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X-WR-CALDESC:Events for Orange County Astronomers
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240820T223000
DTEND;TZID=America/Los_Angeles:20240821T000000
DTSTAMP:20260407T095404
CREATED:20240611T011430Z
LAST-MODIFIED:20240611T011430Z
UID:10001600-1724193000-1724198400@www.ocastronomers.org
SUMMARY:OCA Outreach - Crystal Cove Grunion Run
DESCRIPTION:The biggest drawback is a moon that is one day past full. I inquired about new moon dates\, but Erin said that her schedule for those dates is full. \nSome of the northern and eastern sky is blocked off by a nearby bluff\, but\, in a kind of exchange\, the whole southern horizon is wide open\, offering people a view of targets rarely seen from Orange County. Polaris should be visible\, although it is fairly close; the northern horizon is at an elevation of about 29 degrees. And\, if you get there early enough and are able to align your scope before the guests begin arriving\, you may be able to witness the grunion run itself. We will be only about 100 feet from the high-water mark. \nViews: 1
URL:https://www.ocastronomers.org/calendar/oca-outreach-crystal-cove-grunion-run/
LOCATION:Cottage 21\, Los Trancos Beach\, Crystal Cove State Park\, Newport Coast\, 92651\, United States
ORGANIZER;CN="Erin Andreatta":MAILTO:erina@crystalcove.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240816T190000
DTEND;TZID=America/Los_Angeles:20240816T210000
DTSTAMP:20260407T095404
CREATED:20240826T012857Z
LAST-MODIFIED:20240826T012858Z
UID:10001348-1723834800-1723842000@www.ocastronomers.org
SUMMARY:OCA Astrophysics SIG Meeting
DESCRIPTION:The monthly meeting of the Astrophysics Special Interest Group is at 7:00 PM every third Friday of the month at Orange Coast College\, Astronomy House. Please contact the ASIG chair for details at mark@ocastronomers.org . \nViews: 1
URL:https://www.ocastronomers.org/calendar/oca-astrophysics-sig-meeting-3-3/
LOCATION:Orange Coast College\, Building 40\, Astronomy House\, Merrimac Way\, Costa Mesa\, CA\, 92626\, United States
CATEGORIES:SIG Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240810T220000
DTEND;TZID=America/Los_Angeles:20240810T233000
DTSTAMP:20260407T095404
CREATED:20240512T191154Z
LAST-MODIFIED:20240512T192808Z
UID:10001537-1723327200-1723332600@www.ocastronomers.org
SUMMARY:Open Spiral Bar
DESCRIPTION:This is a free and open to the public online event. \nJoin Zoom\n  \nCome and socialize with your fellow astronomy enthusiasts face-to-face virtually!\nBring your latest astrophotography\, mini-presentation\, questions or none and your own refreshments. \n \nViews: 1
URL:https://www.ocastronomers.org/calendar/open-spiral-bar-2-2/2024-08-10/
LOCATION:Online
CATEGORIES:Meeting After the Meeting
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240809T193000
DTEND;TZID=America/Los_Angeles:20240809T213000
DTSTAMP:20260407T095404
CREATED:20240626T125144Z
LAST-MODIFIED:20240626T125355Z
UID:10001602-1723231800-1723239000@www.ocastronomers.org
SUMMARY:General Meeting – August 2024
DESCRIPTION:This is a free and open to the public hybrid event\, held both inperson and online.\nDue to the newly effective insurance requirements\, we regret that we can not allow people under 18 on the Chapman Campus\, they are welcome to attend online.\n Join Zoom\n\nThis meeting’s speaker will present online from Tucson\, AZ.\n  \nThe Dynamic Eclipse Broadcast Initiative\,\n  \nand follow up projects!\n  \n \n  \nThe Dynamic Eclipse Broadcast (DEB) Initiative was a citizen science project for the 2024 total solar eclipse which transited North America on 8 April 2024. Nearly 400 citizen volunteers observed the eclipse with a set of standard equipment from about 70 location both inside and outside the path of totality. During the partial eclipse phases\, each site uploaded a processed solar image at a cadence of 1 per minute to our web page. For those sites located in the path of totality\, the volunteers collected a set of 5 different exposures every 5 seconds and then uploaded this data to our central repository. These coronal images are currently being processed with the goal of measuring the acceleration of coronal plasma in the inner corona. \nThe organization and training of the DEB volunteers\, their experiences on the day of the eclipse\, and the current status of the data analysis will be discussed. In addition\, the DEB Initiative follow-up projects which explore white light solar flares\, variable stars and asteroid observations will be discussed with the aim of inspiring more people to join our volunteer community. \n \nMatt Penn became interested in astronomy when his parents bought a 3″ Newtonian telescope for him while he was in 6th grade. While getting his undergraduate degree in astronomy at Caltech\, Penn did his senior research project using solar oscillations data and began a career in solar physics research. After getting his PhD from the University of Hawaii in 1992\, Penn worked with dozens of students\, published more than 70 peer-reviewed research papers and developed a citizen science project for the 2017 total solar eclipse. Leaving the research field in 2018\, Penn stayed with his family in Tucson AZ and is currently an electro-optical engineer. He holds two patents in the field of image processing. Penn continues to publish research papers in the field of astronomy as a hobby\, and enjoys hiking and travel. \n  \nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-2024-08/
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:20240803T170000
DTEND;TZID=America/Los_Angeles:20240803T190000
DTSTAMP:20260407T095404
CREATED:20240709T233426Z
LAST-MODIFIED:20240731T011008Z
UID:10001604-1722704400-1722711600@www.ocastronomers.org
SUMMARY:Cancelled - Star-B-Que!!!
