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Section 001 | ||
 | Peterson First Guide to Astronomy (Reprint Edition) by Roger Tory Peterson (Editor), Professor Jay M. Pasachoff, Robin Brickman (Illustrator), Wil Tirion (Illustrator), Peterson Gdes. Paperback, 128 Pages, Published 1998 ISBN-10: 0-395-93542-3 / 0395935423 ISBN-13: 978-0-395-93542-2 / 9780395935422 Jay M. Pasachoff Roger Tory Peterson. White. Dwarfs. and. Supernovae. When a star — a hot ball of gas — uses up the nuclear fuel near its center. it collapses. How it ends up depends on how much mass it had. A star with as much mass or less mass than the sun gives off a planetary nebula. The nebu | |