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

Announcement: All RAS Public Events Postponed Until Further Notice

Due to the travel and gathering restrictions set forth by state and county health officials, we have cancelled upcoming star parties and outreach events. We may hold virtual meetings in place of meeting at La Sierra University in the meantime. Details will be emailed.

Travel to GMARS is highly discouraged and access to the houses is prohibited.

Please read this page for additional details. Stay tuned to this website and to our Facebook page for updates.

Nightfall 2020

October 15-18, 2020 ?

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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 6/2021!)

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Follow the best astronomy club in southern California, the Riverside Astronomical Society!


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

Monthly Star Party at GMARS

Postponed Until Further Notice

All RAS public activities are currently postponed. Please check this space for updates.

Full moon with clouds and joshua trees

Clouds and a full moon behind Joshua trees at GMARS.

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.