Riverside Astronomical Society—Outreach, star parties, dark sky site, and you!
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Membership in the Riverside Astronomical Society

Why Join Us?

For over half a century, the Riverside Astronomical Society has been bringing the joy of astronomy to southern California. It's our motto, our tagline, our mantra, and we work hard to live up to it. Become a member today to help us spread the word about the importance of astronomy, science, education, fighting light pollution, and being active in your community. Attend star parties, get into astrophotography, learn the sky, and make new friends!

The RAS is a 501(c)(3) non-profit corporation.


The RAS's Prime Focus Newsletter
Click here for a sample!

Benefits of Membership

  • First and foremost, you can help one of the best-known astronomy clubs in California spread the joy of astronomy throughout the community!

  • Members in good standing may apply for an observatory or private pad lease at GMARS, our dark sky site.

  • Receive our extraordinary digital monthly newsletter, Prime Focus. It's packed with member-contributed articles, updates on outreach events, club history, a monthly star chart, a member astrophoto gallery, and much more! And it's free with membership.



Membership Rates

New Membership1
Individual: $20 ($40 when renewing)
Family: $25 ($50 when renewing)
Student (full-time2): $20 ($20 when renewing)

Patron Membership
Bronze: $100
Silver: $200
Gold: $300

If you have any questions about joining the club, contact our .


While we'd love to have you as a member, we also want to remind you that our monthly star parties and monthly meetings are always open to the general public. Membership is not required.

1 A New Member is one who has not been a dues-paying member of the Riverside Astronomical Society during the previous two membership cycles. The RAS membership renewal cycle begins in June of each year. New members who join the RAS in March, April, May or June of a given year will have their membership extended through June of the next calendar year. For example, if you join the RAS in March 2019, your paid membership fee covers you through June 2020. If you decide to continue your membership, regular renewal rates will apply as of the following July.

2 We classify a full-time student as one who is devoting 20+ hours per week to a formal education program.