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:

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

February 2020
  • Saturday, 2/22/2020 - 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.
  • Monday, 2/24/2020 - Your Universe
    Time: 7 PM - 10 PM (at -)
    • A Trip Around the Sun. Each class will explore several constellations visible from RFO and the stars and heavenly wonders in them. Weather permitting, we will open up the telescopes and observe what we just discussed.

March 2020
  • Wednesday, 3/18/2020 - Young Astronomers
    Time: 2 PM - 3 PM (at Sonoma Valley Library)
    • Program for kids in Grades 4-9 to strike a spark of interest in astronomy.
  • Saturday, 3/21/2020 - 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, 3/21/2020 - Public Star Party
    Time: 7 PM - 12 Midnight
    • Presentations on astronomical topics are given in the classroom throughout the course of the evening. Starting at dusk, the Observatory's three main telescopes are open for your viewing. Docents set up additional telescopes in front of the building. Friendly and knowledgeable docents are available to answer your questions.

      $5.00 per adult, under 18 FREE.
      (Plus State Park Parking Fee $10.00 per vehicle.)
  • Monday, 3/23/2020 - Your Universe
    Time: 7:30 PM - 10 PM (at -)
    • A Trip Around the Sun. Each class will explore several constellations visible from RFO and the stars and heavenly wonders in them. Weather permitting, we will open up the telescopes and observe what we just discussed.
  • Monday, 3/30/2020 - Young Astronomers
    Time: 6 PM - 7 PM (at Windsor Library)
    • Program for kids in Grades 4-9 to strike a spark of interest in astronomy.

April 2020
  • Monday, 4/6/2020 - Young Astronomers
    Time: 6 PM - 7 PM (at Rohnert Park Library)
    • Program for kids in Grades 4-9 to strike a spark of interest in astronomy.
  • Friday, 4/17/2020 - Fiesta de Estrellas
    Time: 8 PM - 12 Midnight (at -)
    • ¡Venga a conocer más acerca de nuestro universo! Los docentes de el observatorio Ferguson nos guiarán en una charla astronómica bilingüe y en el uso de telescopios para que usted y su familia puedan observar el cosmos. El evento comenzará a las ocho de la noche en el observatorio del parque estatal Sugarloaf. Recomendamos vestirse en capas y traer una linterna pequeña. Si tiene un telescopio propio, le invitamos a traerlo. La admisión es de $5 para adultos y gratuito para los menores de edad; el estacionamiento es $10 por vehículo.
  • Saturday, 4/18/2020 - 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, 4/18/2020 - Public Star Party
    Time: 8 PM - 12 Midnight
    • We are proud to welcome guest speaker Laura Sparks from Santa Rosa Junior College who will share her adventures exploring the skies from her recent trip to Chile. Starting at dusk, the Observatory's three main telescopes are open for your viewing. Docents set up additional telescopes in front of the building. Friendly and knowledgeable docents are available to answer your questions.

      $5.00 per adult, under 18 FREE.
      (Plus State Park Parking Fee $10.00 per vehicle.)
  • Monday, 4/20/2020 - Your Universe
    Time: 7:30 PM - 10 PM (at -)
    • A Trip Around the Sun. Each class will explore several constellations visible from RFO and the stars and heavenly wonders in them. Weather permitting, we will open up the telescopes and observe what we just discussed.
  • Wednesday, 4/22/2020 - Young Astronomers
    Time: 6 PM - 7 PM (at Rincon Valley Library)
    • Program for kids in Grades 4-9 to strike a spark of interest in astronomy.
  • Saturday, 4/25/2020 - What's Up?
    Time: 7:30 PM - 12 Midnight (at -)
    • If you've ever looked up at the stars overhead and wondered what else is up there, the Robert Ferguson Observatory's "Whats Up?" program is designed for you! The event will feature a talk on objects in our local galaxy, the Milky Way, and very deep space objects beyond, plus you will get plenty of time at the telescope eyepieces. Tickets may be purchased via Brown Paper Tickets. (Ticket link coming soon!)

May 2020
  • Saturday, 5/2/2020 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Join us for Astronomy Day!
      Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Saturday, 5/2/2020 - Public Star Party
    Time: 8 PM - 12 Midnight
    • Join us for Astronomy Day!
      Presentations on astronomical topics are given in the classroom throughout the course of the evening. Starting at dusk, the Observatory's three main telescopes are open for your viewing. Docents set up additional telescopes in front of the building. Friendly and knowledgeable docents are available to answer your questions.

