Big Bear Solar Observatory

40386 North Shore Lane Big Bear City, CA 92314-9672

Hours

Tours offered in limited capacity June - September, every other Thursday, 2 pm - 3 p.m.

Cost

  • There is no cost to visit the Big Bear Solar Observatory.
  • Please check their website tour schedule and updates.

About

For a heavenly experience while vacationing in Big Bear, explore the Big Bear Solar Observatory, also known as BBSO.

This fascinating facility was established in 1970 and offers a unique and unforgettable experience for all astronomy enthusiasts.

Big Bear Solar Observatory is operated by the New Jersey Institute of Technology and is dedicated to exploring our Sun's mysteries. Scientists and researchers focus on solar research, unraveling the secrets of our closest star.

Perched on a peninsula in the middle of Big Bear Lake, the observatory's location is crucial in ensuring high-quality solar images. The lake's calm waters create a stable atmosphere, allowing researchers and visitors alike to enjoy remarkably crisp and clear views of the sun.

The facility is close to Big Bear Discovery Center and the Juniper Point Picnic Area, making combining a picnic with visiting some of California's premiere destinations easy.

Most observations and tours are during the daytime when the sun is out. But there are nightly observations when using the Earthshine telescope. Observation schedules are governed by the phase of the Moon.

There are three buildings with telescopes at Big Bear Solar Observatory. The large building contains the New Solar Telescope (NST), a 1.6 m solar telescope. The small dome beside it houses two telescopes on one mount, the hydrogen-alpha solar flare patrol telescope and the Earthshine telescope. The rectangular building on the shoreline contains our GONG telescope.

GONG is the acronym for Global Oscillation Network Group and is part of the National Solar Observatory in Tucson, Arizona. GONG operates six identical telescopes worldwide to study the internal oscillations of the Sun.

BBSO is a one-of-a-kind observatory that has become a must-visit for those on a Big Bear vacation. 

Big Bear Solar Observatory: Fun Facts & Cool Features

One fascinating feature of BBSO is the New Solar Telescope (NST), the world's largest clear-aperture solar telescope. With an impressive 1.6-meter aperture, the NST can capture detailed images of the sun's surface. Scientists can then study the sun's magnetic fields, solar flares, and other phenomena.

Another cool feature is the Visible Imaging Spectrometer (VIS), a unique instrument that combines aspects of both imaging and spectroscopy. The VIS provides researchers with valuable data on the sun's magnetic fields, which play a critical role in understanding solar activity and its impact on Earth.

Whether you book a tour during the day or evening, grabbing a meal before or afterward is easy. Nearby restaurants like Grizzly Manor Cafe and Lumberjack Cafe offer stick-to-your-ribs fare that will satisfy the pickiest eater.

The observatory is also home to the Full Disk Ha Telescope (FDHT), which captures daily images of the entire solar disk in the hydrogen-alpha (Ha) wavelength. These images help scientists track changes in the sun's magnetic fields and monitor space weather.

Besides the cutting-edge research facilities, visitors to the observatory can enjoy the stunning natural beauty of Big Bear Lake. With the observatory surrounded by water, the breathtaking views make for an unforgettable experience.

Getting There

  • Start your journey in Big Bear, California.
  • Head east on Big Bear Blvd toward Big Bear Lake.
  • Turn right onto North Shore Drive.
  • Follow North Shore Drive until you reach North Shore Lane.
  • Turn right onto North Shore Lane.
  • Continue on North Shore Lane to the Big Bear Solar Observatory entrance.
  • Address: 40386 N Shore Ln, Big Bear, CA 92314

Local Tips

  • Tours are every Thursday from 2-3 PM.
  • Dress in layers, as the weather in Big Bear can change quickly.
  • Although the tour is free, consider making a donation.
  • The tour may not be suitable for some. You must be able to walk 1000' down and back on a gravel road and climb three flights of stairs.
  • Arrive early to find the best spot to view the sun and ensure you get the most out of your visit.
  • Check out nearby hiking trails and nature spots to maximize your day in Big Bear.

Location

40386 North Shore Lane Big Bear City, CA 92314-9672

Frequently Asked Questions

As a popular drive-to destination, there are three main routes leading to Big Bear: Highways 330, 38, and 18. Driving distance to Big Bear, CA from major hubs: Los Angeles (105 miles), San Diego (155 miles), Palm Springs (90 miles), and Las Vegas, NV (210 miles). Big Bear is also about an 8-hour drive from San Francisco.

Flying? The most common California airports to get to Big Bear are LAX (Los Angeles), Ontario International (ONT), Palm Springs, or the John Wayne Airport in Orange County. A small airport in Big Bear is also available for private planes.

As a four-season destination, there is always something to enjoy in Big Bear. With that said, the busiest times are definitely ski season (from about late November or mid-December through mid-March) and summer months between Memorial Day to Labor Day. Skiing and snowboarding are the main attractions for winter, while outdoor adventures in and around Big Bear Lake are high points throughout the summer.

Spring and fall are equally as welcoming in Big Bear, particularly for those looking to avoid bigger crowds. Additionally, spring and fall are peak fishing seasons for rainbow trout.

Big Bear is home to a variety of annual events and festivals, not to mention the best Oktoberfest in the Western U.S. Some of the traditional highlights include:

  • Oktoberfest: A popular fall tradition for over 50 years that combines German traditions and Big Bear’s mountain landscape into a frenzy of music, food, and drinks. Prost!
  • Big Bear Maifest: Yet another celebration of beer, food, and music set in the fabulous spring, generally late May.
  • Big Bear Run: A two-day dual sport motorcycle tour of the mountains surrounding beautiful Big Bear Lake, running motors for over 30 years.
  • Tour de Big Bear: This late summer two-day cycling event is one of Southern California’s favorite rides
  • Annual Bald Eagle Count: An annual event for bird watchers and nature enthusiasts to observe bald eagles during their wintering period.
More questions

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