#GalaxyAndromeda | Infrared The Andromeda Galaxy, also known as Messier 31, M31, or NGC 224, is a spiral galaxy approximately 780 kiloparsecs (2.5 million light-years) from Earth. It is the nearest major galaxy to the Milky Way and was often referred to as the Great Andromeda Nebula in older texts. It received its name from the area of the sky in which it appears, the constellation of Andromeda, which was named after the mythological princess Andromeda.
Spitzer found that halo around the Sombrero Galaxy is larger and more massive than previously thought, indicative of a giant elliptical galaxy . The galaxy has an apparent magnitude of + 9.0, making it easily visible with amateur telescope, and it's considered by some authors to be the brightest galaxy within of 10 megaparsecs of the Milky Way.