Calendar of Events

The Robert Ferguson Observatory (RFO) is open to the public at least once a month, usually on a Saturday near the time of the New Moon.

Star Parties: 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.

You must have a ticket to attend, as we are limited to 40 attendees per County Health Orders. Proof of vaccination or a negative rapid test taken within the last 48 hours are also required to attend.

FAQs:

1. Map and Directions
2. When to arrive: We keep the observatory open as long as there are visitors, but you must arrive within 3 hours after start time to ensure that we remain open for you. Summer Star Parties begin with tours and presentations until it’s dark enough for observing.
3. Bring warm clothing, even in summer—observing is done outdoors.
4. There is a short walk from the parking area to the Observatory and you may wish to bring a small flashlight.
5. White Light: No white lights should be used after dark; the observatory is a red-light-only area to protect everyone’s night vision. We will supply red cellophane to cover flashlights. Please note:
   ◦ Bring a SMALL flashlight (large camp lanterns, light sticks, etc., cannot be adequately covered by red cellophane).
   ◦ Cell phones or cell-phone flashlights are acceptable but must be covered in red cellophane. (No cell service at the observatory).
   ◦ Some head lamps are difficult to cover with red cellophane. Once covered, head lamps should be worn around the neck or used pointing down as they are usually very bright at eye level.
   ◦ Red flashlights are available for $5 at the observatory.
6. Alcohol is prohibited on Observatory grounds.
7. The Observatory is not open to the public except for scheduled events.

Classroom presentations are always offered on Star Party nights even if the weather is poor. For current conditions call the observatory at (707) 833-6979.
For more info please visit the Robert Ferguson Observatory website.

Join us as we walk through the cosmos (on a scale model) and discuss the vast distance between our neighboring planets. The Sugarloaf Ridge Planet Walk is a unique opportunity to connect with the nature of planet earth as we discuss the incredible nature of the stars and beyond. Each step on the planet walk is scaled to represent 2.3 million miles so If you were to take a step every 5 seconds, you’d be traveling at the speed of light!

Starting at the White Barn and ending at the Robert Ferguson Observatory, we’ll walk to Neptune and back! This will be a moderate hike with an estimated elevation change of around 900ft and it will take approximately 2.5 hours to complete. The hike will end at the observatory where we’ll have an opportunity to observe the most important celestial object in our solar system, the sun! The Observatory will have solar viewing between 11am and 3pm so if you walk to the outer planets with us you can see the sun’s great prominence on your return!

Tickets are $10 for general audiences, $5 for students, youth (12-17 year olds; must be accompanied by an adult), Sugarloaf members, Sugarloaf volunteers, and free for children under 12. Wear appropriate clothing and comfortable shoes. Bring at least one quart of water, and a lunch/snack as we will be taking a break once we reach the bench at Neptune. Parking fees apply.

Ease of access: Although not ADA-compliant, Meadow Trail is passable by wheelchair and stroller up to the Brushy Peaks junction. Brushy Peaks Trail is a single-track dirt trail with 600 feet of elevation and steps.

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For more events at Sugarloaf, visit our calendar.

The Robert Ferguson Observatory (RFO) is open to the public at least once a month, usually on a Saturday near the time of the New Moon.

Star Parties: 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.

You must have a ticket to attend, as we are limited to 40 attendees per County Health Orders. Proof of vaccination or a negative rapid test taken within the last 48 hours are also required to attend.

FAQs:

1. Map and Directions
2. When to arrive: We keep the observatory open as long as there are visitors, but you must arrive within 3 hours after start time to ensure that we remain open for you. Summer Star Parties begin with tours and presentations until it’s dark enough for observing.
3. Bring warm clothing, even in summer—observing is done outdoors.
4. There is a short walk from the parking area to the Observatory and you may wish to bring a small flashlight.
5. White Light: No white lights should be used after dark; the observatory is a red-light-only area to protect everyone’s night vision. We will supply red cellophane to cover flashlights. Please note:
   ◦ Bring a SMALL flashlight (large camp lanterns, light sticks, etc., cannot be adequately covered by red cellophane).
   ◦ Cell phones or cell-phone flashlights are acceptable but must be covered in red cellophane. (No cell service at the observatory).
   ◦ Some head lamps are difficult to cover with red cellophane. Once covered, head lamps should be worn around the neck or used pointing down as they are usually very bright at eye level.
   ◦ Red flashlights are available for $5 at the observatory.
6. Alcohol is prohibited on Observatory grounds.
7. The Observatory is not open to the public except for scheduled events.

