仙女座星系

本星系群中最大的星系，也是肉眼可见最远的天体。它正落向银河系。

图片挂在该距离处，朝向地球，大小与它在天空中一样；看不出天体有多深，所以它是平的。

拍摄者

数字化巡天

图片跨度

约 160,000 ly

距太阳

254万 光年

赤经 / 赤纬

10.68° / 41.27°

来源

Digitized Sky Survey 2 (STScI/AURA, Palomar/Caltech, UKSTU/AAO), via CDS hips2fits

The Andromeda Galaxy is a barred spiral galaxy and is the nearest major galaxy to the Milky Way. It was originally named the Andromeda Nebula and is cataloged as Messier 31, M31, and NGC 224. Andromeda has a D25 isophotal diameter of about 46.56 kiloparsecs (152,000 light-years) and is approximately 765 kpc (2.5 million light-years) from Earth.

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