The aluminum-domed Crosby Observatory atop Orlando Science Center houses Florida’s largest publicly accessible refractor telescope. This one-of-a-kind custom-built telescope, along with several smaller scopes, are available at selected times for solar and night sky viewing.

Peer through the powerful, 10-inch lens of the refractor telescope to view the planets, the four moons of Jupiter, the rings of Saturn and deep sky objects such as galaxies, nebulas and double stars.


All activities and events in the Crosby Observatory are weather permitting only.

Observatory hours are subject to change based on weather conditions in the area.

Science Night Live

Upcoming Dates: August 18 & October 6. Please check the Science Night Live page for more details.

An “adult swim” of the science variety, the event features everything great about the Science Center. Experience all four floors of exhibits, films and hands-on programming aimed specifically for grown-ups, while enjoying adult food and beverages available for purchase. Must be 21 and older.



Science After Sundown

Fridays & Saturdays, July 6 through August 11. Observatory will be open from 7 p.m. to 11 p.m.

This summer, when the sun goes down, your IQ goes go up as you experience science fun and discovery, plus a few added surprises, during late nights at Orlando Science Center. Science After Sundown is your chance to get stellar views of the night sky by joining our veteran sky-watchers in the observatory. These late nights will offer the best views!


Local Astronomy Group

Interested in joining a local astronomy group? Check out the Central Florida Astronomical Society.

CFAS activities include monthly meetings featuring guest speakers, monthly observing sessions at several sites across Central Florida, publication of a web information site, and public observing sessions when events of significant interest occur. For more information, visit their site at

The Crosby Observatory is also available for private star-gazing parties – visit Meetings & Events for more information.


Astronomy Question & Answer Email

Got a question of a celestial nature? Email us and we will get you an answer!



You can Adopt-A-Star in support of our astronomy programs. Orlando Science Center adoptions make unique gifts, great class projects and fun family activities. Adoption packets include personalized certificates, educational material and more.

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