DESCRIPTION:The star party and Star B Que are cancelled due to fire and mandatory evacuation order. Please do not try to drive to star party Any question please contact any board member. \nThe August 3rd star party is also the annual Star-B-Que\,which is a pot-luck dinner and gathering in front of the OCA Observatory at Anza. It is open to all members and their guests. Please bring something to share with your fellow astronomers and chair to sit on and join us in front of the club observatory. Come on up around 5pm\, sunset is at 7:49pm. Enjoy some food and the company of your fellow astronomers. Any questions contact any board member. \nSee you all there…… \nViews: 1
URL:https://www.ocastronomers.org/calendar/star-b-que/
LOCATION:CA
CATEGORIES:Star Parties
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240802T193000
DTEND;TZID=America/Los_Angeles:20240802T213000
DTSTAMP:20260407T095404
CREATED:20240130T012106Z
LAST-MODIFIED:20240130T012106Z
UID:10001411-1722627000-1722634200@www.ocastronomers.org
SUMMARY:In-person Beginner's Class
DESCRIPTION:This is a free and open to the public event (in person event only) \nThe 6th session of the Beginners Astronomy Class covers the basics of astrophotography\, covering different types of imaging\, how different types of cameras are used for this kind of photography\, and other equipment and considerations for taking a good picture.\nThis session is taught by Kyle Coker\, who is active in the club’s AstroImaging special interest group. \nFree and open to the public as well as members of OCA. \nFor details\, please visit here and download the sample information PDF package. \nViews: 1
URL:https://www.ocastronomers.org/calendar/in-person-beginners-class-2/
LOCATION:Orange Coast College\, Building 40\, Astronomy House\, Merrimac Way\, Costa Mesa\, CA\, 92626\, United States
CATEGORIES:Beginner's Class
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240728T113000
DTEND;TZID=America/Los_Angeles:20240728T140000
DTSTAMP:20260407T095404
CREATED:20240527T190839Z
LAST-MODIFIED:20240527T190839Z
UID:10001596-1722166200-1722175200@www.ocastronomers.org
SUMMARY:OCA Board Meeting
DESCRIPTION:The OCA Board will be having their next board meeting on July 28\, 2024 at 11:30am via zoom. Current members may attend\, contact Alan Smallbone the OCA secretary for a link. \n  \nViews: 1
URL:https://www.ocastronomers.org/calendar/oca-board-meeting-24/
LOCATION:Online
CATEGORIES:Board Meeting
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240719T190000
DTEND;TZID=America/Los_Angeles:20240719T210000
DTSTAMP:20260407T095404
CREATED:20230227T030024Z
LAST-MODIFIED:20240128T205509Z
UID:10001347-1721415600-1721422800@www.ocastronomers.org
SUMMARY:OCA Astrophysics SIG Meeting
DESCRIPTION:The monthly meeting of the Astrophysics Special Interest Group is at 7:00 PM every third Friday of the month at the Heritage Museum of Orange County. Please contact the ASIG chair for details at mark@ocastronomers.org . \nViews: 1
URL:https://www.ocastronomers.org/calendar/oca-astrophysics-sig-meeting-3/2024-07-19/
LOCATION:Orange Coast College\, Building 40\, Astronomy House\, Merrimac Way\, Costa Mesa\, CA\, 92626\, United States
CATEGORIES:SIG Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240713T220000
DTEND;TZID=America/Los_Angeles:20240713T233000
DTSTAMP:20260407T095404
CREATED:20240512T191154Z
LAST-MODIFIED:20240512T192808Z
UID:10001478-1720908000-1720913400@www.ocastronomers.org
SUMMARY:Open Spiral Bar
DESCRIPTION:This is a free and open to the public online event. \nJoin Zoom\n  \nCome and socialize with your fellow astronomy enthusiasts face-to-face virtually!\nBring your latest astrophotography\, mini-presentation\, questions or none and your own refreshments. \n \nViews: 1
URL:https://www.ocastronomers.org/calendar/open-spiral-bar-2-2/2024-07-13/
LOCATION:Online
CATEGORIES:Meeting After the Meeting
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240712T193000
DTEND;TZID=America/Los_Angeles:20240712T213000
DTSTAMP:20260407T095404
CREATED:20240517T201120Z
LAST-MODIFIED:20240518T172519Z
UID:10001595-1720812600-1720819800@www.ocastronomers.org
SUMMARY:General Meeting – July 2024
