RFO Logo

Donate / Subscribe / Volunteer

Coming Events

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

Star Parties

Saturday, August 11

Solar Viewing 11am
Star Party 8pm


Sunday, August 12

Perseid Meteor Shower
Veiwing begins 9pm


What's Up

Thursday, August 9, 8pm

What's Up is a limited-ticket event. This session will focus on Saturn (and, much later, Mars), the Summer Triangle and the Ring, Trifis and Veil nebulae. For tickets and more information, visit Brown Paper Tickets.

Focus on the Moon

Wednesday, August 22, 8pm

Focus on the Moon is a limited ticket event. An in-depth presentation about our nearest cosmic neighbor is followed by viewing with RFO's three main telescopes. The general public is invited to purchase tickets via 
Brown Paper Tickets.


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

Please refresh your browser to update chart.
Click on chart for detailed explanation.

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!