COLOUR CONTRASTING DOUBLE STARS (NEW CHALLENGES FOR AMATEUR ASTRONOMERS Book 1)

Are you bored at looking at the same old sky objects? Do you want a new challenge? This book contains full details of over 550 colour contrasting double stars with both components brighter than magnitude 12 and with an angular separation of between 5 and 20 arc seconds. None appear in the usual celestial highlights lists. This is an excellent way of introducing yourself to the pleasures of observing binary and double stars.