Here’s your chance to see Mercury, Venus, Jupiter, Saturn AND our Moon through the telescopes.

Make a Pocket Solar System and imagine what it would be like to live on other worlds.

Date: Saturday, 6/16/2018

Time: 8:00 PM - 11:00 PM

Location: Mount Diablo - Lower Summit Parking Lot, Summit Rd, Clayton, CA 94517

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  • Sunset Image
    Sunset: 8:33 PM
  • Waxing Crescent
  • Sky Chart - click to enlarge
    What's in the Sky this evening?

Information for Visitors:

Participate in hands-on astronomy activities followed by supervised observing through the many different telescopes of MDAS members.

Bring snacks, water, binoculars, and warm clothes. If you bring a flashlight please cover it with red material.

Please note that only Mt. Diablo Astronomy Docents may set up telescopes on Public Nights.

Location Details

Mount Diablo - Lower Summit Parking Lot
Lower Summit Parking Lot off Summit Road - almost to the top of Mount Diablo

Summit Rd

Clayton, CA 94517

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2019 Public Astronomy Schedule: Click Here

The park gates close around sunset, so be certain to arrive in plenty of time.
The temperature on the mountain can drop considerably during the evening, so dress warmly. Keep in mind that this is a state park and, as such, park rules apply, including any gate fees.
At the end of the session, visitors will be escorted off the mountain. Departure will be by way of the North Gate (this becomes Oak Grove Road in Walnut Creek once you are outside the confines of the park.)

Events are only canceled due to rain or fire hazard. Don't be put off by somewhat overcast skies. Often, when it is overcast in the late afternoon, by the time night arrives on the mountain viewing is fine.

If you would like advice on current conditions, you can usually reach a person in the South Gate kiosk until sunset at (925) 837-0904. For more information, call the Mt. Diablo "Hotline": (925) 837-2525. .
Mount Diablo Summit Visitor Center number: 925-837-6119 (10 am to 4 pm)