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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20210313T220000
DTEND;TZID=America/Los_Angeles:20210313T233000
DTSTAMP:20260406T061157
CREATED:20210128T145912Z
LAST-MODIFIED:20210128T145912Z
UID:10001079-1615672800-1615678200@www.ocastronomers.org
SUMMARY:Open Spiral Bar
DESCRIPTION:This event is free and open to public\, to attend please register using the zoom.us link on the box above. \nCome and socialize with your fellow astronomy enthusiasts face-to-face virtually!\nBring your latest astrophotos\, mini-presentation\, questions or none and your own refreshments. \n \nViews: 1
URL:https://www.ocastronomers.org/calendar/open-spiral-bar-2021-03/
LOCATION:Online
CATEGORIES:Meeting After the Meeting
ATTACH;FMTTYPE=image/jpeg:https://www.ocastronomers.org/wp-content/uploads/2020/06/Meeting6.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20210312T193000
DTEND;TZID=America/Los_Angeles:20210312T213000
DTSTAMP:20260406T061157
CREATED:20210127T231430Z
LAST-MODIFIED:20210128T150148Z
UID:10001078-1615577400-1615584600@www.ocastronomers.org
SUMMARY:Online General Meeting - March 2021
DESCRIPTION:This is an online event\, to attend please register with zoom using the link on the box above. \nGearing Up to Explore an Icy Moon: the Europa Clipper Mission\n \nWhat is just a quarter the diameter of the Earth but may have twice as much water as of all the Earth’s oceans combined under an icy shell? Meet Europa – a beautiful ice-ocean moon of Jupiter that may have all of the ingredients necessary for life. \nFlight Systems Engineer Tracy Drain will give you an inside peek into the mission that is in development right now\, preparing to go explore this fascinating place. The Europa Clipper spacecraft will carry a suite of science instruments on a journey from the Earth out to the Jupiter system. Once there\, it will execute a series of close flybys of Europa\, braving the intense radiation field that surrounds Jupiter\, to gather the data that will help scientists answer some long-standing questions about this world. \nTracy Drain\n \nTracy Drain is a Flight Systems Engineer working at NASA’s Jet Propulsion Laboratory. In her 20 years at JPL\, she has participated in the development and operation of the Mars Reconnaissance Orbiter (a science and relay orbiter at Mars)\, the Kepler mission (searching for Exoplanets)\, the Juno mission (a science orbiter at Jupiter)\, and the Psyche mission (an asteroid mission slated to launch in 2022). She is now the lead Flight Systems Engineer for the Europa Clipper mission\, currently planned to launch in 2024. A life-long learner\, Tracy loves to encouraging people of all ages nurture their curiosity and explore the wonders that surround us every day. \nhttps://europa.nasa.gov/mission/about/ \nhttps://europa.nasa.gov/resources/148/europa-water-world-infographic/ \n  \nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-2021-03/
LOCATION:Online
CATEGORIES:General Meetings
ATTACH;FMTTYPE=image/jpeg:https://www.ocastronomers.org/wp-content/uploads/2021/01/148_Europa_Water_World_1600-1.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20210219T203000
DTEND;TZID=America/Los_Angeles:20210219T220000
DTSTAMP:20260406T061157
CREATED:20210127T225127Z
LAST-MODIFIED:20210127T225217Z
UID:10001077-1613766600-1613772000@www.ocastronomers.org
SUMMARY:Online Ventura County Astronomical Society's General Meeting
DESCRIPTION:This is an online event held by OCA for VCAS.\nNo prior registration is required but when entering the webinar\, zoom will ask for your name and email.\nAt the time of the meeting\, to attend via zoom app click here\, via your browser click here.\nTo install the zoom app click here.\n \n  \nViews: 1
URL:https://www.ocastronomers.org/calendar/vcas-general-meeting-2021-02/
LOCATION:Online
CATEGORIES:General Meetings,Non OCA Event
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20210213T220000
DTEND;TZID=America/Los_Angeles:20210213T233000
DTSTAMP:20260406T061157
CREATED:20210107T182451Z
LAST-MODIFIED:20210127T222923Z
UID:10001064-1613253600-1613259000@www.ocastronomers.org
SUMMARY:Open Spiral Bar
DESCRIPTION:This event is free and open to public\, to attend please register using the zoom.us link on the box above. \nCome and socialize with your fellow astronomy enthusiasts face-to-face virtually!\nBring your latest astrophotos\, mini-presentation\, questions or none and your own refreshments. \n \nViews: 1
URL:https://www.ocastronomers.org/calendar/open-spiral-bar-2021-02/
LOCATION:Online
CATEGORIES:Meeting After the Meeting
ATTACH;FMTTYPE=image/jpeg:https://www.ocastronomers.org/wp-content/uploads/2020/06/Meeting6.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20210115T203000
DTEND;TZID=America/Los_Angeles:20210115T220000
DTSTAMP:20260406T061157
CREATED:20201010T212209Z
LAST-MODIFIED:20210107T180754Z
UID:10001031-1610742600-1610748000@www.ocastronomers.org
SUMMARY:Online Ventura County Astronomical Society's General Meeting
DESCRIPTION:This is an online event held by OCA for VCAS.\nNo prior registration is required but when entering the webinar\, zoom will ask for your name and email.\nAt the time of the meeting\, to attend via zoom app click here\, via your browser click here.\nTo install the zoom app click here.\n \n  \nViews: 1
URL:https://www.ocastronomers.org/calendar/vcas-general-meeting-january-2021/
LOCATION:Online
CATEGORIES:General Meetings,Non OCA Event
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20210109T220000
DTEND;TZID=America/Los_Angeles:20210109T233000
DTSTAMP:20260406T061157
CREATED:20201117T100607Z
LAST-MODIFIED:20201117T100607Z
UID:10001038-1610229600-1610235000@www.ocastronomers.org
SUMMARY:Open Spiral Bar
DESCRIPTION:This event is free and open to public\, to attend please register using the zoom.us link on the box above. \nCome and socialize with your fellow astronomy enthusiasts face-to-face virtually!\nBring your latest astrophotos\, mini-presentation\, questions or none and your own refreshments. \n \nViews: 1
URL:https://www.ocastronomers.org/calendar/open-spiral-bar-january-2021/
LOCATION:Online
CATEGORIES:Meeting After the Meeting
ATTACH;FMTTYPE=image/jpeg:https://www.ocastronomers.org/wp-content/uploads/2020/06/Meeting6.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20210108T193000
DTEND;TZID=America/Los_Angeles:20210108T213000
DTSTAMP:20260406T061157
CREATED:20201128T230355Z
LAST-MODIFIED:20201128T230355Z
UID:10001055-1610134200-1610141400@www.ocastronomers.org
SUMMARY:Online General Meeting - January 2021
DESCRIPTION:This is an online event\, to attend please register with zoom using the link on the box above. \nDark Matter and the Dance of Dwarf Galaxies\n \nMajor galaxies\, such as our cosmic home the Milky Way\, the nearby Andromeda galaxy\, or Centaurus A\, are surrounded by swarms of smaller dwarf satellite galaxies. Over the past 15 years\, our knowledge of these satellite galaxies has exploded. The number of known Milky Way satellites has quadrupled\, and highly precise measurements of their motions have provided unprecedented insights into their complex orbital dance. In my research\, I investigate the distribution and motion of satellite galaxies to test our ideas of how the cosmos in general\, and galaxies in particular\, have formed and evolved. Our current leading model of cosmology was largely developed on cosmic scales\, and implies that most of the mass in the Universe is dominated by unknown stuff: Dark Matter. Based on this cosmological model\, computer simulations can nowadays follow the emergence and evolution of structure in model universes. These simulations predict the distribution and properties of galaxies down to the smallest scales (astronomically speaking). They predict a highly chaotic tangle of satellite galaxies. In contrast\, my research finds that the observed situation resembles an ordered choreography: the satellite galaxies around the Milky Way\, Andromeda\, and Centaurus A are aligned along planes. Many satellites also move along these structures in a common direction. This finding poses a serious challenge to our model of cosmology – and might point at a fundamental misinterpretation of cosmic proportions. \nMarcel S. Pawlowski\n \nMy research is situated at the intersection of observations and cosmological simulations. I am most interested in testing our cosmological knowledge and our understanding of the properties and dynamics of dwarf galaxies with observations of nearby systems of satellite galaxies. After receiving my PhD from the University of Bonn in 2013\, I moved to the United States for a postdoc position at Case Western Reserve University in Cleveland\, Ohio. In 2016\, I was awarded a NASA Hubble Fellowship to work at the University of California Irvine. At the end of 2018 I moved back to Germany to my current position as Schwarzschild Fellow at the Leibniz-Institute for Astrophysics in Potsdam. \nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-january-2021/
