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

RAS Annual Holiday Party!

Saturday, December 1st

Meet us in the Sierra Vista Chapel at La Sierra University for our annual holiday party festivities!

  • 5:00PM: Arrive a bit early to help us set up.
  • 6:00PM-ish: Party starts and dinner is served!
  • Bring: Dessert and/or a doorprize (optional, of course)

Nightfall 2018


November 1-4, 2018

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!)

MORE INFO >

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

Nightfall Star Party!

November 1st thru 4th

Our next star party is at the Nightfall Star Party & Imaging Conference in Borrego Springs.

Nightfall Website

The GMARS telescope field will be available should you wish to party with the stars there instead. Please keep in mind that the house may not be open as most will be attending Nightfall.

Lightning makes GMARS look like it's bathed in daylight!

A late-season storm (related to a Pacific hurricane rather than the typical summer monsoon) passed through Landers and much of Southern California on October 12/13. Lightning illuminated GMARS on and off for about 3 hours. Note the time of the photo is a little after midnight! Click the image for a 1600x900 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.