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

Next Virtual Club Meeting

Saturday, February 19th

RAS 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.

For the foreseeable future, we are continuing to hold virtual meetings via WebEx. Information to join will be provided approximately 3-7 days prior to the next meeting.

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 6/2022!)

MORE INFO >

Calendar of events for the Riverside Astronomical Society
Follow the best astronomy club in southern California, the Riverside Astronomical Society!


Quick links for browsing your way through RivAstro.org—The RAS Website—and getting to other sites

Next New Moon Weekend at GMARS

January 28th – 30th

As of right now, the houses at GMARS will likely be open and available for use. While we are not planning any star party activities, you can still visit GMARS and set up your equipment on any unused concrete pad. Keep in mind that this is the coldest time of the year in the desert with night time temps often dipping into the 20s or even the teens!

🌵 🥶 🌚 ⭐ 🔭

We are still being cautious and following CDC guidelines for gathering and mask-wearing. It's important that we remain vigilant about these precautions and help keep each other healthy.

The Double Star Cluster in Perseus by Glenn Diekmann.

The Double Star Cluster in Perseus by Glenn Diekmann. Click the image for a larger version.

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.