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Coming Events

(Observatory is open to the public
ONLY for scheduled events).

Star Party

Saturday, Sept. 8

Solar Viewing 11am
Star Party 8pm


Night Sky Classes

Begin Sept. 10

A series of six classes focusing on the Fall constellations and their deep-sky objects. Classes last about an hour with observing after class. For prices and more information go to our Classes page.

What's Up?

October 11, 7pm

Limited ticket event including a tour of the observatory, a classroom talk about prominent galaxies and nebulae that are viewable that night, followed by telescope observing on RFO's three large telescopes. Tickets may be purchased through Brown Paper Tickets.

New Docent Training

Begins Wed., Sept. 5, 7pm

Signups are being held now for the next training. Learn about the night sky, how to operate the telescopes and much more. See our Volunteer page for more details, and fill out the Application Form.


Want to help us keep our doors open?


RFO at night

Above: The Observatory at night. Photo by Mark Hillestad
Top right photo of Refractor Telescope by Jerry Telfer


Rent an

Yes, you can!
Treat your family, friends,
or group of up to 50 people
to a night with the stars!


Weather Forecast

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Sugarloaf Ridge
State Park

"Team Sugarloaf" operates Sugarloaf Ridge,
including the campground. Five nonprofit organizations formed a unique partnership that has worked tirelessly to keep our park open.  

Partners are: Sonoma Ecology Center; United Camps, Conferences and Retreats; Valley of the Moon Natural History Association; Sonoma County Trails Council; and Valley of the Moon Observatory Association.  

With expertise in campground operations, ecological restoration, astronomy, trails management, and volunteer recruiting and training, Team Sugarloaf is creating new opportunities for Sugarloaf Ridge and its visitors.  Visit sugarloafpark.org for more information.

Come to stargaze and camp at Sugarloaf Ridge!