wunder · LibraryPart Iv—the Fixed Stars.
Read in the Wunder reader — freePAGES
Division of the Stars into Magnitudes—Division of 219-257 the Stars according to their Spectra—Stars Larger and Smaller than the Sun—The Distances of the Stars—Variable Stars—Double and Binary Stars—Spectroscopic Binaries and how they are Discovered—Proper Motions of the Stars—Number of the Stars—New, or Temporary Stars—The Milky Way—The Nebulæ—The Two Kinds of Nebulæ—Spiral Nebulæ—The Nebular Hypothesis—Applications of Photography to Stars and Nebulæ—The Constellations—How to Learn the Constellations—Their Antiquity—Description of the Principal Constellations Visible from the Northern Hemisphere at Various Times of the Year
INDEX 259
------------------------------------------------------------------------
ILLUSTRATIONS
PAGE
THE LUNAR “CRATER” COPERNICUS Frontispiece
PHOTOGRAPH OF SOUTH POLAR 8 REGION OF THE MOON
THE MOON NEAR THE “CRATER” 20 TYCHO
DRAWING OF JUPITER 28
DRAWING OF JUPITER 28
JUPITER 38
SATURN 46
SATURN 46
THE MILKY WAY ABOUT CHI CYGNI 58
THE GREAT SOUTHERN 64 STAR-CLUSTER IN CENTAURI
PHOTOGRAPH OF A GROUP OF 76 SUN-SPOTS
POLAR STREAMERS OF THE SUN, 89 ECLIPSE OF 1889
SOLAR CORONA AT THE ECLIPSE OF 89 1871
MOREHOUSE'S COMET, OCTOBER 15, 96 1908
MOREHOUSE'S COMET, NOVEMBER 96 15, 1908
HEAD OF THE GREAT COMET OF 105 1861
HALLEY'S COMET, MAY 5, 1910 105
THE SIX-TAILED COMET OF 1744 112
SPIRAL NEBULA IN URSA MAJOR (M 124 101)
THE WHIRLPOOL NEBULA IN CANES 124 VENATICI
TRESS NEBULA (N. G. C. 6992) 132 IN CYGNUS
THE GREAT ANDROMEDA NEBULA 140
SPIRAL NEBULA IN CEPHEUS (H. 154 IV. 76)
NEBULOUS GROUNDWORK IN TAURUS 154
NEBULA IN SAGITTARIUS (M. 8) 162
THE GREAT NEBULA IN ORION 180
PHOTOGRAPHS OF MARS 200
SCHIAPARRELLI’S CHART OF 220 MARTIAN “CANALS”
ILLUSTRATIONS IN THE TEXT
THE RATIONAL AND THE SENSIBLE 12 HORIZON
ALTITUDE AND AZIMUTH 14
RIGHT ASCENSION AND 35 DECLINATION
THE ECLIPTIC AND CELESTIAL 51 LATITUDE AND LONGITUDE
HOW THE EARTH CONTROLS THE 75 MOON
THE TIDAL FORCE OF THE MOON 79
REFRACTION 85
DIP OF THE HORIZON 87
SIDEREAL AND SOLAR TIME 93
THE CHANGE OF DAY 101
THE SEASONS 107
PARALLAX OF THE MOON 139
PARALLAX OF THE SUN FROM 141 TRANSIT OF VENUS
SPECTRUM ANALYSIS 147
THE PHASES OF THE MOON 160
ORBITS OF MARS AND THE EARTH 183
ELLIPSE, PARABOLA, AND 203 HYPERBOLA
THE NORTH CIRCUMPOLAR STARS 244
KEY TO NORTH CIRCUMPOLAR STARS 245
------------------------------------------------------------------------
Astronomy in a Nutshell · The Wunder Library — complete classics, free to read, with narration.