Riverside Astronomical Society—Outreach, star parties, dark sky site, and you!
Next monthly meeting of the Riverside Astronomical Society

RAS Meeting

Saturday, June 2nd (Regular Monthly)

GMARS monthly meetings are your opportunity to attend free presentatons by professional astronomers, catch up on club business, and hear about the latest happenings in the night sky (sometimes the daytime sky too!). Our general meetings are always free and open to the public.

  • 5:00PM – Pre-Meeting Dinner at Red Lobster Restaurant (new location!)
  • 6:30PM – Beginner's Corner at Cossentine Hall at La Sierra University
  • 7:00PM – Monthly Meeting at Cossentine Hall at La Sierra University

RTMC 2018

RTMC Astronomy Expo
50th Anniversary!
May 24-28

Go to the RTMC Site

Attend a Riverside Astronomical Society star party at the Goat Mountain Astronomical Research Station (GMARS) in southern California's Inland Empire
Join the best astronomy club in southern California—the Riverside Astronomical Society!

Special Rates for
New Members!

  • Individual: $20
  • Family: $25
  • Student: $20

(Your membership will be valid through 6/2019!)


Calendar of events for the Riverside Astronomical Society
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Next star party of the Riverside Astronomical Society–The best astronomy club in southern California!

Next Star Parties

June 8th & 9th

NOW is the time to visit GMARS for a star party! It's not quite summer and the spring winds are dying down. Join us at GMARS for our regular monthly star party. Get your camera and tripod ready for some great Milky Way shots!

GMARS star parties start Friday afternoon/evening and wrap up on Sunday morning. Be sure to join us for the potluck Star-B-Q on Saturday afternoon (roughly 60-90 minutes before sun down). We provide the dogs, burgers and fixings. You provide a sidedish, dessert or beverages!

RTMC Astronomy Expo

May 24-28 is the 50th anniversary of the RTMC Astronomy Expo! Join RAS members and people from all over California and beyond at one of the biggest star parties on the planet. The keynote speaker is David H. Levy! Get more information here.

RTMC Astronomy Expo coming up in May!

The 50th annual RTMC Astronomy Expo is just around the corner—Memorial Day weekend!

David H. Levy, astronomer, author and comet hunter, is the keynote speaker! Register now!

RAS Calendar of Events

Ask the Outreach Director to add an event to the calendar. View larger calendar.

The scene at a GMARS Star Party. Join the Riverside Astronomical Society in Landers at our next star party! Photo by Michael Bauer.