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X-WR-CALDESC:Events for Orange County Astronomers
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20241004T193000
DTEND;TZID=America/Los_Angeles:20241004T213000
DTSTAMP:20260414T174519
CREATED:20240719T232222Z
LAST-MODIFIED:20240719T232222Z
UID:10001607-1728070200-1728077400@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: 155
URL:https://www.ocastronomers.org/calendar/online-beginners-class-21/
LOCATION:Online
CATEGORIES:Beginner's Class
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20241011T193000
DTEND;TZID=America/Los_Angeles:20241011T213000
DTSTAMP:20260414T174519
CREATED:20240126T173727Z
LAST-MODIFIED:20240128T205110Z
UID:10001403-1728675000-1728682200@www.ocastronomers.org
SUMMARY:General Meeting – October 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 inperson from the Chapman University’s campus.\n\n  \n  \nDirect Multipixel Imaging and\n  \nSpectroscopy of Exoplanets\n  \nwith a Mission to the Focal Region of\n  \nthe Solar Gravitational Lens\n  \n \n  \nNature has presented us with a very powerful “instrument” that we are yet to explore and put to use. This instrument is the Solar Gravitational Lens (SGL)\, which results from the ability of the gravitational field of the Sun to focus light from faint\, distant targets. In the near future\, a modest telescope with a coronagraph could operate in the focal region of the SGL and\, using enormous amplification of the Lens\, it could yield multipixel images of exoplanets.  A meter-class telescope operating at the focal region of the SGL could yield ~(450×450)-pixel images of an “Earth 2.0” at distances up to 100 light years with spatial resolution high enough to see its surface features and to determine and study the signs of habitability. We discuss the imaging properties of the SGL and introduce a mission concept to the SGL focal region that could provide us with direct\, high-resolution images and spectroscopy of a potentially habitable Earth-like exoplanet. We address aspects of mission design and spacecraft requirements\, as well as capabilities needed to fly this mission in the next two decades. We rely on solar sailing propulsion which\, when combined with rideshare to high Earth orbit and the use of smallsat architecture components\, is the key technology that may allow us to reach high solar system transit velocities at a dramatic reduction in mission costs and lead time. With the currently available sail materials\, components\, and instruments we can fly practical missions with speeds of up to 7 AU/year – twice that of the current speed record holder – Voyager 1.  With the sail materials that are being developed\, smallsat velocities up to 20-25 AU/year will be reachable in 5-7 years. Benefiting from this progress\, the “Sundiver” concept is new and exciting; it offers breakthrough capabilities for which the science community has been waiting for decades. We discuss the Sundiver sailcraft\, enabling technology\, instruments and unique science opportunities offered by small sailcraft placed on fast interplanetary trajectories – ultimately reaching the SGL’s focal region. \nFor background\, please check: https://www.youtube.com/watch?v=NQFqDKRAROI and https://arxiv.org/abs/2303.14917 \n  \n \n  \nSlava G. Turyshev is an astrophysicist at the NASA Jet Propulsion Laboratory (JPL)\, California Institute of Technology and a professor at the Physics and Astronomy Department of the University of California\, Los Angeles (UCLA).  Dr. Turyshev earned his M.S. in physics (with honors) and a PhD in quantum field theory from the Lomonosov Moscow State University\, Russia in 1987 and 1990\, correspondingly.  In 2008\, he earned the Doctor of Science degree (Habilitation) in astrophysics from the same university.  His primary research areas include gravitational and fundamental physics in space\, research in relativistic astrophysics\, astronomy\, and planetary science.  He is an expert in high-precision spacecraft navigation\, solar system dynamics\, satellite and lunar laser ranging\, astrometry\, and related technology efforts. Dr. Turyshev served as the NASA Project Scientist on the CNES/ESA Microscope mission (2016-2020); JPL Project Scientist for the Advanced Lunar Laser Ranging Facility at the Table Mountain Observatory\, CA (2015-ongoing); Principal Investigator on the investigation of the Pioneer Anomaly (2003-2012).  Recently\, he was the Principal Investigator on the 2020 NIAC Phase III effort on the mission concept studies to use the solar gravitation lens (SGL) for multipixel imaging and spectroscopy of exoplanets (2017-2022).  He has published over 220 papers\, 2 books.  Dr. Turyshev is a member of the International Academy of Astronautics. \nViews: 155
URL:https://www.ocastronomers.org/calendar/general-meeting-2024-10/
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:20241012T220000
DTEND;TZID=America/Los_Angeles:20241012T233000
DTSTAMP:20260414T174519
CREATED:20240512T191154Z
LAST-MODIFIED:20240512T192808Z
UID:10001539-1728770400-1728775800@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: 155
URL:https://www.ocastronomers.org/calendar/open-spiral-bar-2-2/2024-10-12/
LOCATION:Online
CATEGORIES:Meeting After the Meeting
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20241018T190000
DTEND;TZID=America/Los_Angeles:20241018T210000
DTSTAMP:20260414T174519
CREATED:20240826T011307Z
LAST-MODIFIED:20241220T053855Z
UID:10001350-1729278000-1729285200@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\, Building 40\, Astronomy House. Please contact the ASIG chair for details at mark@ocastronomers.org . \nViews: 155
URL:https://www.ocastronomers.org/calendar/oca-astrophysics-sig-meeting-3-2/2024-10-18/
LOCATION:Orange Coast College\, Building 40\, Astronomy House\, Merrimac Way\, Costa Mesa\, CA\, 92626\, United States
CATEGORIES:SIG Meetings
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20241024T200000
DTEND;TZID=America/Los_Angeles:20241024T213000
DTSTAMP:20260414T174519
CREATED:20240904T212208Z
LAST-MODIFIED:20240904T212208Z
UID:10001627-1729800000-1729805400@www.ocastronomers.org
SUMMARY:Private Outreach- Springbrook Elementary School\, Irvine
DESCRIPTION:Views: 155
URL:https://www.ocastronomers.org/calendar/private-outreach-springbrook-elementary-school-irvine/
LOCATION:Springbrook Elementary School\, 2700 Seiler Drive\, Naperville\, IL\, 60565\, United States
ORGANIZER;CN="Keisha  Hay":MAILTO:keishahay3@gmail.com
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