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Coming Events

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


Star Party

Saturday, June 25

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

Details

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RFO Yard Sale

Saturday, June 25, 11am-3pm

Telescopes, telescope parts, eyepieces, tripods and miscellaneious accessories in various states of repair. Following is an inventory in three sections:

Telescopes, Tripods.pdf
Eyepieces, Barlow, Filters.pdf
Miscellaneous.pdf


The sale will be held in the parking lot in front of the Observatory. For more information, contact Greg Reynolds at yardsale@rfo.org.
Solar observing will be occurring at the same time.
Bring your friends!
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Focus Nights

FOCUS ON THE MOON
Tue. June 14, 7:30pm

Our new series explores a single topic with a
presentation and plenty of time at the eyepiece.
Details

Night Sky Classes

SUMMER SERIES
Tuesdays:

May 31, Jun. 7, Jun. 28,
Jul. 5, Aug. 2, Aug. 30

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

New Docent Training

Begins Sept. 7, 7pm
Learn to be a docent at RFO
Details

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It's Here!
Our new 40"-diameter Telescope!
A new 40"-diameter telescope replaces our
previous 24" telescope. In astronomy, bigger is better, and our team designed the biggest telescope that would fit. And...no more ladder climbing! The 40" is the largest publicly-accessible optical telescope in California. Our "Project 40" blog details the design, mirror grinding and construction, done entirely by RFO volunteers! See our Telescopes page for technical details.

Here's a photo of it in place prior to enclosing the frame. See that mirror? It's a big, big light bucket!




A new home is being sought for the 24" scope. $10,000 or best offer. Contact mhillestad at rfo.org for details.

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"Before Telescopes"
From Stonehenge to Galileo

A new series of
public presentations on the History of Astronomy, each lecture focusing on a different point in history.

Exploring what early astronomers learned without telescopes—just sharp eyes and sharp minds— is a good way to understand the basics of observational astronomy.

Presentations are given free during public
Star Parties

 

Rent an
Observatory
?

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

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Weather Forecast

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Sugarloaf Ridge
State Park

"Team Sugarloaf" operates Sugarloaf Ridge,
including the campground.
Team Sugarloaf is a unique partnership of five nonprofit organizations that have 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!

 

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