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Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

See Explanation. Clicking on the picture will download the highest resolution version available.

Comet Holmes Over Hungary

Explanation: Comet Holmes refuses to fade. The unusual comet that surprisingly brightened nearly a million-fold in late October continues to remain visible to the unaided eye from dark locations . Night to night, Comet 17P/Holmes is slowly gliding through the constellation Perseus , remaining visible to northern observers during much of the night right from sunset. Pictured above , Comet Holmes was captured from Hungary last week. The remarkable snowball continues to retain a huge coma , but now shows very little of a tail . To the far right is the open cluster of stars NGC 1245 . How much longer Comet Holmes will remain visible to the unaided eye is unknown.

Date December 5, 2007
Credit Credit & Copyright: Tamas Ladanyi
Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.