Online Beginner’s Class

Online

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. 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 […]

General Meeting – April 2025

Irvine Lecture Hall of the Chapman University 336 N Center St, Orange, CA, United States

 Join Zoom This meeting's speaker will present inperson.   NASA’s Cold Atom Lab:   Quantum Science   and Technology Maturation   on the International Space Station   NASA’s Cold Atom Lab (CAL) launched to the International Space Station (ISS) in May 2018, and has been operating since that time as the world’s first and only […]

Event Series OCA Astrophysics SIG Meeting

OCA Astrophysics SIG Meeting

Orange Coast College, Building 40, Astronomy House Merrimac Way, Costa Mesa, CA, United States

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 .

Anza Star Party

On the Sky CA, United States

The 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.

Online Beginner’s Class

Online

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. 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 […]

OCA Board Meeting

Online

A meeting of the OCA Board to Trustees, the meeting is held online via zoom starting at 11:30am. The meeting is open to current members, please contact the club secretary to have a link sent to you for the meeting.

General Meeting – May 2025

Irvine Lecture Hall of the Chapman University 336 N Center St, Orange, CA, United States

 Join Zoom This meeting's speaker will present live from Albany, NY.   Fast Radio Bursts-Signals   from Across the Universe   This artist’s impression (not to scale) illustrates the path of the fast radio burst FRB 20220610A, from the distant galaxy where it originated all the way to Earth, in one of the Milky Way’s […]

Event Series OCA Astrophysics SIG Meeting

OCA Astrophysics SIG Meeting

Orange Coast College, Building 40, Astronomy House Merrimac Way, Costa Mesa, CA, United States

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 .