LOCATION:Online
CATEGORIES:General Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20201212T220000
DTEND;TZID=America/Los_Angeles:20201212T233000
DTSTAMP:20260406T061157
CREATED:20201010T212352Z
LAST-MODIFIED:20201010T212419Z
UID:10001032-1607810400-1607815800@www.ocastronomers.org
SUMMARY:Open Spiral Bar
DESCRIPTION:This event is free and open to public\, to attend please register using the zoom.us link on the box above. \nCome and socialize with your fellow astronomy enthusiasts face-to-face virtually!\nBring your latest astrophotos\, mini-presentation\, questions or none and your own refreshments. \n \nViews: 1
URL:https://www.ocastronomers.org/calendar/open-spiral-bar-december-2020/
LOCATION:Online
CATEGORIES:Meeting After the Meeting
ATTACH;FMTTYPE=image/jpeg:https://www.ocastronomers.org/wp-content/uploads/2020/06/Meeting6.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20201211T193000
DTEND;TZID=America/Los_Angeles:20201211T213000
DTSTAMP:20260406T061157
CREATED:20201026T193327Z
LAST-MODIFIED:20201212T100213Z
UID:10001035-1607715000-1607722200@www.ocastronomers.org
SUMMARY:Online General Meeting - December 2020
DESCRIPTION:This is an online event\, to attend please register with zoom using the link on the box above. \nState of the Universe Report\n \nThis lecture will discuss the current understanding and the latest discoveries regarding cosmology—the science of the universe as a whole—and galaxies and planets. There is overwhelming evidence that most of the density of the universe is invisible dark matter and dark energy\, with atomic matter making up only about five percent of cosmic density. UC Santa Cruz cosmologists helped to create the standard modern cosmological theory—but the latest high-precision measurements have revealed potential discrepancies that may require new physics. Galaxies were long thought to start as disks of gas and stars\, but observations by Hubble Space Telescope show that most galaxies instead start pickle-shaped. More massive galaxies have massive black holes at their centers\, and matter falling onto these black holes causes outflows of energy that can strongly affect their host galaxies. Information about planetary systems is growing rapidly with new observations\, and our own solar system seems increasingly to be unusual. \nJoel R. Primack\n \nJoel R. Primack specializes in the formation and evolution of galaxies and the nature of the dark matter that makes up most of the matter in the universe. After helping to create what is now called the “Standard Model” of particle physics\, Primack began working in cosmology in the late 1970s\, and he became a leader in the new field of particle astrophysics. His 1982 paper with Heinz Pagels was the first to propose that a natural candidate for the dark matter is the lightest supersymmetric particle. He is one of the principal originators and developers of the theory of Cold Dark Matter\, which has become the basis for the standard modern picture of structure formation in the universe. With support from the National Science Foundation\, NASA\, and the Department of Energy\, he has been using supercomputers to simulate and visualize the evolution of the universe and the formation of galaxies under various assumptions. \nHere’s the link to a recording of my 10 November 2020 UCSC Emeriti Research Lecture “State of the Universe Report: Cosmos\, Galaxies\, Planets” on YouTube:\nhttps://www.youtube.com/watch?v=BAuiSC0iUXE\n\nHere are some of my recent research results that may be of wider interest:\n\n— Local measurements of the the Hubble parameter give H_0 = 73 ± 1 km/s/Mpc\, while measurements of the Cosmic Microwave Background extrapolated to the present with the standard ΛCDM cosmology give H_0 = 67 ± 0.5 km/s/Mpc.  This “Hubble tension” could be resolved if there was a brief period when dark energy contributed about 10% to the cosmic density about 35\,000 years after the Big Bang.  I initiated the first N-body simulations with this Early Dark Energy (EDE) cosmology.  Our paper on this https://arxiv.org/pdf/2006.14910.pdf was led by Anatoly Klypin.  We found that EDE predicts 50% more rich clusters of galaxies at redshift z=1 than standard ΛCDM\, and many more galaxies at higher redshifts.  These predictions will be tested by new astronomical surveys now underway. We are resubmitting the paper to MNRAS in response to a favorable referee report\, so it will be published soon.  We are setting up to run 500 Mpc/h paired simulations with Bolshoi resolution of standard ΛCDM and EDE; the use of the same random number seed will ensure that all the large-scale structures will correspond in these simulations.  We plan to do abundance matching with both simulations\, to fill all the halos with UniverseMachine and Santa Cruz SAM galaxies\, and to compare with observations.\n\n— I initiated a paper that shows that Earth may be a “Goldilocks” planet in a new way\, with enough radioactive heat generation to power plate tectonics and not too much to kill the geodynamo generating the Earth’s magnetic field.  Tectonics and a magnetic field may both be necessary for the evolution of complex life.  Earth’s radioactive heat is generated by the two longest-lived radioactive elements thorium and uranium\, which are produced in extremely rare events such as neutron-star mergers — as a result\, the amount of Th and U varies a lot between different planetary systems.  Our paper\, led by my UCSC colleague Francis Nimmo\, was published November 10\n https://ui.adsabs.harvard.edu/abs/2020ApJ…903L..37N\nThe UCSC press release is at https://news.ucsc.edu/2020/11/planet-dynamos.html \,\nwith some popular articles at\nhttps://astrobiology.nasa.gov/news/how-radioactivite-elements-may-make-planets-suitable-or-hostile-to-life/\nhttps://www.scientificamerican.com/article/stellar-smashups-may-fuel-planetary-habitability-study-suggests/\nhttps://cosmoquest.org/x/2020/11/radioactive-elements-may-be-crucial-to-rocky-planets-habitability/\nhttps://www.centauri-dreams.org/2020/11/13/radioactive-elements-and-planetary-habitability/\nhttps://astrobites.org/2020/11/17/radiogenic-heat-hurts-dynamos/\nhttps://www.universetoday.com/148796/what-role-do-radioactive-elements-play-in-a-planets-habitability/\n\n— I’ve continued to make novel uses of machine learning to compare simulations with observations and to analyze observations.  My group’s latest papers on this focused on giant clumps found in HST images of most redshift z > 1 star-forming galaxies.  In https://ui.adsabs.harvard.edu/abs/2020MNRAS.499..814H we trained a CNN to measure the masses of giant clumps; we made public our analysis of the entire CANDELS galaxy dataset\, and we used a complete set from GOODS-N and S with 7 wavebands to measure clump properties as functions of galaxy properties including sSFR\, radius\, and stellar mass.  In https://ui.adsabs.harvard.edu/abs/2020arXiv201106616G we trained a CNN to measure the lifetimes of the clumps in the CANDELS data; this paper was just accepted for publication.  Our earlier paper that made extensive use of machine learning to compare HST observations with theory was profiled in https://news.ucsc.edu/2018/04/deep-learning-galaxies.html \n\n\nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-december-2020/
