M31 The Andromeda Galaxy

Posted on September 9, 2024  •  1 minutes  • 102 words

图文来源自：nasa. copyright: Subaru

The most distant object easily visible to the unaided eye is,the great .Even at some two and a half million s distant, this immense spiral galaxy – spanning 200,000 light years – is visible, although as a faint, nebulous cloud in the.A bright yellow nucleus, dark winding , andexpansive spiral arms dotted with s and , are recorded in which combines data from with ground-based images from and .In only about 5 billion years, the Andromeda galaxy may be even – as it will likely span the entire night sky – just before it with, or by, our .