RFO

For Detailed Information

To learn more about events
listed here, see
Star Parties
and Classes

 

Where we are:

Nestled in the hills of
Sugarloaf Ridge State Park

Longitude: West 122° 30' 28"
Latitude: North 38° 26' 18"
Elevation: 1275'

Map and Directions

 

Current sky conditions:

Call the Observatory at
(707) 833-6979
or see the
Clear Sky Chart

 

What to Wear:

Warm layers, gloves and hats. Wool socks and sturdy shoes are helpful. Nights can be very cold. Bring a flashlight. We will provide red cellophane covers to protect your night vision.

 

RFO Calendar

Upcoming RFO Events

Monthly Listing of Public Events and Classes

October 2017
  • Thursday, 10/12/2017 - RFO at STEM Cafe
    Time: 7 PM - 12 Midnight (at Piner High School)
    • VMOA/RFO President Steve Smith will be the guest speaker at Piner High School's STEM Cafe, presenting Fundamentals of Photometry. The SPARQ Observatory will be open to the public at 8PM after the talk. Snacks and light refreshments are included!
  • Monday, 10/16/2017 - Night Sky Fall Series
    Time: 7 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #2 of 6) Reservations Recommended
  • Thursday, 10/19/2017 - What's Up
    Time: 7 PM - 12 Midnight (at -)
    • "What's Up" is a ticketed Star Party event for the public, limited to 30 visitors. Visit rfo.org or Brown Paper Tickets to purchase tickets.
  • Saturday, 10/21/2017 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Saturday, 10/21/2017 - Public Star Party
    Time: 8 PM - 12 Midnight
  • Monday, 10/23/2017 - Night Sky Fall Series
    Time: 7 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #3 of 6) Reservations Recommended
  • Saturday, 10/28/2017 - Science Discovery Day
    Time: 10 AM - 4 PM (at Sonoma County Fairgrounds)
    • Come join RFO at the Sonoma County Fairgrounds for Science Discovery Day! We'll have solar telescopes set up for you to view the Sun safely. We'll be making comets (yes, really!) and doing other fun activities for kids and adults!

November 2017
  • Saturday, 11/11/2017 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Saturday, 11/11/2017 - Public Star Party
    Time: 6 PM - 12 Midnight
  • Monday, 11/13/2017 - Night Sky Fall Series
    Time: 7 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #4 of 6) Reservations Recommended
  • Monday, 11/20/2017 - Night Sky Fall Series
    Time: 7 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #5 of 6) Reservations Recommended
  • Friday, 11/24/2017 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Friday, 11/24/2017 - Public Star Party
    Time: 6 PM - 12 Midnight
    • Public Star Party

December 2017
  • Monday, 12/11/2017 - Night Sky Fall Series
    Time: 7 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #6 of 6) Reservations Recommended

January 2018
  • Saturday, 1/13/2018 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Saturday, 1/13/2018 - Public Star Party
    Time: 6 PM - 12 Midnight
  • Monday, 1/15/2018 - Night Sky Spring Series
    Time: 7 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #1 of 6) Reservations Recommended

February 2018
  • Saturday, 2/10/2018 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Saturday, 2/10/2018 - Public Star Party
    Time: 7 PM - 12 Midnight
  • Monday, 2/12/2018 - Night Sky Spring Series
    Time: 7 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #2 of 6) Reservations Recommended
  • Thursday, 2/15/2018 - What's Up?
    Time: 7 PM - 12 Midnight (at -)
    • What's Up? is RFO's limited ticket star party. The general public is invited to purchase tickets via Brown Paper Tickets.

March 2018
  • Monday, 3/12/2018 - Night Sky Spring Series
    Time: 7:30 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #3 of 6) Reservations Recommended
  • Saturday, 3/17/2018 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Saturday, 3/17/2018 - Public Star Party
    Time: 8 PM - 12 Midnight

April 2018
  • Monday, 4/9/2018 - Night Sky Spring Series
    Time: 7:30 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #4 of 6) Reservations Recommended
  • Saturday, 4/14/2018 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Saturday, 4/14/2018 - Public Star Party
    Time: 8 PM - 12 Midnight
  • Monday, 4/16/2018 - Night Sky Spring Series
    Time: 7:30 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #5 of 6) Reservations Recommended
  • Thursday, 4/19/2018 - What's Up?
    Time: 8 PM - 12 Midnight (at -)
    • What's Up? is RFO's limited ticket star party. The general public is invited to purchase tickets via Brown Paper Tickets.
  • Saturday, 4/21/2018 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Saturday, 4/21/2018 - Public Star Party - Astronomy Day
    Time: 8 PM - 12 Midnight