LOCATION:Online
CATEGORIES:General Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20201120T203000
DTEND;TZID=America/Los_Angeles:20201120T220000
DTSTAMP:20260406T061157
CREATED:20201010T212118Z
LAST-MODIFIED:20201117T090716Z
UID:10001030-1605904200-1605909600@www.ocastronomers.org
SUMMARY:Ventura County Astronomical Society's Online General Meeting
DESCRIPTION:This is an online event held by OCA for VCAS.\nNo prior registration is required but when entering the webinar\, zoom will ask for your name and email.\nAt the time of the meeting\, to attend via zoom app click here\, via your browser click here.\nTo install the zoom app click here.\n \n \nMolly Shelton is a Power Systems Engineer at Jet Propulsion Laboratory in Pasadena.  She is an early career hire\, graduating from college with a BS in Physics in 2016 and joining the Power and Sensor Systems group to design\, build and test hardware for missions all throughout the solar system.  She has worked on a handful of projects in her 4 years at JPL including Dawn\, SHERLOC\, and Europa Clipper.  She started her path to JPL in a high school robotics club and is honored to be able to share her story thus far with those who yearn for the stars in the same way. \n \nViews: 1
URL:https://www.ocastronomers.org/calendar/vcas-general-meeting-november-2020/
LOCATION:Online
CATEGORIES:General Meetings,Non OCA Event
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20201114T220000
DTEND;TZID=America/Los_Angeles:20201114T233000
DTSTAMP:20260406T061157
CREATED:20201005T161532Z
LAST-MODIFIED:20201005T161532Z
UID:10001029-1605391200-1605396600@www.ocastronomers.org
SUMMARY:Open Spiral Bar
DESCRIPTION:This event is free and open to public\, to attend please register using the zoom.us link on the box above. \nCome and socialize with your fellow astronomy enthusiasts face-to-face virtually!\nBring your latest astrophotos\, mini-presentation\, questions or none and your own refreshments. \n \nViews: 1
URL:https://www.ocastronomers.org/calendar/open-spiral-bar-november-2020/
LOCATION:Online
CATEGORIES:Meeting After the Meeting
ATTACH;FMTTYPE=image/jpeg:https://www.ocastronomers.org/wp-content/uploads/2020/06/Meeting6.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20201113T193000
DTEND;TZID=America/Los_Angeles:20201113T213000
DTSTAMP:20260406T061157
CREATED:20201001T154141Z
LAST-MODIFIED:20201003T192905Z
UID:10001027-1605295800-1605303000@www.ocastronomers.org
SUMMARY:Online General Meeting - November 2020
DESCRIPTION:This is an online event\, to attend please register with zoom using the link on the box above. \nNASA’s New Horizons Mission to Pluto and Beyond\n \nSince its launch in 2006\, the New Horizons spacecraft has been speeding out of the solar system\, transforming our understanding of planetary science along the way. In 2015\, it provided the first close-up views of the Pluto system and revealed an astonishingly active world\, replete with active glaciers\, dynamic atmosphere\, and possible signs of cryovolcanism. Four years (and about five astronomical units) later\, New Horizons went on to perform the first flyby of a small Kuiper Belt Object: (486958) Arrokoth (formerly 2014 MU69). This 30-km wide\, icy world is a relic of planet formation\, with its own odd geology and formation story. In this talk\, I’ll recap New Horizons amazing journey—and my parallel journey here on Earth\, going from a graduate student\, competing against the New Horizons team\, to a researcher embedded within the team and shaping its future. I’ll close with some perspective about future exploration of the outer solar system. \nJames Tuttle Keane\n \nDr. James Tuttle Keane hails from Cedar Rapids\, Iowa. He received a bachelor’s degrees in Astronomy and Geology from the University of Maryland\, College Park\, and a doctorate in planetary science from the University of Arizona. After a postdoctoral position at the California Institute of Technology\, he started at JPL in 2020. Dr. Keane is a planetary scientist\, studying the interactions between orbital dynamics\, rotational dynamics\, and geologic processes on rocky and icy worlds across the solar system. He uses a combination of theoretical methods\, coupled with the analysis of spacecraft-derived datasets to investigate the dynamics\, structure\, origin\, and evolution of solar system bodies. He has extensive experience with NASA missions\, including GRAIL\, New Horizons\, and the proposed Io Volcano Observer. \nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-november-2020/
LOCATION:Online
CATEGORIES:General Meetings
ATTACH;FMTTYPE=image/png:https://www.ocastronomers.org/wp-content/uploads/2020/10/Arrokoth.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20201016T203000
DTEND;TZID=America/Los_Angeles:20201016T223000
DTSTAMP:20260406T061157
CREATED:20201005T145108Z
LAST-MODIFIED:20201012T195947Z
UID:10001028-1602880200-1602887400@www.ocastronomers.org
SUMMARY:Ventura County Astronomical Society's Online General Meeting
DESCRIPTION:This is an online event held by OCA for VCAS.\nNo prior registration is required but when entering the webinar\, zoom will ask for your name and email.\nAt the time of the meeting\, to attend via zoom app click here\, via your browser click here.\nTo install the zoom app click here.\n \n  \n2020: A Year of Perseverance and Ingenuity\nSarah Elizabeth McCandless\n \nSarah Elizabeth McCandless works for the Jet Propulsion Laboratory (JPL) as a navigation engineer. She performs operational as well as pre-launch orbit determination analyses and has worked on a variety of flight projects including MAVEN (Mars Atmosphere and Volatile Evolution)\, InSight\, Mars 2020\, and Europa Clipper. She also develops multi-mission software tools and has researched the feasibility of using optical communication observables for deep-space navigation. She earned a B.S. in aerospace engineering and a minor in French at the University of Kansas. Subsequently\, she earned an M.S. in aerospace engineering from the University of Texas. Outside of work\, Sarah Elizabeth enjoys flying Cessna 172s\, hiking\, and reading. \nViews: 1
URL:https://www.ocastronomers.org/calendar/vcas-general-meeting-october-2020/
LOCATION:Online
CATEGORIES:General Meetings,Non OCA Event
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20201010T220000
DTEND;TZID=America/Los_Angeles:20201010T233000
DTSTAMP:20260406T061157
CREATED:20200822T155011Z
LAST-MODIFIED:20200822T155105Z
UID:10001023-1602367200-1602372600@www.ocastronomers.org
SUMMARY:Open Spiral Bar
DESCRIPTION:This event is free and open to public\, to attend please register using the zoom.us link on the box above. \nCome and socialize with your fellow astronomy enthusiasts face-to-face virtually!\nBring your latest astrophotos\, mini-presentation\, questions or none and your own refreshments. \n \nViews: 1
URL:https://www.ocastronomers.org/calendar/open-spiral-bar-october-2020/
LOCATION:Online
CATEGORIES:Meeting After the Meeting
ATTACH;FMTTYPE=image/jpeg:https://www.ocastronomers.org/wp-content/uploads/2020/06/Meeting6.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20201009T193000
DTEND;TZID=America/Los_Angeles:20201009T213000
DTSTAMP:20260406T061157
CREATED:20200822T152000Z
LAST-MODIFIED:20201014T185123Z
UID:10001022-1602271800-1602279000@www.ocastronomers.org
SUMMARY:Online General Meeting - October 2020
