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 Antares apparent magnitude Aquila Arabians Arabic astronomical units BETA Betelgeuse blue-white bright brightest star called celestial Cepheids clouds components constellation Cygni degrees northwest degrees south diameter Dipper discovered double east eclipsing elliptical emission EPSILON Euphratean faint fainter fifth-magnitude fourth-magnitude galactic GAMMA gaseous globular cluster Greek Hale Observatories heavens Hercules Herschel hydrogen interstellar known lies light years distant luminosity luminous lying Lyrae main sequence main-sequence star miles per second Milky million miles naked-eye nebula northeast nova object observed open cluster Ophiuchus optical companion orbit Orion parsecs period Perseus photograph planetary primary proper motion quasars RA 12 h radiation radio red giant rotation Scorpius separation shell Sirius small telescope solar southeast southern southwest spectral class spectral lines spectral type spectroscopic binary spectrum spiral galaxy star's stellar subgiant Sun's supergiant supernova Ursa Major variable velocity Virgo visible ZETA