Dr John Mason talks to Patrick Moore about galaxies that northern hemisphere stargazers can see with binoculars in the autumn night sky. They include the Andromeda galaxy, M31, and the Triangulum galaxy, M33. Both can be found using the constellations Pegasus and Andromeda as a guide.

Astronomer Dr John Mason talks to Patrick Moore about some of the interesting sights that stargazers in the northern hemisphere can see when looking north in the autumn. Using the familiar Plough as their guide they discuss features that can be easily seen in the constellations of Cassiopeia and Perseus - including star clusters and double stars.

Patrick Moore and his guest Dr John Mason discuss the main constellation northern hemisphere stargazers can see when looking south in autumn - Pegasus. In mythology Pegasus was a flying horse, in the night sky it is a square. Sights in this region of the sky include star clusters and a group of five galaxies called Stephan's Quintet.

The Sky at Night guest Pete Lawrence explains how to find the Crab Nebula, a supernova remnant, in the night sky and discusses its beauty and history.