DESCRIPTION:This is an online event\, to attend please register with zoom using the link on the box above. \nDownload: Club Announcements \nThis meeting’s speaker changed at the last minutes and the information reflected here has not been updated. \nDark Matter and the Dance of Dwarf Galaxies\n \nMajor galaxies\, such as our cosmic home the Milky Way\, the nearby Andromeda galaxy\, or Centaurus A\, are surrounded by swarms of smaller dwarf satellite galaxies. Over the past 15 years\, our knowledge of these satellite galaxies has exploded. The number of known Milky Way satellites has quadrupled\, and highly precise measurements of their motions have provided unprecedented insights into their complex orbital dance. In my research\, I investigate the distribution and motion of satellite galaxies to test our ideas of how the cosmos in general\, and galaxies in particular\, have formed and evolved. Our current leading model of cosmology was largely developed on cosmic scales\, and implies that most of the mass in the Universe is dominated by unknown stuff: Dark Matter. Based on this cosmological model\, computer simulations can nowadays follow the emergence and evolution of structure in model universes. These simulations predict the distribution and properties of galaxies down to the smallest scales (astronomically speaking). They predict a highly chaotic tangle of satellite galaxies. In contrast\, my research finds that the observed situation resembles an ordered choreography: the satellite galaxies around the Milky Way\, Andromeda\, and Centaurus A are aligned along planes. Many satellites also move along these structures in a common direction. This finding poses a serious challenge to our model of cosmology – and might point at a fundamental misinterpretation of cosmic proportions. \nMarcel S. Pawlowski\n \nMy research is situated at the intersection of observations and cosmological simulations. I am most interested in testing our cosmological knowledge and our understanding of the properties and dynamics of dwarf galaxies with observations of nearby systems of satellite galaxies. After receiving my PhD from the University of Bonn in 2013\, I moved to the United States for a postdoc position at Case Western Reserve University in Cleveland\, Ohio. In 2016\, I was awarded a NASA Hubble Fellowship to work at the University of California Irvine. At the end of 2018 I moved back to Germany to my current position as Schwarzschild Fellow at the Leibniz-Institute for Astrophysics in Potsdam. \nViews: 1
URL:https://www.ocastronomers.org/calendar/online-general-meeting-october-2020/
LOCATION:Online
CATEGORIES:General Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20200925T203000
DTEND;TZID=America/Los_Angeles:20200925T223000
DTSTAMP:20260406T061157
CREATED:20200918T181112Z
LAST-MODIFIED:20200920T122004Z
UID:10001025-1601065800-1601073000@www.ocastronomers.org
SUMMARY:Ventura County Astronomical Society's Online General Meeting
DESCRIPTION:This is an online event held by OCA for VCAS.\nNo prior registration is required but when entering the webinar\, zoom will ask for your name and email.\nAt the time of the meeting\, to attend via zoom app click here\, via your browser click here.\nTo install the zoom app click here.\n \nIt Broke! A Story of How We Fixed It\n \nNASA’s Deep Space 1 (DS1) mission was designed to take risks so subsequent missions would not have to. Following its successful 1998-1999 prime mission to test new technologies\, DS1 embarked on an ambitious two-year extended mission dedicated to comet exploration. However\, that journey was soon interrupted as the probe suffered a hardware failure widely considered to be catastrophic. \nUnder Marc Rayman’s leadership\, the JPL operations team then undertook one of the most remarkable deep-space rescue missions ever attempted. After seven months of intensive and stressful work\, they managed to restore the spacecraft to an operational capability from well over 150 million miles away. DS1 then resumed its pursuit of the comet. The team encountered and overcame more daunting challenges in the subsequent 15 months\, and in 2001 they succeeded in acquiring NASA’s first close-up images of a comet nucleus and other unique data. \n \nThis extraordinary and exciting success story is not well known\, even among the astronomy and space communities. Dr. Rayman described it in a highly entertaining and inspiring public presentation last year. He will introduce the video\, we will all watch it\, and then he will answer questions. The video can be found here. \nMarc Rayman\n \nMarc Rayman is not only a top rocket scientist at NASA’s Jet Propulsion Laboratory but also a magnificent communicator. He is currently JPL’s chief engineer for mission operations and science. \nHe grew up in Toledo\, Ohio\, and earned a B.A. in physics from Princeton University. His undergraduate work focused on astrophysics and cosmology. He received an M.S. in physics from the University of Colorado in Boulder\, where he conducted investigations in nuclear physics. He then performed research at the Joint Institute for Laboratory Astrophysics (JILA) on experimental tests of special relativity and atomic and laser physics\, and received his Ph.D. there. He continued at JILA as a postdoctoral researcher. Throughout his time at JILA\, he worked with Dr. John Hall\, who subsequently won a Nobel Prize in Physics. \nDr. Rayman combined his scientific training with his lifelong study and passion for astronomy and the exploration of space by joining JPL in 1986. His work there has spanned a broad range\, including optical interferometry missions to detect planets around other stars\, design of a mission to return samples from Mars\, a laser altimeter for Mars\, the Spitzer infrared space telescope\, the development of systems to use lasers instead of radios to communicate with interplanetary spacecraft\, and more. \n \nIn 1994\, he helped initiate a new NASA program to characterize highly sophisticated and risky technologies for future space science missions by flying them on dedicated test flights. The first mission of this New Millennium program\, Deep Space 1\, was launched in 1998\, and he worked on it from its inception in 1995 to its conclusion in 2001. During the course of the project\, Dr. Rayman served as chief mission engineer\, mission director\, and project manager. The new technologies that were tested on DS1 (including such exotic systems as ion propulsion and artificial intelligence) were designed to reduce the cost and risk and to improve the performance of subsequent interplanetary missions. The primary mission was extremely successful and led to a very productive and exciting extension\, culminating in a spectacular encounter with Comet Borrelly that yielded NASA’s first close-up pictures of the nucleus of a comet. The spacecraft remains in orbit around the Sun. \nHe was chief engineer\, mission director\, and project manager on a mission that built on DS1 to explore the two largest uncharted worlds in the inner solar system. Launched in 2007\, Dawn orbited two giants of the main asteroid belt\, protoplanet Vesta and dwarf planet Ceres\, in an ambitious mission to reveal insights into the dawn of the solar system. After a spectacularly successful investigation of Vesta in 2011-2012\, it arrived at Ceres in 2015\, where it will remain forever. It is the only spacecraft ever to orbit two extraterrestrial destinations. The spacecraft outlasted its expected lifetime\, and the mission concluded successfully in 2018. \n \nDr. Rayman is the recipient of numerous honors. His many accolades from NASA include a remarkable three Exceptional Achievement Medals and four Outstanding Leadership Medals\, which are among NASA’s most selective awards. He was named a JPL Fellow\, the highest technical position there\, “for extraordinary technical contributions made over an extended period.” He is the only person to have received both the Exceptional Technical Excellence Award and the Exceptional Leadership Award\, two of JPL’s most prestigious honors. Asteroid Rayman was named in recognition of his contributions to space exploration. On behalf of the Dawn team\, in 2016 he accepted the Robert J. Collier Trophy\, the greatest award in the US for space or aviation. (The trophy resides at the Smithsonian National Air & Space Museum in Washington.) Among his other honors was receiving the Astronautics Engineer of the Year Award from the National Space Club and Foundation. \n \nMarc is also very active in education and public outreach. He is a highly regarded and very popular speaker\, relating the thrill of science and