      $5.00 per adult, under 18 FREE.
      (Plus State Park Parking Fee $10.00 per vehicle.)
  • Monday, 5/18/2020 - Your Universe
    Time: 8 PM - 10 PM (at -)
    • A Trip Around the Sun. Each class will explore several constellations visible from RFO and the stars and heavenly wonders in them. Weather permitting, we will open up the telescopes and observe what we just discussed.
  • Saturday, 5/23/2020 - What's Up
    Time: 8 PM - 12 Midnight (at -)
    • If you've ever looked up at the stars overhead and wondered what else is up there, the Robert Ferguson Observatory's "Whats Up?" program is designed for you! The event will feature a talk on objects in our local galaxy, the Milky Way, and very deep space objects beyond, plus you will get plenty of time at the telescope eyepieces. Tickets may be purchased via Brown Paper Tickets. (Ticket link coming soon!)

June 2020
  • Saturday, 6/13/2020 - 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, 6/13/2020 - Public Star Party
    Time: 8 PM - 12 Midnight
    • Presentations on astronomical topics are given in the classroom throughout the course of the evening. Starting at dusk, the Observatory's three main telescopes are open for your viewing. Docents set up additional telescopes in front of the building. Friendly and knowledgeable docents are available to answer your questions.

      $5.00 per adult, under 18 FREE.
      (Plus State Park Parking Fee $10.00 per vehicle.)
  • Thursday, 6/18/2020 - Your Universe
    Time: 8 PM - 10 PM (at -)
    • A Trip Around the Sun. Each class will explore several constellations visible from RFO and the stars and heavenly wonders in them. Weather permitting, we will open up the telescopes and observe what we just discussed.
  • Saturday, 6/20/2020 - What's Up?
    Time: 8 PM - 12 Midnight (at -)
    • If you've ever looked up at the stars overhead and wondered what else is up there, the Robert Ferguson Observatory's "Whats Up?" program is designed for you! The event will feature a talk on objects in our local galaxy, the Milky Way, and very deep space objects beyond, plus you will get plenty of time at the telescope eyepieces. Tickets may be purchased via Brown Paper Tickets. (Ticket link coming soon!)

July 2020
  • Saturday, 7/11/2020 - What's Up?
    Time: 8 PM - 12 Midnight (at -)
    • If you've ever looked up at the stars overhead and wondered what else is up there, the Robert Ferguson Observatory's "Whats Up?" program is designed for you! The event will feature a talk on objects in our local galaxy, the Milky Way, and very deep space objects beyond, plus you will get plenty of time at the telescope eyepieces. Tickets may be purchased via Brown Paper Tickets. (Ticket link coming soon!)
  • Thursday, 7/16/2020 - Your Universe
    Time: 8 PM - 10 PM (at -)
    • A Trip Around the Sun. Each class will explore several constellations visible from RFO and the stars and heavenly wonders in them. Weather permitting, we will open up the telescopes and observe what we just discussed.
  • Saturday, 7/18/2020 - 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, 7/18/2020 - Public Star Party
    Time: 8 PM - 12 Midnight
    • Presentations on astronomical topics are given in the classroom throughout the course of the evening. Starting at dusk, the Observatory's three main telescopes are open for your viewing. Docents set up additional telescopes in front of the building. Friendly and knowledgeable docents are available to answer your questions.

      $5.00 per adult, under 18 FREE.
      (Plus State Park Parking Fee $10.00 per vehicle.)

August 2020
  • Saturday, 8/15/2020 - 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, 8/15/2020 - Public Star Party
    Time: 8 PM - 12 Midnight
    • Presentations on astronomical topics are given in the classroom throughout the course of the evening. Starting at dusk, the Observatory's three main telescopes are open for your viewing. Docents set up additional telescopes in front of the building. Friendly and knowledgeable docents are available to answer your questions.

      $5.00 per adult, under 18 FREE.
      (Plus State Park Parking Fee $10.00 per vehicle.)
  • Thursday, 8/20/2020 - Your Universe
    Time: 8 PM - 10 PM (at -)
    • A Trip Around the Sun. Each class will explore several constellations visible from RFO and the stars and heavenly wonders in them. Weather permitting, we will open up the telescopes and observe what we just discussed.
  • Friday, 8/21/2020 - Focus Night: Saturn
    Time: 8 PM - 12 Midnight (at -)
    • SATURN... a world that continues to dazzle and mystify. This iconic planet, sixth from the Sun, is home to an orbiting array of intriguing and unique worlds of its own. Come learn about this fascinating planetary system and discover the summer sky. (Ticket link coming soon!)