DESCRIPTION:This is a free and open to the public hybrid event\, held both inperson and online.\nDue to the newly effective insurance requirements\, we regret that we can not allow people under 18 on the Chapman Campus\, they are welcome to attend online.\n Join Zoom\n\nThis meeting’s speaker will present online from Chicago.\n  \nWhat Cleaning the\n  \nInternational Space Station\n  \nCan Teach Us About a\n  \nHuman Health Crisis on Earth\n  \n \n  \nThe spread of antimicrobial resistance depends on many factors\, including previous exposure of microorganisms to antimicrobial disinfectants. Antimicrobial resistance in the environment ultimately translates into a human health risk. While antimicrobial chemical disinfection is used to prevent infection by pathogenic organisms\, it can inadvertently select for antimicrobial resistance. Disinfectants are not only used in hospitals and homes on Earth\, but also on the International Space Station (ISS). \nTo protect crew health\, cleaning the ISS primarily using a disinfectant containing the quaternary ammonium compound benzalkonium chloride (BAC) has been done for decades. BAC is not only found in disinfectants\, but a range of products from consumer antibacterial hand soap to dryer sheets. Due to its widespread use\, BAC has been detected throughout the indoor and natural environment\, where it has been linked to antimicrobial resistance. BAC use on Earth has increased dramatically in the past few years\, so findings on the ISS may also be indicative of changes in our Earth-based indoor microbiomes. To investigate the relationship between BAC disinfectant use and antimicrobial resistance\, Staphylococcus spp. isolates collected between 2009 and 2015 from the ISS were examined. Whole genome sequencing identified multiple BAC resistance genes in addition to resistance to other compounds. \nThis work highlights the importance of considering the long-term impact of antimicrobial disinfection when selecting cleaning products. Additionally\, the benefits of specific products to human health must be weighed against their ability to select for resistance and the long-term risk that then emerges. Examining a range of Staphylococcus spp. isolates for resistance markers has given us a greater understanding of how tolerance varies with specific BAC genes in the indoor environment. Additionally\, the ISS environment and long-term BAC disinfection seems to select for BAC tolerance. Further work is needed to understand if there are differences between the frequency of BAC resistance genes in the ISS compared to Earth-based environments. \nhere are links to a formal research paper about resistance on the International Space Station written by a previous lab member (for those interested in scientific journal style writing on this topic)\, and a more informal op-ed on use of cleaning chemicals and its relationship to antibiotic resistance. \n  \n \n  \nOlivia is an environmental engineer interested in fundamental rules that govern how microbes adapt to their environment. She received her Bachelor’s degree in Civil and Environmental Engineering from University of Maryland\, College Park where her research focused on optimizing developments to minimize stormwater flooding. She then moved to England to study in the Environmental Engineering Master’s degree program at Imperial College London. Her dissertation focused on barriers to the implementation of novel microbial wastewater treatment in Serbia. After completing her Master’s\, she spent a year working in industry as a consultant engineer for drinking water projects before returning to academia. Olivia recently completed her PhD in Environmental Engineering at Northwestern University in the Hartmann Lab where her research focused on how disinfectant use impacts antimicrobial resistance and strategies to combat the resistance trend. \n  \n  \nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-2024-07/
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:20240705T193000
DTEND;TZID=America/Los_Angeles:20240705T213000
DTSTAMP:20260407T095404
CREATED:20240130T011941Z
LAST-MODIFIED:20240130T011941Z
UID:10001409-1720207800-1720215000@www.ocastronomers.org
SUMMARY:Beginner's Class In-person event
DESCRIPTION:This is a free and open to the public  event (In-person event only). \nThe 5th session of the Beginners Astronomy Class is the “How to Use Your Telescope”. \nIf you have a telescope and would like some help learning to set it up and use it\, attend this Hands-on class. \nFor details\, please visit here and download the sample information PDF package. \nViews: 1
