Graun, Ken What's out tonight ? celestial almanac & astronomy field guide 2000 to 2050 Ken Graun - 3rd ed. - Tucson Ken Press 2007 - 400p. ISBN: 978-1-928771-50-0 Subjects--Topical Terms: Astronomy-Amateurs' manualAstronomy-observer's manuals Universal Decimal Class. No.: 52(035) / GRA