Big Bear Solar Observatory review and summer tour guide

The New Jersey Institute of Technology operates the observatory as a research facility and offers limited public tours led by volunteer docents.

Visitors interested in solar science value the telescope access and lakeside setting. Other visitors report disappointment when they arrive without a tour reservation and cannot enter.

The setting and access

Big Bear Solar Observatory is located at 40386 North Shore Lane, Big Bear City, CA 92314. It is situated about one-half mile west of the Big Bear Discovery Center, near the intersection of Highway 38 and North Shore Drive. The facility is private property, not an open public attraction. Visitors approach the observatory along a gravel road. The tour route involves navigating three flights of stairs.

What to expect on a tour

Public tours offer access to a functioning solar-research facility and its telescope area. The New Jersey Institute of Technology owns and operates the observatory. These tours are described as a limited summer offering. The observatory also provides virtual tours and research videos online for those who cannot attend in person. The facility is dedicated to solar research.

The observatory is a working research institution. Its public tours are a limited summer offering. The New Jersey Institute of Technology manages the operations.

Our overall score for the Big Bear Solar Observatory is 7.8 out of 10. This score is a weighted sum of four distinct criteria, each contributing to the final assessment of the visitor experience.

Scoring criteria

The experience itself measures what the visit or activity delivers. This criterion received a score of 7 out of 10. Strengths include access to a working research facility and focused solar-science interpretation.

Value measures what visitors get for what they spend. It also scored 7 out of 10. The lakeside setting is a notable strength for visitors interested in solar science.

Crowds and wait measure how busy the location gets and how long visitors might wait. This scored a 9 out of 10. A limit is that reservations fill well ahead of time.

Setting and access measure the surroundings and ease of arrival and parking. This criterion also received a 9 out of 10. Limits include gravel walking and the requirement of three flights of stairs.

Our verdict is that the research setting and specialized tour are distinctive. However, the short public-tour season and scarce reservations limit access for many.

Observatory background and instruments

Big Bear Solar Observatory was established between 1968 and 1969, with its formal dedication occurring on May 3, 1970. The site's consistent atmospheric steadiness is credited by the observatory for its suitability for solar observation. The primary instrument at the facility is a 1.6-meter clear-aperture, off-axis telescope. This instrument was previously known as the New Solar Telescope and is now referred to as the Goode Solar Telescope.

The observatory also uses separate full-disk telescopes. These are employed for H-alpha observations and for observing earthshine. The Goode Solar Telescope is utilized for detailed examinations of the Sun's chromosphere and photosphere, providing high-resolution data.

Technological advancements and data sharing

Big Bear Solar Observatory has developed adaptive-optics technology. Specifically, they created multi-conjugate adaptive optics, which increased the telescope's corrected optical field by a factor of three. This system employs deformable mirrors that adjust their shape hundreds of times each second to counteract atmospheric disturbances.

The adaptive-optics work undertaken at this observatory served as a foundational step for instrumentation planned for the Daniel K. Inouye Solar Telescope. The observatory provides data for research that investigates the Sun's surface, its extended atmosphere, and Earth's atmosphere.