Events
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Cerritos Library 18025 Bloomfield Ave., Cerritos, United States
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Public Outreach – Cerritos Library Astronomy Night
Cerritos Library 18025 Bloomfield Ave., Cerritos, United StatesOrange County Astronomers members are invited to bring their telescopes to the Cerritos Library to take part in the library's Astronomy Night on March 30, 2026. There should be a good crowd at the event if the skies are clear.
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Online Beginner’s Class
OnlineThis is a free and open to the public online event, to attend please register with zoom by clicking here at or after 6:40pm. The 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 […]
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General Meeting – April 2026
Irvine Lecture Hall of the Chapman University 336 N Center St, Orange, CA, United StatesJoin Zoom Free and open to the public but per our host's policy, minors (under 18) are welcome to attend as long as they are accompanied by their parent or guardian at all times. This meeting's speaker will present online. Supernovae, Dark Energy, and the Mystery of the Accelerating Universe Type […]
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OCA Astrophysics SIG Meeting
Orange Coast College, Building 40, Astronomy House Merrimac Way, Costa Mesa, CA, United StatesThe 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 .
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Anza Star Party
On the Sky CA, United StatesThe new moon weekend for the monthly star party. The Anza site is open to members and their guests only. Join other members for viewing and imaging. Contact any board member if you have any questions.
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Online Beginner’s Class
OnlineThis is a free and open to the public online event, to attend please register with zoom by clicking here at or after 6:40pm. The 3rd session of the Beginners Astronomy Class covers different methods of finding objects in the night sky. Special topic is learning the constellations. For details, please visit here and download […]
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OCA Astrophysics SIG Meeting
Orange Coast College, Building 40, Astronomy House Merrimac Way, Costa Mesa, CA, United StatesThe 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 .
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Anza Star Party
On the Sky CA, United StatesThe new moon weekend for the monthly star party. The Anza site is open to members and their guests only. Join other members for viewing and imaging. Contact any board member if you have any questions.
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Online Beginner’s Class
OnlineThis is a free and open to the public online event, to attend please register with zoom by clicking here at or after 6:40pm. The 4th session of the Beginners Astronomy Class covers the science behind the telescope. How do our eyes actually perceive objects we see in the telescope and what is the physics […]