May 2018
  • Monday, 5/7/2018 - Night Sky Spring Series
    Time: 7:30 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #6 of 6) Reservations Recommended
  • Saturday, 5/12/2018 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Saturday, 5/12/2018 - Public Star Party
    Time: 8 PM - 12 Midnight

June 2018
  • Monday, 6/4/2018 - Night Sky Summer Series
    Time: 8 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #1 of 6) Reservations Recommended
  • Saturday, 6/9/2018 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Saturday, 6/9/2018 - Public Star Party
    Time: 8 PM - 12 Midnight
  • Monday, 6/11/2018 - Night Sky Summer Series
    Time: 8 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #2 of 6) Reservations Recommended
  • Thursday, 6/14/2018 - Whats' Up?
    Time: 8 PM - 12 Midnight (at -)
    • What's Up? is RFO's limited ticket star party. The general public is invited to purchase tickets via Brown Paper Tickets.
  • Saturday, 6/16/2018 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Saturday, 6/16/2018 - Public Star Party
    Time: 8 PM - 12 Midnight

July 2018
  • Monday, 7/2/2018 - Night Sky Summer Series
    Time: 8 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #3 of 6) Reservations Recommended
  • Saturday, 7/7/2018 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Saturday, 7/7/2018 - Public Star Party
    Time: 8 PM - 12 Midnight
  • Monday, 7/9/2018 - Night Sky Summer Series
    Time: 8 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #4 of 6) Reservations Recommended
  • Saturday, 7/14/2018 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Saturday, 7/14/2018 - Public Star Party
    Time: 8 PM - 12 Midnight

August 2018
  • Monday, 8/6/2018 - Night Sky Summer Series
    Time: 8 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #5 of 6) Reservations Recommended
  • Thursday, 8/9/2018 - What's Up?
    Time: 8 PM - 12 Midnight (at -)
    • What's Up? is RFO's limited ticket star party. The general public is invited to purchase tickets via Brown Paper Tickets.
  • Saturday, 8/11/2018 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Saturday, 8/11/2018 - Public Star Party
    Time: 8 PM - 12 Midnight
    • We focus on Mars this evening, which is now just past opposition. Note that Mars observing will occur late, with the best observing after 11pm.
  • Sunday, 8/12/2018 - Perseids Event
    Time: 9 PM - 12 Midnight
    • RFO will be open this night for observing the Perseid Meteor Shower, with telescopes operating earlier in the evening for general observing. Note that the meteors don't get started until about 11pm with best viewing in the a.m. hours.
  • Monday, 8/13/2018 - Night Sky Summer Series
    Time: 8 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #6 of 6) Reservations Recommended

September 2018
  • Saturday, 9/8/2018 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Saturday, 9/8/2018 - Public Star Party
    Time: 8 PM - 12 Midnight
  • Sunday, 9/9/2018 - Observing Lab: Star Death
    Time: 7 PM - 12 Midnight
    • "Star Death: The End of Stellar Fusion" - An intensive telescope observing session after a brief presentation on the night's theme. Handouts/Observing Lists provided. Attendance limited to 10. ("Rain check" Wed, 9/20.) Fee: $30. Reservations Required
  • Monday, 9/10/2018 - Night Sky Fall Series
    Time: 7 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #1 of 6) Reservations Recommended

October 2018
  • Monday, 10/1/2018 - Night Sky Fall Series
    Time: 7 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #2 of 6) Reservations Recommended
  • Saturday, 10/6/2018 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Saturday, 10/6/2018 - Public Star Party
    Time: 8 PM - 12 Midnight
  • Monday, 10/8/2018 - Night Sky Fall Series
    Time: 7 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #3 of 6) Reservations Recommended
  • Thursday, 10/11/2018 - What's Up?
    Time: 7 PM - 12 Midnight (at -)
    • What's Up? is RFO's limited ticket star party. The general public is invited to purchase tickets via Brown Paper Tickets.
  • Saturday, 10/13/2018 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Saturday, 10/13/2018 - Public Star Party - Astronomy Day
    Time: 7 PM - 12 Midnight

November 2018
  • Monday, 11/5/2018 - Night Sky Fall Series
    Time: 7 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #4 of 6) Reservations Recommended
  • Saturday, 11/10/2018 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Saturday, 11/10/2018 - Public Star Party
    Time: 6 PM - 12 Midnight
  • Friday, 11/23/2018 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Friday, 11/23/2018 - Public Lunar Observing
    Time: 6 PM - 12 Midnight

December 2018
  • Monday, 12/3/2018 - Night Sky Fall Series
    Time: 7 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #5 of 6) Reservations Recommended
  • Monday, 12/10/2018 - Night Sky Fall Series
    Time: 7 PM - 12 Midnight
    • Learn the constellations, stars, deep sky objects, and more. Includes observing. (Class #6 of 6) Reservations Recommended

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