the excitement of discovery\, and he has appeared frequently on television and been quoted often in other news media on subjects as wide-ranging as DS1 and Dawn\, a fire onboard the Mir space station\, the discovery of the top quark\, and the profundity of humankind’s exploration of the cosmos. He collaborates with the creator of the popular syndicated comic strip Brewster Rockit: Space Guy! for special editions on science topics. His DS1 blog had an enormous following and gained critical acclaim as it provided an exceptionally entertaining and informative view into the flight of DS1\, and his Dawn blog continued in the same delightful style. Marc is technical advisor and a popular writer for NASA’s educational website the Space Place (where his digital alter ego\, Dr. Marc\, resides). Marc received a special award from JPL for his creative and engaging work to inform and inspire the public. \nIn addition to more than 75 scholarly publications in physics\, space science\, and space engineering\, he has published many articles on Apollo\, Skylab\, the space shuttle\, piloted and robotic missions of the former USSR\, interplanetary missions\, and a variety of topics in astrophysics\, cosmology\, and space exploration for reference books\, encyclopedias\, magazines\, and newspapers. \n \nOne of Marc’s favorite hobbies is learning about the space activities of all space-faring nations. Since before the age of 10\, he has been building an extensive collection of information (and memorabilia) from over 40 nations. (His extraordinary personal collection is featured in this amusing video tour geared for space buffs.) \nHis other hobbies include international dancing (he and his wife teach and dance with several groups)\, photography\, hiking\, and other outdoor activities. Marc also holds a black belt in karate. His wife\, Dr. Janice Rayman\, is a brain scientist and a very experienced mountaineer. They live in La Cañada\, California\, with their cats\, Quark and Lepton\, tropical fish\, and a large variety of fauna and flora in their pond. \n  \nViews: 1
URL:https://www.ocastronomers.org/calendar/vcas-general-meeting-september-2020/
LOCATION:Online
CATEGORIES:General Meetings,Non OCA Event
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20200911T193000
DTEND;TZID=America/Los_Angeles:20200911T213000
DTSTAMP:20260406T061157
CREATED:20200713T100821Z
LAST-MODIFIED:20200816T070447Z
UID:10001016-1599852600-1599859800@www.ocastronomers.org
SUMMARY:Online General Meeting - September 2020
DESCRIPTION:This event is free and open to public\, to attend please use the zoom.us link on the box above. \nUncovering the Death Throes of Massive Stars Through Supernovae\n \nStars more massive than about 10 solar masses explode at the end of their life and die as supernovae. How massive stars look like when they explode? Astronomers try to answer this question through supernovae. It has been recently recognized that massive stars seem to have an unexpectedly active life just before they explode. In this talk\, I will introduce supernovae and what they tell us about the “death throes” of massive stars. \nTakashi Moriya\n \nI am an Assistant Professor at National Astronomical Observatory of Japan (NAOJ). I was born and grew up in Tokyo\, Japan. I received my PhD in Astronomy from the University of Tokyo in 2013. I worked at University of Bonn in Germany as a postdoctoral research fellow from 2013 to 2016 and moved to NAOJ in 2016. My research interest is mainly in theoretical aspects of supernovae and stellar evolution\, but I also work on observational astronomy using the Subaru telescope operated by NAOJ. \nViews: 1
URL:https://www.ocastronomers.org/calendar/online-general-meeting-september-2020/
LOCATION:Online
CATEGORIES:General Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20200814T193000
DTEND;TZID=America/Los_Angeles:20200814T213000
DTSTAMP:20260406T061157
CREATED:20200603T205519Z
LAST-MODIFIED:20200724T223321Z
UID:10001012-1597433400-1597440600@www.ocastronomers.org
SUMMARY:Online General Meeting - August 2020
DESCRIPTION:This event is free and open to public\, to attend please use the zoom registration link on the box above. \nSolar Eclipses: Math\, Science\, and Spectacle\nA composite image of the 2013 total solar eclipse at solar maximum. (Photos by Jay Pasachoff\, Allen Davis\, and Vojtech Rusin; computer compositing by Miloslav Druckmüller) \nAs a veteran of 72 solar eclipses —including 35 total solar eclipses\, 18 annular solar eclipses\, and 19 partial solar eclipses— astronomer Jay Pasachoff is uniquely positioned to share recent scientific work related to eclipses\, international coordination of observations\, and future plans. What role does mathematics play in predicting eclipses\, from the ancient saros observations to Halley’s 1715 map\, and up to today’s web-based zoom-and-click maps? How do theoretical predictions based on magnetic-field measurements\, emission spectra of high ionization lines\, and radio observations compare to the high res images available today? \nThe sky with the total eclipse corona and the umbra during the July 2\, 2019\, total solar eclipse photographed from the Cerro Tololo Inter-American Observatory\, Chile (David Sliski\, as part of the Williams College Expedition). \nThe beautiful streamers that become dramatically visible during an eclipse’s totality are shaped by the solar corona’s magnetic field. How do theoretical predictions based on magnetic-field measurements\, emission spectra of high ionization lines\, and radio observations compare to the high res images available today? \n \nI will discuss my expeditions to recent solar eclipses\, including total eclipses in the United States in 2017 and in Chile in 2019\, as well as the annular solar eclipse in India in 2019. I will also discuss the next solar eclipses\, including Chile and Argentina on December 14\, 2020\, and Mexico/United States/Canada on April 28\, 2024\, and the October 14\, 2023\, annular eclipse for which the partial-eclipse coverage of the Sun’s diameter from Orange County will be 78%. I will emphasize current topics of research of current solar eclipses\, and how they link with the Sun-Earth connection and our understanding of the coronas of trillions of other stars. \n  \nJay Pasachoff\n \nJay Pasachoff is Field Memorial Professor of Astronomy and Director of the Hopkins Observatory at Williams College\, Williamstown\, Massachusetts\, and a Visiting Scientist at Carnegie Observatories. (Prior to his Williams College appointment\, he was a postdoctoral fellow at Caltech and what was then called the Hale Observatories—Mt. Wilson and Palomar.) A veteran of 72 solar eclipses\, he is Chair of the International Astronomical Union’s Working Group on Solar Eclipses and a member of the American Astronomical Society’s Solar Eclipse Task Force. \n \nHis recent research includes studies of the dynamics of the solar corona studied from the ground at eclipses and from spacecraft\, and the temperature and structure of the corona over the solar-activity cycle from images and spectra. He also studies the atmosphere of Pluto through observation of stellar occultations and participated in the occultation study of Arrokoth that led to the diversion of NASA’s New Horizons spacecraft to image it on January 1\, 2019\, with the farthest-from-Earth photograph ever taken. His current eclipse research is supported by the Solar Terrestrial Program of the Atmospheric and Geospace Sciences Division of the U.S. National Science Foundation. His Pluto/Arrokoth research has been supported by NASA. \n \nPasachoff received the 2003 Education Prize of the American Astronomical Society\, the 2012 Janssen Prize of the Société Astronomique de France\, the 2015 Richtmyer Lecture Award from the American Association of Physics Teachers\, and the 2019 Klumpke-Roberts Award from the Astronomical Society of the Pacific. \nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-august-2020/
LOCATION:Online
CATEGORIES:General Meetings
