HST pointing control system diagram

Hubble uses some very basic physics to turn itself around and look at different parts of the sky. Located on the telescope are six Gyroscopes (which, like a compass, always point in the same direction) and four free-spinning steering devices called reaction wheels.


NASA, ESA, A. Feild and K. Cordes (STScI), and Lockheed Martin

About the Image

NASA press release
NASA caption
Release date:1 September 2005, 04:00
Size:2100 x 1581 px

About the Object

Name:HST, Hubble Space Telescope
Type:Unspecified : Technology : Observatory : Telescope

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