Classroom presentations are always offered on Star Party nights even if the weather is poor. For current conditions call the observatory at (707) 833-6979.
For more info please visit the Robert Ferguson Observatory website.

The Robert Ferguson Observatory (RFO) is open to the public at least once a month, usually on a Saturday near the time of the New Moon.

Star Parties: 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.

You must have a ticket to attend, as we are limited to 40 attendees per County Health Orders. Proof of vaccination or a negative rapid test taken within the last 48 hours are also required to attend.

FAQs:

1. Map and Directions
2. When to arrive: We keep the observatory open as long as there are visitors, but you must arrive within 3 hours after start time to ensure that we remain open for you. Summer Star Parties begin with tours and presentations until it’s dark enough for observing.
3. Bring warm clothing, even in summer—observing is done outdoors.
4. There is a short walk from the parking area to the Observatory and you may wish to bring a small flashlight.
5. White Light: No white lights should be used after dark; the observatory is a red-light-only area to protect everyone’s night vision. We will supply red cellophane to cover flashlights. Please note:
   ◦ Bring a SMALL flashlight (large camp lanterns, light sticks, etc., cannot be adequately covered by red cellophane).
   ◦ Cell phones or cell-phone flashlights are acceptable but must be covered in red cellophane. (No cell service at the observatory).
   ◦ Some head lamps are difficult to cover with red cellophane. Once covered, head lamps should be worn around the neck or used pointing down as they are usually very bright at eye level.
   ◦ Red flashlights are available for $5 at the observatory.
6. Alcohol is prohibited on Observatory grounds.
7. The Observatory is not open to the public except for scheduled events.

Classroom presentations are always offered on Star Party nights even if the weather is poor. For current conditions call the observatory at (707) 833-6979.
For more info please visit the Robert Ferguson Observatory website.

The Robert Ferguson Observatory (RFO) is open to the public at least once a month, usually on a Saturday near the time of the New Moon.

Star Parties: 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.

You must have a ticket to attend, as we are limited to 40 attendees per County Health Orders. Proof of vaccination or a negative rapid test taken within the last 48 hours are also required to attend.

FAQs:

1. Map and Directions
2. When to arrive: We keep the observatory open as long as there are visitors, but you must arrive within 3 hours after start time to ensure that we remain open for you. Summer Star Parties begin with tours and presentations until it’s dark enough for observing.
3. Bring warm clothing, even in summer—observing is done outdoors.
4. There is a short walk from the parking area to the Observatory and you may wish to bring a small flashlight.
5. White Light: No white lights should be used after dark; the observatory is a red-light-only area to protect everyone’s night vision. We will supply red cellophane to cover flashlights. Please note:
   ◦ Bring a SMALL flashlight (large camp lanterns, light sticks, etc., cannot be adequately covered by red cellophane).
   ◦ Cell phones or cell-phone flashlights are acceptable but must be covered in red cellophane. (No cell service at the observatory).
   ◦ Some head lamps are difficult to cover with red cellophane. Once covered, head lamps should be worn around the neck or used pointing down as they are usually very bright at eye level.
   ◦ Red flashlights are available for $5 at the observatory.
6. Alcohol is prohibited on Observatory grounds.
7. The Observatory is not open to the public except for scheduled events.

Classroom presentations are always offered on Star Party nights even if the weather is poor. For current conditions call the observatory at (707) 833-6979.
For more info please visit the Robert Ferguson Observatory website.

The Robert Ferguson Observatory (RFO) is open to the public at least once a month, usually on a Saturday near the time of the New Moon.

Star Parties: 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.

You must have a ticket to attend, as we are limited to 40 attendees per County Health Orders. Proof of vaccination or a negative rapid test taken within the last 48 hours are also required to attend.

