INDEX
- Aberration, 88
- Alpha Centauri, 145
- Alpha Draconis, 62
- Altitude, 13, 14
- Andromeda, nebula in, 236
- Antares, 24
- Aphelion, 8
- April, aspect of sky in, 251
- Arcturus, 224
- Asteroids, the, 187
- Atmosphere, the, 82
- August, aspect of sky in, 253
- Azimuth, 13, 14
- Beta Aurigæ, 230
- Binary (and multiple) stars, 226
- Binaries, spectroscopic, 227
- Calendar, the, 117
- Calorie, measure of sun's heat, 129
- Cassiopeia, 22
- Cheops, pyramid of, 62
- Chromosphere, of sun, 135
- Circles, vertical, 15;
- Circumpolar stars, 224
- Clock, the astronomical, 41, 90
- Comets, 201, 203
- Constellations, the, 241
- Corona, of the sun, 135
- Coronium, 152
- Corona Borealis, 24
- Day, change of, 99, 101
- Day and night, 96
- December, aspect of sky in, 256
- Declination, 31, 35
- Dipper, the Great, 21;
- the Little, 23
- Earth, description of the, 67;
- weight of, 73
- Eclipses, 163
- Ecliptic, 43
- Elements, chemical, in the sun, 151
- Equator, 38
- Equinoxes, 45
- Eros, the asteroid, 142
- February, aspect of sky in, 249
- Galaxy, the, 233
- Gravitation, laws of, 70
- “Greenwich of the Sky,” 32
- Heavens, apparent motion of, 19
- Helium, 152
- Horizon, 10, 12;
- dip of, 86
- Hour Circles, 31
- January, aspect of sky in, 248
- July, aspect of sky in, 252
- June, aspect of sky in, 252
- Jupiter, the planet, 189
- Kepler, laws of, 173
- Latitude, terrestrial, 30;
- Light, pressure of, 206
- Longitude, terrestrial, 30;
- Magnitudes, stellar, 220
- March, aspect of sky in, 250
- Mars, the planet, 181
- May, aspect of sky in, 251
- Mercury, the planet, 175
- Meteors, 210
- Meteorites, 214
- Milky Way, the, 233
- Molecules, escape from planetary atmospheres, 158
- Moon, description of, 153;
- how earth controls, 75
- Motion, proper, of solar system, 232
- Nadir, 11
- Nebulæ, 236
- Nebular Hypothesis, 239
- Neptune, the planet, 199
- Noon-line, 12
- North Point, 20
- North Pole, 27, 37
- North Star, 20, 27, 61
- November, aspect of sky in, 255
- Nutation, 63
- Oblique sphere, 39
- October, aspect of sky in, 254
- Oppositions, of Mars, 183
- Orbits of planets, 7, 52
- Orion, nebula in, 236
- Parallax, 136, 139
- Parallel sphere, 38
- Perihelion, 8
- Phases of the moon, 160
- Photography, in astronomy, 240
- Photometry, of stars, 220
- Photosphere of sun, 134
- Planets, description of the, 172
- Polar circles, 111
- Precession of the Equinoxes, 55
- Refraction, 83, 85
- Right Ascension, 31, 35
- Right sphere, 39
- Rotation, effect of earth's, 5
- Saturn, description of, 195
- Seasons, the, 104, 107;
- secular change of, 115
- September, aspect of sky in, 254
- Signs of Zodiac, 54
- Spectroscopic analysis, 145, 147;
- shifting of lines, 227
- Sphere, celestial, 9
- Solstices, the, 47
- Stars, the fixed, 219;
- Sun, the description of, 127
- Sun-spots, 131
- Temperature, of sun, 130
- Temporary stars, 235
- Tides, the, 76, 79
- Time, 89;
- sidereal and solar, 93
- Transits, of Venus, 140, 141
- Tropics, the, 111
- Universe, appearance of, 8
- Uranus, description of, 199
- Ursa Major, 21
- Variable stars, 225
- Vega, 63
- Venus, the planet, 178
- Vernal Equinox, 32, 42, 46
- Zenith, 10
- Zodiac, 50
- Transcriber’s Notes:
- New original cover art included with this eBook is granted to the public domain.
- Missing or obscured punctuation was silently corrected.
- Typographical errors were silently corrected.
- Inconsistent spelling and hyphenation were made consistent only when a predominant form was found in this book.