The following sky notes describe what may be seen in the night sky, soon after sunset at the beginning of October, for an observer situated in the UK.
The distinctive “W” of Cassiopeia is almost overhead by late evening. Use this to locate the “Square of Pegasus” which is to the south. From the top-left star of the “Square” follow a line of three stars forming part of Andromeda. From the second of these stars turn right and at right angles through two stars to reach a faint elongated patch of light – the Andromeda Galaxy, M31 - the most distant object normally visible to the naked eye.