ATTACH;FMTTYPE=image/jpeg:https://www.ocastronomers.org/wp-content/uploads/2020/06/LASCO_Eclipse_SUVI_195_Label.jpeg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20200710T193000
DTEND;TZID=America/Los_Angeles:20200710T213000
DTSTAMP:20260406T061157
CREATED:20200610T134559Z
LAST-MODIFIED:20200617T163149Z
UID:10001013-1594409400-1594416600@www.ocastronomers.org
SUMMARY:Online General Meeting - July 2020
DESCRIPTION:RSVP using the link on the box above.\nPlease install/update zoom client prior to the event.\n \nCosmic Dawn: The Birth of Galaxies in our Universe\n \nThe Milky Way is but one of an estimated two trillion galaxies in our observable Universe. Modern astronomical telescopes have revealed a rich ecosystem of galaxies\, but our Universe wasn’t always that way. In fact\, there was a time when galaxies did not exist. In this talk\, I will describe how astronomers are trying to unravel the mystery of how and when the first galaxies formed. \nAnson D’Aloisio\n \nI am an Assistant Professor in the Physics & Astronomy Department at UC Riverside. My research interests are in the fields of theoretical astrophysics and cosmology. I am particularly interested in the formation of structures in the Universe (e.g. galaxies and galaxy clusters)\, the epoch of reionization\, and gravitational lensing. I was born and raised in Middletown\, Connecticut. I did my undergraduate work at the University of California\, Riverside\, where I received my B.S. in Physics (minor in Math) in 2005. I went to graduate school at Yale University and received my Ph.D. in Physics in 2011. From there\, I took postdoctoral positions at the University of Texas at Austin\, and the University of Washington. \nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-july-2020/
LOCATION:Online
CATEGORIES:General Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20200614T103000
DTEND;TZID=America/Los_Angeles:20200614T120000
DTSTAMP:20260406T061157
CREATED:20200523T103630Z
LAST-MODIFIED:20200617T150014Z
UID:10001010-1592130600-1592136000@www.ocastronomers.org
SUMMARY:Open Meeting - June 2020
DESCRIPTION:Come and socialize with your fellow astronomy enthusiasts face-to-face at this online meeting! \nBring your latest AstroPhotos or questions or mini-presentation. \nThis event was created as a response to those who missed the social interaction opportunity provided at our in-person general meetings. \nViews: 1
URL:https://www.ocastronomers.org/calendar/open-meeting-june-2020/
LOCATION:Online
CATEGORIES:General Meetings
ATTACH;FMTTYPE=image/jpeg:https://www.ocastronomers.org/wp-content/uploads/2020/05/1465757415-telescope-dusk-banner-large.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20200612T193000
DTEND;TZID=America/Los_Angeles:20200612T213000
DTSTAMP:20260406T061157
CREATED:20200509T135247Z
LAST-MODIFIED:20200617T140802Z
UID:10001007-1591990200-1591997400@www.ocastronomers.org
SUMMARY:General Meeting - June 2020
DESCRIPTION:This event has passed.\nTo provide feedback about the meeting\, click here.\n \nOur Dusty Universe\n\nThe two first images of ESO’s GigaGalaxy Zoom project combined to show a whole view of the Milky Way as could be seen with the unaided eye\, and a more central region observed with an amateur telescope. \n\n  \nMost of the heavy elements that make up the Earth and everything on it (including us) once resided in tiny grains of dust in interstellar space.  I will describe the fascinating lives of interstellar dust grains from their formation in fiery supernova explosions to their incorporation into planets like Earth.  Although dust is an important player in many processes happening in our Galaxy\, it is still very mysterious.  I will explain how we are working to understand the properties of interstellar dust both in our Galaxy and others using space telescopes like Spitzer\, Herschel and\, soon\, the James Webb Space Telescope.\n  \nKarin Sandstrom\n  \n\n  \nI received my Ph.D. in Astronomy & Astrophysics in 2009 from the University of California\, Berkeley. I then moved to Heidelberg\, Germany as a postdoctoral researcher in the Galaxies and Cosmology Department at the Max Planck Institute for Astronomy. In 2011\, I was awarded a Marie Curie fellowship from the European Union to continue my postdoctoral work at MPIA. I moved to Steward Observatory at the University of Arizona in 2013 to become the Bok Postdoctoral Fellow. In August 2015\, I started as an assistant professor at the University of California\, San Diego in the Center for Astrophysics and Space Sciences.\nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-june-2020/
LOCATION:Online
CATEGORIES:General Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20200214T193000
DTEND;TZID=America/Los_Angeles:20200214T213000
DTSTAMP:20260406T061157
CREATED:20191224T140421Z
LAST-MODIFIED:20191224T140421Z
UID:10000979-1581708600-1581715800@www.ocastronomers.org
SUMMARY:General Meeting - February 2020
DESCRIPTION:From Apples to Orange Juice: Can We Infer a Galaxy’s Biography from Just One Photograph? \n \nDespite having data stretching back over 10 billion years and computer simulations that make realistic-looking galaxies starting from just gas and dark matter\, humans do not have a theory that predicts why a galaxy looks the way it does based on what it used to look like. We ask this from the biological theory of evolution\, but\, because astronomers cannot experiment on our subjects\, we face challenges biologists (and sociologists) do not. I will talk about the two main routes we are taking to overcome this handicap: (1) assuming our data nevertheless do look like that of biology or sociology and proceeding accordingly; (2) attempting to infer the past histories of individual objects through the single snapshots we actually have of them. The latter is the correct thing to do\, but it is unclear if it is possible\, which would leave astronomers in the unique position of having data…but nothing to do with it! This epistemological situation\, and the opportunity to explore questions like “Is galaxy evolution knowable?” is fascinating to me\, and I think it cannot but lead to important new insights about our place in the universe. \nLouis Abramson \n \nLouis Abramson is a Carnegie-Princeton Fellow at the Carnegie Observatories in Pasadena. He works to tease-out the growth histories of individual galaxies from information encoded in their colors. He hopes that such galaxy biographies will yield insights into what causes some galaxies to look like the Milky way while others do not. Outside of academia\, Louis is an elected official in the City of Los Angeles and chairs the Homelessness and Outreach Committees of the Central Hollywood Neighborhood Council. \nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-february-2020/
LOCATION:Irvine Lecture Hall of the Chapman University\, 336 N Center St\, Orange\, CA\, 92866\, United States
CATEGORIES:General Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20200110T193000
DTEND;TZID=America/Los_Angeles:20200110T213000
DTSTAMP:20260406T061157
CREATED:20191205T131600Z
LAST-MODIFIED:20191220T210809Z
UID:10000978-1578684600-1578691800@www.ocastronomers.org
SUMMARY:General Meeting - January 2020
DESCRIPTION:Music of the Spheres: Gravitational Waves from Black Holes\n \nThe Nobel prize in 2016 was awarded for the detection of gravitational waves by the LIGO interferometer. So faint are these ripples that the only events powerful enough to produce detectable signals are the collisions of black holes and neutron stars\, some forty times the mass of the sun. I’ll explain how gravitational waves work\, how they are detected and explain some of the weird and interesting properties of black holes. \n \nSimeon Bird\, professor at UCR’s Department of Physics and Astronomy\, earned his Ph.D. from the University of Cambridge and did postdocs at the IAS in Princeton\, Carnegie Mellon and Johns Hopkins. His research interests are in cosmology and galaxy formation. His tool of choice is numerical simulations\, so he is interested in high performance computing\, as well as machine learning. His most notorious work connected the gravitational wave sources of LIGO with the very early universe. \nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-january-2020/
