Explanation: Andromeda is the nearest major galaxy to our own Milky Way Galaxy. Our Galaxy is thought to look much like Andromeda. Together these two galaxies dominate the Local Group of galaxies. The diffuse light from Andromeda is caused by the hundreds of billions of stars that compose it. The several distinct stars that surround Andromeda's image are actually stars in our Galaxy that are well in front of the background object. Andromeda is frequently referred to as M31 since it is the 31st object on Messier's list of diffuse sky objects. M31 is so distant it takes about two million years for light to reach us from there. Although visible without aide, the above image of M31 is a digital mosaic of 20 frames taken with a small telescope. Much about M31 remains unknown, including how the center acquired two nuclei.

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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: M 31 - Andromeda galaxy - Local Group of Galaxies - Tumannost' Andromedy - Mestnaya gruppa galaktik Publikacii so slovami: M 31 - Andromeda galaxy - Local Group of Galaxies - Tumannost' Andromedy - Mestnaya gruppa galaktik
Sm. takzhe: M31: galaktika Andromedy Andromeda nad Al'pami Zvezdy Andromedy: nastoyashee i budushee Meteor i galaktika NGC 206 i zvezdnye oblaka Andromedy Neozhidannye oblaka v napravlenii na galaktiku Andromedy Oblaka vokrug galaktiki Andromedy Vse publikacii na tu zhe temu >>