There is a neat size comparison of the Andromeda galaxy (178 x 63 arc minutes) and the moon (30 x 30 arc minutes) on APOD: http://apod.nasa.gov/apod/ap061228.ht

There is a neat size comparison of the Andromeda galaxy (178 x 63 arc minutes) and the moon (30 x 30 arc minutes) on APOD: http://apod.nasa.gov/apod/ap061228.html http://apod.nasa.gov/apod/ap061228.html