The ConstellationsExplains the history, mythology, and science that make up the discipline of astronomy. Every constellation, from Andromeda to Virgo, is discussed and every important star, from Betelgeuse to Sirius, is explored. |
Contents
ONE Two Bears and a Dragon | 3 |
vi | 24 |
TWO Ursa Major and Ursa Minor | 25 |
Copyright | |
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Common terms and phrases
absolute magnitude Alpha ancient Andromeda apparent magnitude Arabic astronomical units BETA Betelgeuse blue-white bright brightest called celestial Cepheids clouds color companion components constellation core Cygni degrees northwest diameter Dipper discovered double Earth eclipsing emission emit fainter fourth-magnitude galactic GAMMA gaseous globular cluster Greek Hale Observatories heavens helium Hercules Herschel hydrogen interstellar ionized known lies light years distant luminosity luminous lying Lyrae main sequence main-sequence star Majoris miles per second Milky million miles naked-eye nebula northeast nova object observed open cluster Ophiuchus optical optical companion orbit Orion parsecs period photograph planetary primary proper motion quasars RA 12 h radiation radio red dwarf red giant Rigel rotation Scorpius shell Sirius small telescope solar southeast southern spectral class spectral lines spectral type spectroscopic binary spectrum star's stellar subgiant Sun's supergiant supernova temperature Ursa Major variable velocity Virgo visible white dwarf ZETA