URL:https://www.ocastronomers.org/calendar/beginners-class-in-person-event-3/
LOCATION:Orange Coast College\, Building 40\, Astronomy House\, Merrimac Way\, Costa Mesa\, CA\, 92626\, United States
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240621T210000
DTEND;TZID=America/Los_Angeles:20240621T223000
DTSTAMP:20260407T095404
CREATED:20240610T192518Z
LAST-MODIFIED:20240610T192518Z
UID:10001597-1719003600-1719009000@www.ocastronomers.org
SUMMARY:Outreach - Brea Girl Scouts Campout
DESCRIPTION:Views: 1
URL:https://www.ocastronomers.org/calendar/outreach-brea-girl-scouts-campout/
LOCATION:Brea CIty Hall Park\, 401 S. Brea Blvd.\, Brea\, 92823\, United States
ORGANIZER;CN="Jill Patterson":MAILTO:jillpatterson@yahoo.com
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240621T190000
DTEND;TZID=America/Los_Angeles:20240621T210000
DTSTAMP:20260407T095404
CREATED:20230227T030024Z
LAST-MODIFIED:20240128T205509Z
UID:10001346-1718996400-1719003600@www.ocastronomers.org
SUMMARY:OCA Astrophysics SIG Meeting
DESCRIPTION:The monthly meeting of the Astrophysics Special Interest Group is at 7:00 PM every third Friday of the month at the Heritage Museum of Orange County. Please contact the ASIG chair for details at mark@ocastronomers.org . \nViews: 1
URL:https://www.ocastronomers.org/calendar/oca-astrophysics-sig-meeting-3/2024-06-21/
LOCATION:Orange Coast College\, Building 40\, Astronomy House\, Merrimac Way\, Costa Mesa\, CA\, 92626\, United States
CATEGORIES:SIG Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240615T220000
DTEND;TZID=America/Los_Angeles:20240615T233000
DTSTAMP:20260407T095404
CREATED:20240512T190902Z
LAST-MODIFIED:20240512T190903Z
UID:10001417-1718488800-1718494200@www.ocastronomers.org
SUMMARY:Open Spiral Bar
DESCRIPTION:This is a free and open to the public online event. \nJoin Zoom\n  \nCome and socialize with your fellow astronomy enthusiasts face-to-face virtually!\nBring your latest astrophotography\, mini-presentation\, questions or none and your own refreshments. \n \nViews: 1
URL:https://www.ocastronomers.org/calendar/open-spiral-bar-2/
LOCATION:Online
CATEGORIES:Meeting After the Meeting
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240614T193000
DTEND;TZID=America/Los_Angeles:20240614T213000
DTSTAMP:20260407T095404
CREATED:20240510T190914Z
LAST-MODIFIED:20240510T190914Z
UID:10001477-1718393400-1718400600@www.ocastronomers.org
SUMMARY:General Meeting – June 2024
DESCRIPTION:This is a free and open to the public hybrid event\, held both inperson and online.\nDue to the newly effective insurance requirements\, we regret that we can not allow people under 18 on the Chapman Campus\, they are welcome to attend online.\n Join Zoom\n\nThis meeting’s speaker will present online from Washington\, DC.\n\n  \n  \nExtreme Astronomy\n  \n \n\n  \nThis program examines telescopes\, space travel\, planets\, moons\, mountains\, stars\, galaxies\, clusters\, and black holes in the quest to find the largest\, highest\, closest\, furthest\, hottest\, coldest\, most massive\, brightest\, and darkest among these various objects and also many firsts among astronomical discoveries and accomplishments. \n \n  \nCharles E. Allen III (“Chuck”) \nChuck is current League Vice-President and a past League President (1998-2002). A League Lifetime Member\, he founded the National Young Astronomer Award in 1991\, received the G. R. Wright Award for service in 1998\, holds the League’s Master Outreach Award with over 550 public programs to his credit\, and earned the League’s master observer gold progression with 43 observing programs completed. He co-chaired ALCon ’21 Virtual and currently coordinates three League Observing Programs. Chuck is past-president of the Louisville Astronomical Society and current Program Director of the Evansville Astronomical Society. He is a past judge for the Intel (now Regeneron) International Science and Engineering Fair and served as a United State Air Force officer before entering the practice of law. He’s been an amateur astronomer since age 7. \nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-2024-06/
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:20240607T193000
