When the nights grow longer... the skies get spookier!
Celebrate Halloween under the stars at Spooky Skies, a frightfully fun evening of cosmic chills and celestial thrills at the Robert Ferguson Observatory! As darkness falls over Sugarloaf Ridge State Park, our astronomers will guide you through eerie tales of the night sky—ghostly nebulae, vampire stars, and mysterious cosmic phenomena that are stranger than fiction.
Peer through our telescopes for a hauntingly beautiful view of the Moon, planets, and distant galaxies shimmering in the autumn sky. Come in costume if you dare—there will be treats, spooky science activities, and fun for all ages!
So grab your red flashlight, bundle up, and join us for an out-of-this-world Halloween celebration that’s more wonder than fright—but just a little bit spooky.
Family-friendly event. Costumes encouraged but not required!
All ages are welcome. Bring a flashlight with a red light setting (no white light allowed). Red light flashlights will also be available for purchase.
$40.00 per adult, $35.00 for seniors (62+) and students, $30 for members, and $25 for children 12 and under. Cost includes the Sugarloaf Ridge State Park parking fee.
You MUST have a ticket to attend this event. Attendance is limited. Please note that tickets are non-refundable and cannot be used for future events.
RFO is operated by the Valley of the Moon Observatory Association, a 501(3)(c) nonprofit organization, and all of the proceeds will go towards maintaining this beloved Sonoma county institution.
The Valley of the Moon Observatory Association (VMOA) is volunteer amateur and professional astronomers plus a small supporting staff organized as a nonprofit association to provide educational programs about science and astronomy for students, the public, and in support of educators.
The VMOA is responsible for the construction, maintenance and utilization of the Robert Ferguson Observatory and functions as a 501(c)(3) nonprofit organization under the auspices of the California State Parks System, and in cooperation with our local state parks.
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