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 |
X | 19 |
TWO Ursa Major and Ursa Minor | 25 |
Copyright | |
16 other sections not shown
Other editions - View all
Common terms and phrases
absolute magnitude Alpha ancient Andromeda apparent magnitude Arabic astronomical units BETA Betelgeuse blue-white bright brightest called Cassiopeia celestial center of mass Cepheids Cepheus clouds color companion components constellation core degrees northeast diameter Dipper discovered double Earth eclipsing emission EPSILON 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 miles per second million miles nebula northwest novae nucleus object observed open cluster optical optical companion orbit Orion parsecs period Perseus photograph planetary primary proper motion RA 12 h RA 5 h radiation radio red dwarf red giant Rigel rotation 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 Ursae Majoris variable velocity visible white dwarf Zeta