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Appalachian State University - Fall 2012 | ||
Section 101 | ||
 | Understanding Variable Stars (Cambridge Astrophysics) (1st Edition) by John R. Percy Hardcover, 374 Pages, Published 2007 ISBN-10: 0-521-23253-8 / 0521232538 ISBN-13: 978-0-521-23253-1 / 9780521232531 This book was first published in 2007. Variable stars are those that change brightness. Their variability may be due to geometric processes such as rotation, or eclipse by a companion star, or physical processes such as vibration, flares, or cataclysmic explosions. In each case, variable stars provi | |