LOCATION:Irvine Lecture Hall of the Chapman University\, 336 N Center St\, Orange\, CA\, 92866\, United States
CATEGORIES:General Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20191213T193000
DTEND;TZID=America/Los_Angeles:20191213T213000
DTSTAMP:20260406T061157
CREATED:20191102T162145Z
LAST-MODIFIED:20191102T162559Z
UID:10000975-1576265400-1576272600@www.ocastronomers.org
SUMMARY:General Meeting - December 2019
DESCRIPTION:Astro-cinematography from the Mount Laguna Observatory\n \nThe stars and galaxies that fill the night sky appear roughly today as they have throughout human history. However\, close inspection shows that these objects change\, sometimes dramatically\, over decades or months\, or occasionally over just minutes. The field of time-domain astronomy has arisen in recent years thanks to technological advances\, and we can now record these changes and reveal celestial mergers\, catastrophic explosions\, and the shadows of distant worlds. In this talk I will discuss our study of the time-variable universe from San Diego State University’s Mount Laguna Observatory including a new\, ultra-wide field imaging system that is beginning to survey the skies. \nRobert Quimby\n \nRobert Quimby is the Director of the Mount Laguna Observatory and an Associate Professor of Astronomy at San Diego State University. He earned his bachelor’s degree in Astrophysics from the University of California\, Berkeley in 1998 and then worked as a research assistant for the Supernova Cosmology Project before entering graduate school. Robert earned his masters and PhD in Astronomy from the University of Texas\, Austin in 2004 and 2006\, respectively. He went on to work as a postdoctoral scholar at Caltech and then at the Kavli Institute for the Physics and Mathematics of the Universe in Japan before joining the faculty at San Diego State University. Robert’s research interests include thermonuclear supernovae\, core-collapse supernovae\, the use of supernovae as cosmological probes\, detection of supernovae in the early universe\, gamma-ray bursts\, and other rare transient phenomena. For his research contributions\, Robert has received the Trumpler Award (Astronomical Society of the Pacific)\, the Hyer Award (American Physical Society)\, and\, a share of the 2015 Breakthrough Prize in Fundamental Physics. \nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-december-2019/
LOCATION:Irvine Lecture Hall of the Chapman University\, 336 N Center St\, Orange\, CA\, 92866\, United States
CATEGORIES:General Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20191108T073000
DTEND;TZID=America/Los_Angeles:20191108T213000
DTSTAMP:20260406T061157
CREATED:20190930T153122Z
LAST-MODIFIED:20190930T153122Z
UID:10000969-1573198200-1573248600@www.ocastronomers.org
SUMMARY:General Meeting - November 2019
DESCRIPTION:OUR LITTLE CORNER OF THE GALAXY – THE EARTHLIGHT EXPRESS\n  \nIn The Earthlight Express\, internationally published science artist Chris Butler brings his popular Our Little Corner of the Galaxy tours of the universe close to home – with an excursion across the wild and majestic wastelands of Earth’s moon.  Join Chris for a unique blend of science and imagination that will transform the distant moon you see in Earth’s sky into what it truly is: a world of its own. \n \nIn The Earthlight Express\, internationally published science artist Chris Butler brings his popular Our Little Corner of the Galaxy tours of the universe close to home – with an excursion across the wild and majestic wastelands of Earth’s moon at some time several centuries hence when such travel may be commonplace.  While earlier episodes of these tours required interstellar probes and spacecraft to visit far-flung destinations in the universe\, The Earthlight Express takes place close to home – which allows us to relax in comfort riding a lunar rail train of the future. \nWhile our method of travel is imaginary\, the places we will be visiting are all quite real.  Indeed\, we will pass through landscapes walked by three of the Apollo moon crews.  Placing ourselves into the scene permits us to appreciate the scope and scale of the places.  We will also be visiting parts of the moon Apollo never reached\, and seeing sights those astronauts never glimpsed\, such as the eerie majesty of the frigid lunar night.  In all\, our path will carry us across more than 2700 miles\, passing through wide valleys\, alongside towering mountains\, across deep crevasses\, and to the sheer lip of a gigantic crater that would hold a dozen large cities. \nChris conceived\, researched\, scripted\, designed\, modeled and edited all elements of the production over a course of four years\, making this the most ambition presentation he has undertaken yet in his 25 years of creating public science education shows. \n \nChris Butler is an internationally renowned artist\, public speaker\, and educational program producer whose work focuses on science\, nature\, and maritime subjects. His illustrations have appeared in thousands of publications worldwide\, from the Times of London to Scientific American. A graduate of California State University Fullerton’s school of Television and Film Production\, Chris has served as an art director and animator on both educational and entertainment programs. \nChris has served as an artist and animator for planetarium and exhibit programs for the Griffith Observatory in Los Angeles for 22 years\, and is a regular lecturer at education venues across the country. Chris’s unique art and presentation style reflects his diverse experience; he has been the director of a children’s science museum\, a tour guide on the original Queen Mary\, a technical illustrator\, a representative for a telescope manufacturer\, an amateur astronomer\, and a financial analyst on the space shuttle program for Rockwell International. \nChris was the 2006 recipient of the Western Astronomical Association’s G. Bruce Blair Medal for service to astronomy. Chris was also recognized in 2002 by having an asteroid named in his honor by the International Astronomical Union (minor planet 13543 Butler). In 2008\, Chris was elected as a Fellow of the Royal Astronomical Society (F.R.A.S.) in recognition of his service to international science education. \nAn avid amateur astronomer\, Chris brings direct experience with astronomy to his work. He has served as a vice-president and board member of the Orange County Astronomers (the largest organization of its kind in the world)\, and is a life member of the Los Angeles Astronomical Society. \nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-november-2019/
LOCATION:Irvine Lecture Hall of the Chapman University\, 336 N Center St\, Orange\, CA\, 92866\, United States
CATEGORIES:General Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20191011T193000
DTEND;TZID=America/Los_Angeles:20191011T193000
DTSTAMP:20260406T061157
CREATED:20190901T144927Z
LAST-MODIFIED:20200604T160816Z
UID:10000955-1570822200-1570822200@www.ocastronomers.org
SUMMARY:General Meeting - October 2019
