Andromeda (M31)

Andromeda (M31)
Andromeda is a beautiful spiral galaxy and the only galaxy visible to the naked eye from Earth’s northern hemisphere. It has dim, red-giant stars (not visible
here) extending half a million light-years from its nucleus. Without a telescope, Andromeda appears to be a fuzzy blob in the constellation of the
same name. Located only 2.5 Mly (0.77 Mpc) from us, Andromeda is gravitationally bound to the Milky Way, and it covers an area in the sky
roughly 5 times as large as the full Moon. Two other galaxies, M32 and M110, are also labeled on this photograph. The points of light that pepper the image
are stars in our Galaxy.