Explanation: The Great Spiral Galaxy in Andromeda (also known as M31), a mere 2.5 million light-years distant, is the closest large spiral to our own Milky Way. Andromeda is visible to the unaided eye as a small, faint, fuzzy patch, but because its surface brightness is so low, casual skygazers can't appreciate the galaxy's impressive extent in planet Earth's sky. This entertaining composite image compares the angular size of the nearby galaxy to a brighter, more familiar celestial sight. In it, a deep exposure of Andromeda, tracing beautiful blue star clusters in spiral arms far beyond the bright yellow core, is combined with a typical view of a nearly full Moon. Shown at the same angular scale, the Moon covers about 1/2 degree on the sky, while the galaxy is clearly several times that size. The deep Andromeda exposure also includes two bright satellite galaxies, M32 and M110 (below and right).

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: Moon - Tumannost' Andromedy - Luna - Andromeda galaxy Publikacii so slovami: Moon - Tumannost' Andromedy - Luna - Andromeda galaxy
Sm. takzhe: NGC 206 i zvezdnye oblaka Andromedy Zahod Zemli s "Oriona" Apollon-12 i Serveior-3 Naidite cheloveka na Lune "Muna Liza" M31: galaktika Andromedy Luna v poslednei chetverti i zvezdy-sestry Vse publikacii na tu zhe temu >>