DTEND;TZID=America/Los_Angeles:20240607T213000
DTSTAMP:20260407T095404
CREATED:20240130T011857Z
LAST-MODIFIED:20240130T011857Z
UID:10001408-1717788600-1717795800@www.ocastronomers.org
SUMMARY:Online Beginner's Class
DESCRIPTION:This is a free and open to the public online event\, to attend please register with zoom by clicking here at or after 7:10pm. \nThe 4th session of the Beginners Astronomy Class covers the science behind the telescope. \nHow do our eyes actually perceive objects we see in the telescope and what is the physics that allows that perception. \nFor details\, please visit here and download the sample information PDF package. \nViews: 1
URL:https://www.ocastronomers.org/calendar/online-beginners-class-19/
LOCATION:Online
CATEGORIES:Beginner's Class
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240607T130000
DTEND;TZID=America/Los_Angeles:20240608T170000
DTSTAMP:20260407T095404
CREATED:20240512T190944Z
LAST-MODIFIED:20240512T191253Z
UID:10001536-1717765200-1717866000@www.ocastronomers.org
SUMMARY:Owens Valley Radio Observatory Tour
DESCRIPTION:June 7th Star Party \nJune 8th  Tour & Activities starting 1:00pm followed by a Star Party \nScience Beyond The Book \nWith Dr. Doug Millar and Cecilia Caballero \nFor more information\, please contact Dr. Millar\n \nViews: 1
URL:https://www.ocastronomers.org/calendar/ovro2024/
LOCATION:Owens Valley Radio Observatory\, 100 Leighton Lane\, Big Pine\, CA\, 93513\, United States
CATEGORIES:Extra,Outreach,Star Parties
ATTACH;FMTTYPE=image/jpeg:https://www.ocastronomers.org/wp-content/uploads/2019/01/40M-Dish-In-action-Star-Trails-OVRO-JAC-062212-650-images-at-30-sec-ea.jpg
ORGANIZER;CN="Doug Millar":MAILTO:doug@ocastronomers.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240517T190000
DTEND;TZID=America/Los_Angeles:20240517T210000
DTSTAMP:20260407T095404
CREATED:20230227T030024Z
LAST-MODIFIED:20240128T205509Z
UID:10001345-1715972400-1715979600@www.ocastronomers.org
SUMMARY:OCA Astrophysics SIG Meeting
DESCRIPTION:The monthly meeting of the Astrophysics Special Interest Group is at 7:00 PM every third Friday of the month at the Heritage Museum of Orange County. Please contact the ASIG chair for details at mark@ocastronomers.org . \nViews: 1
URL:https://www.ocastronomers.org/calendar/oca-astrophysics-sig-meeting-3/2024-05-17/
LOCATION:Orange Coast College\, Building 40\, Astronomy House\, Merrimac Way\, Costa Mesa\, CA\, 92626\, United States
CATEGORIES:SIG Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240511T220000
DTEND;TZID=America/Los_Angeles:20240511T233000
DTSTAMP:20260407T095404
CREATED:20240224T172934Z
LAST-MODIFIED:20240224T172934Z
UID:10001416-1715464800-1715470200@www.ocastronomers.org
SUMMARY:Open Spiral Bar
DESCRIPTION:This is a free and open to the public online event. \nJoin Zoom\n  \nCome and socialize with your fellow astronomy enthusiasts face-to-face virtually!\nBring your latest astrophotography\, mini-presentation\, questions or none and your own refreshments. \n \nViews: 1
URL:https://www.ocastronomers.org/calendar/open-spiral-bar/2024-05-11/
LOCATION:Online
CATEGORIES:Meeting After the Meeting
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240510T193000
DTEND;TZID=America/Los_Angeles:20240510T213000
DTSTAMP:20260407T095404
CREATED:20240422T140226Z
LAST-MODIFIED:20240422T140802Z
UID:10001476-1715369400-1715376600@www.ocastronomers.org
SUMMARY:General Meeting – May 2024
DESCRIPTION:This is a free and open to the public hybrid event\, held both inperson and online.\nDue to the newly effective insurance requirements\, we regret that we can not allow people under 18 on the Chapman Campus\, they are welcome to attend online.\n Join Zoom\n\nThis meeting’s speaker will present online from Washington\, DC.