Celestial hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  35 And  ·  Andromeda Galaxy  ·  M 110  ·  M 31  ·  M 32  ·  NGC 205  ·  NGC 221  ·  NGC 224  ·  The star 32 And  ·  The star ν And
Andromeda Galaxy (M31) 2023, Tommy Mastro
Andromeda Galaxy (M31) 2023
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Andromeda Galaxy (M31) 2023

Andromeda Galaxy (M31) 2023, Tommy Mastro
Andromeda Galaxy (M31) 2023
Powered byPixInsight

Andromeda Galaxy (M31) 2023

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Description

What is the nearest major galaxy to our own Milky Way Galaxy? Andromeda. In fact, 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. Much about M31 remains unknown, including exactly how long it will be before it collides with our home galaxy.

~NASA

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Andromeda Galaxy (M31) 2023, Tommy Mastro