The Sky at Night

Season 13, Episode 10

Episode Title: Stars that Come and Go

Air Date: 1969-10-07

Overview:

Most stars remain unchanging over huge periods of time; but some continually vary in brightness. Only long observation can reveal their secrets, and much of this patient work is done by amateurs. Patrick Moore describes the different types of variable stars, and discusses with John S. Glashy the vital role of amateur observers