September 2020
  • Saturday, 9/12/2020 - Focus Night: Jupiter
    Time: 7 PM - 12 Midnight (at -)
    • JUPITER... the largest planet in our solar system. This gigantic planet and it's moons continue to amaze us with new information from the Juno probe data. Come learn about this fascinating planetary system and discover the autumn sky. (Ticket link coming soon!)
  • Sunday, 9/13/2020 - Observing Lab
    Time: 7 PM - 12 Midnight
    • -
  • Thursday, 9/17/2020 - Your Universe
    Time: 7 PM - 10 PM (at -)
    • A Trip Around the Sun. Each class will explore several constellations visible from RFO and the stars and heavenly wonders in them. Weather permitting, we will open up the telescopes and observe what we just discussed.
  • Saturday, 9/26/2020 - Public Solar Observing
    Time: 11 AM - 3 PM
    • Join us for Astronomy Day!
      Come and view our closest star and learn about sunspots, prominences, flares and more. We observe with both visible light and radio telescopes.
  • Saturday, 9/26/2020 - Public Star Party
    Time: 7 PM - 12 Midnight
    • Join us for Astronomy Day!
      Presentations on astronomical topics are given in the classroom throughout the course of the evening. Starting at dusk, the Observatory's three main telescopes are open for your viewing. Docents set up additional telescopes in front of the building. Friendly and knowledgeable docents are available to answer your questions.

      $5.00 per adult, under 18 FREE.
      (Plus State Park Parking Fee $10.00 per vehicle.)

October 2020
  • Thursday, 10/15/2020 - Your Universe
    Time: 7 PM - 10 PM (at -)
    • A Trip Around the Sun. Each class will explore several constellations visible from RFO and the stars and heavenly wonders in them. Weather permitting, we will open up the telescopes and observe what we just discussed.
  • Saturday, 10/17/2020 - 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, 10/17/2020 - Public Star Party
    Time: 7 PM - 12 Midnight
    • Presentations on astronomical topics are given in the classroom throughout the course of the evening. Starting at dusk, the Observatory's three main telescopes are open for your viewing. Docents set up additional telescopes in front of the building. Friendly and knowledgeable docents are available to answer your questions.

      $5.00 per adult, under 18 FREE.
      (Plus State Park Parking Fee $10.00 per vehicle.)

November 2020
  • Saturday, 11/7/2020 - Focus Night: Mars
    Time: 7 PM - 12 Midnight (at -)
    • MARS... the red planet. This rocky planet, fourth from the Sun, could harbor life and is the focus of much science and intrigue. Come learn what makes this planet so interesting and discover the autumn sky. (Ticket link coming soon!)
  • Thursday, 11/12/2020 - Your Universe
    Time: 7 PM - 10 PM (at -)
    • A Trip Around the Sun. Each class will explore several constellations visible from RFO and the stars and heavenly wonders in them. Weather permitting, we will open up the telescopes and observe what we just discussed.
  • Saturday, 11/14/2020 - 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, 11/14/2020 - Public Star Party
    Time: 6 PM - 12 Midnight
    • Presentations on astronomical topics are given in the classroom throughout the course of the evening. Starting at dusk, the Observatory's three main telescopes are open for your viewing. Docents set up additional telescopes in front of the building. Friendly and knowledgeable docents are available to answer your questions.

      $5.00 per adult, under 18 FREE.
      (Plus State Park Parking Fee $10.00 per vehicle.)
  • Friday, 11/27/2020 - 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, 11/27/2020 - Public Star Party
    Time: 6 PM - 12 Midnight
    • Presentations on astronomical topics are given in the classroom throughout the course of the evening. Starting at dusk, the Observatory's three main telescopes are open for your viewing. Docents set up additional telescopes in front of the building. Friendly and knowledgeable docents are available to answer your questions.

      $5.00 per adult, under 18 FREE.
      (Plus State Park Parking Fee $10.00 per vehicle.)

December 2020
  • Thursday, 12/10/2020 - Your Universe
    Time: 7 PM - 10 PM (at -)
    • A Trip Around the Sun. Each class will explore several constellations visible from RFO and the stars and heavenly wonders in them. Weather permitting, we will open up the telescopes and observe what we just discussed.

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