\n\n  \n  \nData Driven Discovery\n\n  \nIn Evolving Planetary Systems\n\n  \nA Mineral Informatics Approach\n  \n\n  \n  \nThe key to answering many compelling and complex questions in Earth\, planetary\, and life science lies in breaking down the barriers between scientific fields and harnessing the integrated\, multi-disciplinary power of their respective data resources. We have a unique opportunity to integrate large and rapidly expanding data resources\, to enlist powerful analytical and visualization methods\, and to answer multi-disciplinary questions that cannot be addressed by one field alone. \nRapidly expanding mineral data resources have created an opportunity to characterize changes in near-surface mineralogy through deep time and to relate these findings to the geologic and biologic evolution of our planet over the past 4.5 billion years. Data-driven studies employing advanced analytical and visualization techniques such as mineral ecology\, network analysis\, and association analysis\, allow us to begin tackling big questions in Earth\, planetary\, and biosciences\, including those related to (1) the relationships of mineral formation and preservation with large-scale geologic processes\, such supercontinent assembly\, the oxidation of Earth’s atmosphere\, and changes in ocean chemistry. (2) The abundance and likely species of as-yet undiscovered mineral\, as well as the probability of finding a mineral or mineral assemblage at any locality on Earth or another planetary body. (3) Exploring the possibility that Earth’s mineral diversity and distribution is a biosignature. (4) Characterizing the origins of all mineral species through the development of the Evolutionary System of Mineralogy – a system that will provide a framework for predicting the formational conditions of mineral species of unknown origin. (5) Lastly\, integrating across disciplines and exploring ideas that one field alone cannot fully characterize (e.g.\, how the geochemical makeup of our planet affected the emergence and evolution of life\, and\, likewise\, how life influenced chemical composition and geological processes throughout Earth history). \n \nShaunna M. Morrison is a mineralogist and planetary scientist with expertise in crystallography\, crystal chemistry\, and the application of data driven techniques. Morrison is the 4D (Deep Time Data Driven Discovery) Initiative Co-Director at the Carnegie Institution for Science’s Earth and Planets Laboratory\, former Project Manager of the Carnegie led Deep-Time Data Infrastructure (DTDI)\, a Co-Investigator of the CheMin X-ray diffraction instrument on the NASA Mars Science Laboratory (MSL) mission\, a collaborator on the NASA Astrobiology ENIGMA Project\, a Co-Investigator of the NASA Astromaterials Data System\, and a data contributor and collaborator of the RRUFF Project\, including the Mineral Evolution Database (MED)\, and the Evolutionary System of Mineralogy Database (ESMD). Morrison builds on her technical and theoretical background in crystallography\, crystal chemistry\, and martian mineralogy\, to explore new techniques in multidimensional\, multivariate analysis and visualization by employing a range of advanced analytics and machine learning techniques to better understand the complex relationships among Earth and planetary materials\, their formational environments through deep time\, and their coevolution with the biosphere\, including identifying and characterizing mineralogical signs of life. \n  \nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-2024-05/
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:20240505T113000
DTEND;TZID=America/Los_Angeles:20240505T143000
DTSTAMP:20260407T095404
CREATED:20240303T193458Z
LAST-MODIFIED:20240303T193458Z
UID:10001475-1714908600-1714919400@www.ocastronomers.org
SUMMARY:OCA Board Meeting
DESCRIPTION:May 5 at 11:30am is the next scheduled board meeting to be held via Zoom. The meeting is open to all OCA members in good standing. If you want to attend contact the Secretary\, Alan Smallbone and link will be sent for the meeting. \nViews: 1
URL:https://www.ocastronomers.org/calendar/oca-board-meeting-23/
LOCATION:Online
CATEGORIES:Board Meeting
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240503T193000
DTEND;TZID=America/Los_Angeles:20240503T213000
DTSTAMP:20260407T095404
CREATED:20240130T011805Z
LAST-MODIFIED:20240130T011805Z
UID:10001407-1714764600-1714771800@www.ocastronomers.org
SUMMARY:Online Beginner's Class
DESCRIPTION:This is a free and open to the public online event\, to attend please register with zoom by clicking here at or after 7:10pm. \nThe 3rd session of the Beginners Astronomy Class covers different methods of finding objects in the night sky.  Special topic is learning the constellations. \nFor details\, please visit here and download the sample information PDF package. \nViews: 1
