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Astronomy Image of the Day

Moon Occults Saturn

24 September 1997

K. Stanek (CfA), W. Colley (Princeton)

NASA Astronomy Image of the Day for 24 September 1997

Many stargazers in the U. S. were able to watch a lovely lunar occultation early last Thursday morning as a bright Moon passed in front of Saturn. Using a 1.2 meter reflector, astronomer Kris Stanek had an excellent view of this dream-like event from the Whipple Observatory atop Arizona's Mount Hopkins. This animated gif image was constructed by Wes Colley from 4 frames taken by Stanek at 35 second intervals as the ringed planet emerged from behind the Moon's dark limb. While lunar occultations of fairly bright stars and planets are not extremely rare events, their exact timing depends critically on the observer's location.

Image and explanation courtesy of NASA Astronomy Picture of the Day