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Coming Events

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

Star Party

Saturday, August 19

Solar: 11am-3pm
Star Party begins 8 pm


Give us your Feedback!

Fill out our Star Party Visitor Survey
and enter to win a
Private Event for your group!

Night Sky Classes


May 22, Jun. 19, Jun. 26,
Jul. 17, Jul. 24, Aug. 14

Learn about the seasonal sky, with telescope
observing after class. Details

Observing Lab

Small Group focused on a single topic,
"Star Death"
Sept. 16, 7pm


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


The Great American Eclipse

Monday, August 21, 2017
8AM to noon

RFO will be OPEN!

We'll have solar telescopes and eclipse glasses.

We'll also be OPEN at Courthouse Square,
Santa Rosa, also with
solar telescopes and eclipse glasses.

Can't join us? Watch the eclipse live from
Courthouse Square via our RFO Twitter feed:

And listen to us LIVE on KSRO!
530AM and 105.3FM

RFO thanks Shutterbug Camera for their
sponsorship of the Courthouse Square
eclipse event.

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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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!