URL:https://www.ocastronomers.org/calendar/online-beginners-class-18/
LOCATION:Online
CATEGORIES:Beginner's Class
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240419T190000
DTEND;TZID=America/Los_Angeles:20240419T210000
DTSTAMP:20260407T095404
CREATED:20230227T030024Z
LAST-MODIFIED:20240128T205509Z
UID:10001344-1713553200-1713560400@www.ocastronomers.org
SUMMARY:OCA Astrophysics SIG Meeting
DESCRIPTION:The monthly meeting of the Astrophysics Special Interest Group is at 7:00 PM every third Friday of the month at the Heritage Museum of Orange County. Please contact the ASIG chair for details at mark@ocastronomers.org . \nViews: 1
URL:https://www.ocastronomers.org/calendar/oca-astrophysics-sig-meeting-3/2024-04-19/
LOCATION:Orange Coast College\, Building 40\, Astronomy House\, Merrimac Way\, Costa Mesa\, CA\, 92626\, United States
CATEGORIES:SIG Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240413T220000
DTEND;TZID=America/Los_Angeles:20240413T233000
DTSTAMP:20260407T095404
CREATED:20240224T172934Z
LAST-MODIFIED:20240224T172934Z
UID:10001415-1713045600-1713051000@www.ocastronomers.org
SUMMARY:Open Spiral Bar
DESCRIPTION:This is a free and open to the public online event. \nJoin Zoom\n  \nCome and socialize with your fellow astronomy enthusiasts face-to-face virtually!\nBring your latest astrophotography\, mini-presentation\, questions or none and your own refreshments. \n \nViews: 1
URL:https://www.ocastronomers.org/calendar/open-spiral-bar/2024-04-13/
LOCATION:Online
CATEGORIES:Meeting After the Meeting
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240412T193000
DTEND;TZID=America/Los_Angeles:20240412T213000
DTSTAMP:20260407T095404
CREATED:20240112T160319Z
LAST-MODIFIED:20240325T153205Z
UID:10001401-1712950200-1712957400@www.ocastronomers.org
SUMMARY:General Meeting – April 2024
DESCRIPTION:This is a free and open to the public hybrid event\, held both inperson and online. Due to the newly effective insurance requirements\, we regret that we can not allow people under 18 on the Chapman Campus\, they are welcome to attend online.\n Join Zoom\n\nThis meeting’s speaker will present online.\n\n  \n  \nHow to Work Amateur Satellites\n  \nwith Your Handheld Radio\n\n  \n \n  \nYou do not need 100W of transmit power nor expensive antenna arrays to work the FM voice amateur satellites! Many hams already have the necessary equipment to “work the birds.” This presentation will walk you through ALL the steps needed to successfully work several ham satellites – including the International Space Station. \n  \nClint K6LCS has been a ham since 1994\, and found his niche in the hobby: working amateur satellites with minimal equipment and telling ALL about it! He has served a liaison between NASA\, the ARISS team\, and schools coordinating amateur radio contacts between the International Space Station and students (and also orchestrated a wildly successful ARISS contact). Audiences have never found his presentation slides “wordy” nor dull. Trivia questions are included throughout the session – audiences are never bored. \nFor reference materials\, Clint has created a support Web site at work-sat.com. The Web site has become a one-stop source for ALL the citations and equipment recommendations and software suggestions made in the presentation. \nProfessionally\, Clint was sales manager for ADI / Premier Communications / Pryme\, worked for a Motorola commercial two-way dealer a couple of years\, and for Ham Radio Outlet a couple more. He resides in Jurupa Valley\, California\, with his wife\, Karen\, and their new addition to the family: Huck\, a two-year-old 75-pound Lab. \n  \nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-2024-04/
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:20240405T193000
DTEND;TZID=America/Los_Angeles:20240405T213000
DTSTAMP:20260407T095404
CREATED:20240130T011710Z
LAST-MODIFIED:20240130T011710Z
UID:10001406-1712345400-1712352600@www.ocastronomers.org
SUMMARY:Online Beginner's Class
DESCRIPTION:This is a free and open to the public online event\, to attend please register with zoom by clicking here at or after 7:10pm. \nThe 2nd session of the Beginners Astronomy Class covers the different types of equipment used to observe the night sky\, including telescopes\, mounts\, eyepieces\, filters\, and advantages and disadvantages of different options. \nThis session is a must if thinking about buying a telescope. \nFor details\, please visit here and download the sample information PDF package. \nViews: 1