FAQs:

1. Map and Directions
2. When to arrive: We keep the observatory open as long as there are visitors, but you must arrive within 3 hours after start time to ensure that we remain open for you. Summer Star Parties begin with tours and presentations until it’s dark enough for observing.
3. Bring warm clothing, even in summer—observing is done outdoors.
4. There is a short walk from the parking area to the Observatory and you may wish to bring a small flashlight.
5. White Light: No white lights should be used after dark; the observatory is a red-light-only area to protect everyone’s night vision. We will supply red cellophane to cover flashlights. Please note:
   ◦ Bring a SMALL flashlight (large camp lanterns, light sticks, etc., cannot be adequately covered by red cellophane).
   ◦ Cell phones or cell-phone flashlights are acceptable but must be covered in red cellophane. (No cell service at the observatory).
   ◦ Some head lamps are difficult to cover with red cellophane. Once covered, head lamps should be worn around the neck or used pointing down as they are usually very bright at eye level.
   ◦ Red flashlights are available for $5 at the observatory.
6. Alcohol is prohibited on Observatory grounds.
7. The Observatory is not open to the public except for scheduled events.

Classroom presentations are always offered on Star Party nights even if the weather is poor. For current conditions call the observatory at (707) 833-6979.
For more info please visit the Robert Ferguson Observatory website.

The Robert Ferguson Observatory (RFO) is open to the public at least once a month, usually on a Saturday near the time of the New Moon.

Star Parties: 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.

You must have a ticket to attend, as we are limited to 40 attendees per County Health Orders. Proof of vaccination or a negative rapid test taken within the last 48 hours are also required to attend.

FAQs:

1. Map and Directions
2. When to arrive: We keep the observatory open as long as there are visitors, but you must arrive within 3 hours after start time to ensure that we remain open for you. Summer Star Parties begin with tours and presentations until it’s dark enough for observing.
3. Bring warm clothing, even in summer—observing is done outdoors.
4. There is a short walk from the parking area to the Observatory and you may wish to bring a small flashlight.
5. White Light: No white lights should be used after dark; the observatory is a red-light-only area to protect everyone’s night vision. We will supply red cellophane to cover flashlights. Please note:
   ◦ Bring a SMALL flashlight (large camp lanterns, light sticks, etc., cannot be adequately covered by red cellophane).
   ◦ Cell phones or cell-phone flashlights are acceptable but must be covered in red cellophane. (No cell service at the observatory).
   ◦ Some head lamps are difficult to cover with red cellophane. Once covered, head lamps should be worn around the neck or used pointing down as they are usually very bright at eye level.
   ◦ Red flashlights are available for $5 at the observatory.
6. Alcohol is prohibited on Observatory grounds.
7. The Observatory is not open to the public except for scheduled events.

Classroom presentations are always offered on Star Party nights even if the weather is poor. For current conditions call the observatory at (707) 833-6979.
For more info please visit the Robert Ferguson Observatory website.

The Robert Ferguson Observatory (RFO) is open to the public at least once a month, usually on a Saturday near the time of the New Moon.

Star Parties: 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.

You must have a ticket to attend, as we are limited to 40 attendees per County Health Orders. Proof of vaccination or a negative rapid test taken within the last 48 hours are also required to attend.

FAQs:

1. Map and Directions
2. When to arrive: We keep the observatory open as long as there are visitors, but you must arrive within 3 hours after start time to ensure that we remain open for you. Summer Star Parties begin with tours and presentations until it’s dark enough for observing.
3. Bring warm clothing, even in summer—observing is done outdoors.
4. There is a short walk from the parking area to the Observatory and you may wish to bring a small flashlight.
5. White Light: No white lights should be used after dark; the observatory is a red-light-only area to protect everyone’s night vision. We will supply red cellophane to cover flashlights. Please note:
   ◦ Bring a SMALL flashlight (large camp lanterns, light sticks, etc., cannot be adequately covered by red cellophane).
   ◦ Cell phones or cell-phone flashlights are acceptable but must be covered in red cellophane. (No cell service at the observatory).
   ◦ Some head lamps are difficult to cover with red cellophane. Once covered, head lamps should be worn around the neck or used pointing down as they are usually very bright at eye level.
   ◦ Red flashlights are available for $5 at the observatory.
6. Alcohol is prohibited on Observatory grounds.
7. The Observatory is not open to the public except for scheduled events.

Classroom presentations are always offered on Star Party nights even if the weather is poor. For current conditions call the observatory at (707) 833-6979.
For more info please visit the Robert Ferguson Observatory website.