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

RAS Monthly Meeting

Saturday, June 10th (Regular)

  • Pre-Meeting Dinner: 5:00PM at Don José Restaurant
  • Beginner's Corner: 6:30PM at Cossentine Hall at La Sierra University
  • Monthly Meeting: 7:00PM at Cossentine Hall at La Sierra University

RTMC 2017

RTMC Astronomy Expo
May 25-29

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 6/2018!)


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

Next Star Party

May 25th thru 29th (RTMC)

Our next official star party will be held at the annual RTMC Astronomy Expo in Big Bear! Join us for the day or stay the whole weekend, and be there for the keynote presentation by Fred Espenak. He will of course be discussing the Total Solar Eclipse of 2017.

Or, if you'd prefer, GMARS will also be open over the weekend for a scaled-down star party.

Bolide or fireball at GMARS&mdash April 10, 2017

Fireball at GMARS

A bolide appeared in the sky over GMARS on April 10, 2017 at 8:58PM PDT. The All Sky Cam picked up a few frames of it. Click the image for a slightly 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.