URL:https://www.ocastronomers.org/calendar/online-beginners-class-17/
LOCATION:Online
CATEGORIES:Beginner's Class
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240315T190000
DTEND;TZID=America/Los_Angeles:20240315T210000
DTSTAMP:20260407T095404
CREATED:20230227T030024Z
LAST-MODIFIED:20240128T205509Z
UID:10001343-1710529200-1710536400@www.ocastronomers.org
SUMMARY:OCA Astrophysics SIG Meeting
DESCRIPTION:The monthly meeting of the Astrophysics Special Interest Group is at 7:00 PM every third Friday of the month at the Heritage Museum of Orange County. Please contact the ASIG chair for details at mark@ocastronomers.org . \nViews: 1
URL:https://www.ocastronomers.org/calendar/oca-astrophysics-sig-meeting-3/2024-03-15/
LOCATION:Orange Coast College\, Building 40\, Astronomy House\, Merrimac Way\, Costa Mesa\, CA\, 92626\, United States
CATEGORIES:SIG Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240309T220000
DTEND;TZID=America/Los_Angeles:20240309T233000
DTSTAMP:20260407T095404
CREATED:20240224T172934Z
LAST-MODIFIED:20240224T172934Z
UID:10001414-1710021600-1710027000@www.ocastronomers.org
SUMMARY:Open Spiral Bar
DESCRIPTION:This is a free and open to the public online event. \nJoin Zoom\n  \nCome and socialize with your fellow astronomy enthusiasts face-to-face virtually!\nBring your latest astrophotography\, mini-presentation\, questions or none and your own refreshments. \n \nViews: 1
URL:https://www.ocastronomers.org/calendar/open-spiral-bar/2024-03-09/
LOCATION:Online
CATEGORIES:Meeting After the Meeting
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20240308T193000
DTEND;TZID=America/Los_Angeles:20240308T213000
DTSTAMP:20260407T095404
CREATED:20240203T183604Z
LAST-MODIFIED:20240203T203924Z
UID:10001412-1709926200-1709933400@www.ocastronomers.org
SUMMARY:General Meeting – March 2024
DESCRIPTION:This is a free and open to the public hybrid event\, held both inperson and online.\nDue to the newly effective insurance requirements\, we regret that we can not allow people under 18 on the Chapman Campus\, they are welcome to attend online.\n Join Zoom\n\nThis meeting’s speaker will present online from Waterloo\, Canada.\n\n  \n  \nCosmic Mirages: Seeing Dark Matter\n  \nwith Gravitational Lenses\n\n\n\n\n  \n \n  \n  \nMost of the matter in the Universe is dark matter: an elusive particle that is completely invisible. But we can “see” this matter by studying how it distorts the light from galaxies in the distant Universe\, a phenomenon called gravitational lensing. I will give a whirlwind tour of gravitational lensing’s “greatest hits” showing how it can be used as a tool to understand some of the most mysterious things in the Universe: from black holes to the “cosmic web” of dark matter that links galaxies together. \n  \n \n  \nMike Hudson received his Ph.D. from the Institute of Astronomy\, University of Cambridge in 1993 where studied the expansion of the Universe. He did post-doctoral research work at Durham University and at the University of Victoria in Canada\, where he was a National Fellow of the Canadian Institute of Theoretical Astrophysics.  In 1999\, he moved to the University of Waterloo\, where he is currently Professor. His scientific interests include the nature of dark matter and dark energy\, how the Universe expands\, and how galaxies form and evolve.  He can be found on Twitter as @MikeHudsonAstro \nViews: 1
URL:https://www.ocastronomers.org/calendar/general-meeting-2024-03/
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:20240303T103000
DTEND;TZID=America/Los_Angeles:20240303T133000
DTSTAMP:20260407T095404
CREATED:20240226T154823Z
LAST-MODIFIED:20240226T154823Z
UID:10001474-1709461800-1709472600@www.ocastronomers.org
SUMMARY:OCA Board Meeting
DESCRIPTION:March 3 at 10:30am is the next scheduled board meeting to be held via Zoom. The meeting is open to all OCA members in good standing. If you want to attend contact the Secretary\, Alan Smallbone and link will be sent for the meeting. \nViews: 1
URL:https://www.ocastronomers.org/calendar/oca-board-meeting-22/
LOCATION:Online
CATEGORIES:Board Meeting
END:VEVENT
END:VCALENDAR