DESCRIPTION:The Universe in Infrared Light (There is no Red in Infrared) \nThe infrared part of the electromagnetic spectrum plays an indispensable role in both terrestrial and astronomical applications. On Earth\, IR light runs our remote controls\, provides security and surveillance\, and identifies disease. In space\, infrared light allows us to explore planet surface features\, quantify an atmosphere\, and probe through a galactic dust cloud. As advanced technology expands both the size and sensitivity of the IR sensor array\, missions like New Horizons and spacecraft like the James Webb Space Telescope become practical. \n \nToday’s infrared devices make discoveries of thousands of asteroids by the likes of NeoWise to Big Bang protogalaxies imaged by Hubble-like space telescopes something no longer beyond human accomplishment.. This talk will make a somewhat abbreviated overview of the role infrared light and the IR sensor have played in modern astronomy. \n \nGary Bostrup \nGary is a retired Rockwell International Science Center semiconductor materials engineer working in the infrared (IR) sensor field. Over his career\, he helped design and build IR detectors for everything from the Hubble Space Telescope\, to the Deep Impact Probe\, to the New Horizons spacecraft\, to the James Web Space Telescope. Devices Gary help create are active to this day in astronomical observatories around the world from Mauna Kea in Hawaii to South Wales\, Australia. Among the many discoveries\, sensors built by his team helped establish the current limit of the Big Bang at 13.8 billion light years. recorded the first impacts on Jupiter of the comet Shoemaker-Levy\, and finally charted the surface of Pluto. Gary was honored to work with fellow engineers across several disciplines that designed and built the infrared sensors to be launched on the James Web Space Telescope in 2020.\nGary also trained to be an astronaut payload specialist\, intended to fly abroad the Space Shuttle Discovery. In the process\, he logged over 10\,800 seconds in near-zero gravity aboard NASA’s Vomit Comet Boeing 707 low gravity airplane platform. He also served on the NASA material design committee tasked to help build the International Space Station. Gary followed this with space research done at Edward’s Air Force Base\, Marshall Space Flight Center and NASA Washington. These days he enjoys collecting space memorabilia\, doing web design/coding\, and contacting the ISS space station as a ham radio operator. \nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-october-2019/
LOCATION:Irvine Lecture Hall of the Chapman University\, 336 N Center St\, Orange\, CA\, 92866\, United States
CATEGORIES:General Meetings
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190913T073000
DTEND;TZID=America/Los_Angeles:20190913T213000
DTSTAMP:20260406T061157
CREATED:20190713T083621Z
LAST-MODIFIED:20200604T161554Z
UID:10000934-1568359800-1568410200@www.ocastronomers.org
SUMMARY:General Meeting - September 2019
DESCRIPTION:News from the Universe\n \nThe Virgo and two LIGO Gravitational Wave observatories are in observation mode. They detect more than one inspiral event per week\, of Black Holes and Neutron Stars\, and started making a strange picture of the collapsed-matter Universe. \nWhy are there so many heavy Black Holes out there? How did they form in the early Universe? Why so many inspirals? And also why BH pairs appear to come from random pairing and not from binary star systems? And on another front\, how can pulsar neutron stars be spheres smoother than 20 µm over 12 km radius and still be rigid enough to generate the starquakes believed to cause the pulsar frequency glitches? These are some of the new questions we have to answer. We also learned about the source of at least one class of Gamma Ray Bursts\, the galactic gold factories\, and more. \nRiccardo DeSalvo\n \nA lifetime instrument maker\, starting from the laser of his thesis in Pisa\, then for 15 years in High Energy Physics (CERN and Cornell Lab for Nuclear Studies)\, finally 25 years on Gravitational Waves\, on mechanical design of GW detectors (Virgo\, TAMA\, KAGRA and parts of LIGO)\, initially on seismic isolation\, then on dissipation mechanisms and thermal noise in dielectric coating mirrors\, the limiting factor of GW detection. Presently make a living developing sensors for FB\, and work on coatings and GW developments as a personal hobby\, with 3-4 students. \nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-september-2019/
LOCATION:Irvine Lecture Hall of the Chapman University\, 336 N Center St\, Orange\, CA\, 92866\, United States
CATEGORIES:General Meetings
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190809T193000
DTEND;TZID=America/Los_Angeles:20190809T213000
DTSTAMP:20260406T061157
CREATED:20190718T072053Z
LAST-MODIFIED:20200604T160603Z
UID:10000936-1565379000-1565386200@www.ocastronomers.org
SUMMARY:General Meeting - August 2019
DESCRIPTION:Investigating the Mysteries of Exploding Stars \nHubble Space Telescope image of supernova 1994D in galaxy NGC 4526. \nSupernovae are cosmic explosions where a single star can suddenly become as bright as a billion stars combined. Even though supernovae are crucial to the Universe in many ways\, such as impacting the evolution of galaxies and producing the elements necessary for life\, many mysteries remain. How do stars die? Which stars are exploding? What powers these fantastic events? Dr. Piro will describe how astrophysicists are combining clues from observations with theoretical modeling to finally address these puzzles. And just like with any good mystery\, often the answers lead to even more questions. \n \nDr. Anthony Piro is a Staff Member at the Carnegie Observatories in Pasadena. His research is focused on theoretical astrophysics with a broad interest in topics involving compact objects\, astrophysical explosions\, accretion flows\, and stellar dynamics. Dr. Piro was also the Carnegie leader of the team of astronomers first to discover the radioactive glow of a neutron star merger. He has won a number of awards for this work\, including being named a Scialog Fellow by the Research Corporation for Science Advancement\, and his discoveries have been featured in the popular press\, such as the New York Times\, CNN\, and National Geographic. \nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-august-2019/
CATEGORIES:General Meetings
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190712T073000
DTEND;TZID=America/Los_Angeles:20190712T213000
DTSTAMP:20260406T061157
CREATED:20190622T165941Z
LAST-MODIFIED:20200604T160640Z
UID:10000891-1562916600-1562967000@www.ocastronomers.org
SUMMARY:General Meeting - July 2019
DESCRIPTION:From the big bang to the empty end – the universe from the point of view of modern cosmology \n \nThe scientific view point on our Universe has gone through a major transformation in the last decades. In my talk\, I will talk about the knows but also the major unknowns we have. My main focus will be on the observations that lead to our current understanding. \nSimon Birrer \n \nSimon Birrer is a Postdoctoral Researcher at the University of California\, Los Angeles (UCLA) in the department of Physics and Astronomy. Before joining UCLA\, he received his PhD from ETH Zurich in the cosmology research group. Birrer’s research focus on the mysteries of dark matter and dark energy. He is an expert in using strong gravitational lensing\, the bending in space-time that lead to strong distortions and multiple appearance of the same source\, to probe fundamental physics questions on cosmological scales. Birrer works in the interface between the exquisite data sets available on one side and the fundamental theory predictions on the other side. \nhttp://www.astro.ucla.edu/~sibirrer/ \n“What’s Up?” in this month will be presented by Chris Butler from OCA. \nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-july-2019/
LOCATION:Irvine Lecture Hall of the Chapman University\, 336 N Center St\, Orange\, CA\, 92866\, United States
CATEGORIES:General Meetings
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190614T193000
DTEND;TZID=America/Los_Angeles:20190614T213000
DTSTAMP:20260406T061157
CREATED:20190529T214640Z
LAST-MODIFIED:20200604T160720Z
UID:10000871-1560540600-1560547800@www.ocastronomers.org
SUMMARY:General Meeting - June 2019
DESCRIPTION:Exoplanets: Finding Life in the Galaxy \nJoin Dr. Zellem\, a planetary astronomer at NASA’s Jet Propulsion Laboratory\, as he discusses how scientists find and characterize exoplanets\, planets outside of our Solar System\, with the ultimate goal of finding extraterrestrial life. \n \nRobert Zellem \n \nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-june-2019/
LOCATION:Irvine Lecture Hall of the Chapman University\, 336 N Center St\, Orange\, CA\, 92866\, United States
CATEGORIES:General Meetings
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