By Sissy Haas This annotated catalog, compiled by one of today's most experienced double-star observers, is as user friendly as it is comprehensive! More than 2,100 of the sky's most alluring double and multiple stars are listed with coordinated, brightnesses, colors, and informative commentaries. Make it an essential part of your astronomy library. Product Information 180 pages 8 1/2 by 11 inches Softcover |