Asteria — interactive night sky map
Triangulum Galaxy (Messier 33) is a galaxy in the constellation Triangulum with an apparent magnitude of 5.7, spanning about 62 arcminutes. Under dark skies it can be spotted with the naked eye.
It is best placed in the evening sky around October. It is visible from the whole northern hemisphere and from southern latitudes down to about 59°S. It is circumpolar (never sets) north of latitude 59°N.