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

RAS Star Party

Quick Info About Monthly RAS Star Parties at GMARS

GMARS, or the Goat Mountain Astronomical Research Station, is the RAS's dark sky site and it's where we have most of our star parties. Below is some basic information about the site. use the links above for more detailed info.

    A crowd gathers around Capella, the RAS's 22-inch Newtonian telescope at GMARS
  • Location:
    34° 17' 26.33" N, 116° 23' 01.77" W | Map

  • Elevation:
    2,937 feet at the center of the telescope field

  • Phone Number:
    (760) 364-1952

    Please note that the above phone number is for the dark-sky site only. It is typically answered during scheduled star party weekends only. Please see the Contact Us page for further information on contacting the club regarding general business.

  • Remember, you don't have to be an RAS member, or own a telescope to attend our star parties. Member and club telescopes will be available for public viewing. There is never a cost involved when viewing the sky with the RAS at GMARS. Our members and friends will be happy to show you the wonders of the universe—free of charge.

  • If you are not a regular visitor to GMARS, it is highly recommended that you attempt to familiarize yourself with the location and site prior to arrival using this web site, maps, Google Earth, the links above, and other resources available to you. We also highly recommend that you do your best to arrive during daylight hours. If you've never been to GMARS, locating the property can be difficult in the dark.

  • When you arrive at the site it is critical that you stay on developed areas where the sand has been compacted. All other sand is very soft.

  • Using the concrete pads: See the Pad Use Rules for information about using the concrete pads and AC power in the telescope field.

  • The site has water and electricity. THERE ARE NO RV HOOKUPS! ABSOLUTELY NO PLUGGING IN OR DUMPING! Electrical outlets are for telescope mounts, laptops and other SMALL electronics.

  • Tent camping is permitted on the property.

  • Driving time from the Riverside area is about 1.5 - 2 hours depending on traffic and your specific starting point.