Stargazing in California – Visit California Media Center
https://media.visitcalifornia.com/story-inspiration/discover-story-ideas/stargazing-in-california
In addition to claiming the vibrant city of San Francisco and world-renowned wine country, the Bay Area is also home to excellent opportunities for stargazing. In Sonoma Valley, the Robert Ferguson Observatory in Sugarloaf Ridge State Park is usually open for monthly star parties where docents present on a variety of astronomical topics and open up the three main telescopes for viewing.