Andromeda Galaxy
Andromeda Galaxy
Andromeda Galaxy also Famous as Messier 31, M31, or NGC 224, The Andromeda Galaxy is often concern to as the Great Andromeda Nebula in older texts and is the nearby spiral galaxy to our own, the Milky Way. It is a spiral galaxy about 2,500,000 light-years (1.58×1011 AU) away in the constellation Andromeda. The former recorded module of the Andromeda Galaxy was in 964 CE by the Persian astronomer, Abd al-Rahman al-Sufi. Who depict it as a “small cloud” in his Book of Fixed Stars?
The individual stars in the image are foreground stars in our own galaxy. Andromeda Galaxy is this infrared view taken by NASA’s Spitzer Space Telescope it was interpreted as evidence that the neighboring dwarf galaxy M32 collided with the Andromeda Galaxy about 210 million years ago, plunging through its central disc.
Andromeda has a bright disk that is now conceive to span as much as 228,000 ly in width (Chapman et al, 2005). In 2005, astronomers declare that Andromeda’s disk actally extends far further out, so that the disk spans at least 260,000 light-years — nearly twice the size of the bright disk seen in photographs.
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