True Star Power

Go to a Star Party at Robert Ferguson Observatory in Sonoma Valley

04.08.2026

Here's a truly enlightening way to spend an evening: head to Robert Ferguson Observatory in Sugarloaf Ridge State Park for a "star party." Check the calendar for the next one! At dusk, the observatory opens, giving the public access to celestial viewing via three powerful telescopes: the 24-inch reflecting, the 8-inch refracting, and the 14-inch robotic telescope, unique because it’s a computer-controlled scientific-grade camera. The Observatory also hosts a monthly "What's Up" program where you can learn all about the celestial world from docents.

Robert Ferguson Observatory

Robert Ferguson Observatory

Spy dynamic star clusters like the Bee Hive, see Saturn up close, and learn about everything from star alignments to black holes in seminars occurring throughout the evening.

Amateur astronomers—who know their stuff!—set up their telescopes in the parking lot next to the observatory; peer into their personal telescopes and get all kinds of trivia on the solar system. Star power has its perks!

BONUS CAMPING: Sugarloaf Ridge State Park also has camping.

Visit Robert Ferguson Observatory’s website for all upcoming star parties.

Trending Stories NorCal

View all Stories
  1. Napa Valley Paddle kayaker and paddle boarder on the Napa Valley river

    Napa's Wild Side

    It’s wine country’s Amazon. The gentle Napa River is an ecological—and recreational—delight. And Napa Valley Paddle sets you up for maximum enjoyment of this experience.

    View

  2. Been There, Dome That

    Surrounded by granite domes, craggy peaks, and miles of hiking trails, the High Sierra landscape of Tuolumne Meadows in Yosemite National Park is famous for good reason. For a truly grand view, take a short hike to bold—and bald (except for snow at times)—Lembert Dome.

    View

  3. Wapama Wows

    Hetch Hetchy can be overlooked in Yosemite National Park because of its more remote location and limited facilities. But this is where you’ll also find one of the best day hikes in the park: Wapama Falls.

    View
  4. Hike Mount Tamalpais into Muir Woods

    Muir Woods Through the Backdoor

    A backdoor entrance into Muir Woods? Hike a tranquil trail that starts in Mount Tamalpais State Park and quietly leads into Muir Woods, letting you avoid the busyness of the main parking area.

    View

Trending Stories SoCal

View all Stories

  1. Inn-spiration Point!

    For more than a century, people have been hiking or mountain biking to West Point Inn for good reason. Perched at 1,785 feet on the southern slope of Mount Tamalpais, the historic inn has sweeping views from the Marin Headlands to the San Francisco skyline.

    View

  2. A Thousand Steps to Paradise

    A picture is worth a thousand words, but is a gorgeous beach in Laguna worth a thousand steps? The answer is yes, though the question is moot, because it’s only 223 steep steps down to the 400-yard stretch of sand known as 1000 Steps Beach.

    View
  3. Sponsored

    Take the Exit to the Best of the San Francisco Peninsula

    The San Francisco Peninsula is proof that some of Northern California’s greatest surprises are hiding just off Highway 101. All you have to do is take the exit.

    View
  4. Hike to the Sierra Buttes Fire Lookout in the Lakes Basin

    Lookout for This View!

    Sierra Buttes Lookout, at a lofty 8,591 feet, is a memory maker for its pucker-worthy stairway to the tower’s balcony. It's a 5-mile (round-trip) hike to reach it. And the reward? Epic!

    View