Adams, 236–238.
Alcor, star in Great Dipper, 105, 236.
Aldebaran, first-magnitude star, 79–80, 153, 188, 210.
Antares, star in Scorpio, 86, 153, 160, 187, 189, 209, 212.
Aquarius, constellation of the zodiac, 76, 88–89, 91–92, 187, 212–213, 221, 242.
Arcturus, 24, 84;
color of, 102.
Ariel, satellite of Uranus, 232–233.
Aries, constellation of the zodiac, 76–78, 90–92, 212, 242.
Asteroids, 244–257.
Bee-hive, 82, 211–212.
Bode’s law, 245–249.
BoÖtes, star of first magnitude, 102.
Callisto, satellite of Jupiter, 200, 205.
Cancer, constellation of zodiac, 76, 82, 91–92, 188, 211–212.
Capella, star of first magnitude, 191.
Capricornus, one of the twelve constellations of the zodiac, 76, 88–89, 91–92, 187, 212, 229.
Cassiopeia, constellation, 77.
Castor and Pollux, 81, 188, 211, 242–243.
Ceres, first planetoid discovered, 251, 253.
Constellations of the zodiac, 75–92.
Deimos, satellite of Mars, 180–181.
Dione, satellite of Saturn, 222.
Earth, relation to planets, 11–15, 19;
nearness to sun, 19;
terrestrial planet, 41;
movement of, 51;
position in regard to Mercury, 120–121;
likeness to Venus, 138–140.
Enceladus, satellite of Saturn, 222.
Encke’s comet, 109.
Equinox, derivation of word, 74.
Eros, small planet, 255–256.
Europa, satellite of Jupiter, 200–201.
Flagstaff, Arizona, observatory of, 175–176.
Fomalhaut, 187, 209, 213.
Galileo, 136.
Ganymede, satellite of Jupiter, 200–201, 205.
Gemini, constellation of the zodiac, 76, 81–82, 91–92, 188, 210–211, 213.
George III., Uranus first called Georgium Sidus after, 226.
Great Dipper, 73, 77, 84, 96, 104, 105, 186, 236.
Hamal, star in constellation of Aries, 78.
Herschel, discovery of Uranus by, 226–227, 232.
Hyades, the, 79.
Hyperion, satellite of Saturn, 222.
Inferior planets, 40.
Io, satellite of Jupiter, 200, 201.
Japetus, satellite of Saturn, 222.
Juno, planetoid, 251, 253.
Jupiter, color, 5;
attraction between Saturn and, 15;
distance from sun, 19;
size and importance of, 20;
movement, 25, 65;
satellites, 34, 106, 199–205;
long known, 38;
superior planet, 41;
space between Mars and, 42;
influence on comets, 44;
gibbous, 66;
distance from ecliptic, 72;
near Antares, 86;
in Scorpio, 127;
size and velocity, 183–185;
place in sky, 186–190;
distance, light, and heat, 190–193;
seasons and atmosphere, 193–195;
surface features, 195–199;
symbol, 205;
compared to Saturn, 213–214, 215–218;
nearness of asteroids to, 244;
how to recognize, 259–264.
Laplace, nebulÆ hypothesis of, 28, 30.
Leo, constellation of zodiac, 76, 82–83, 91–92, 188, 211–212, 221.
Leverrier, discovery of Neptune by, 236–238.
Libra, constellation of zodiac, 76, 85, 91–92, 188, 212.
Little Dipper of the Pleiades, 79.
Lyre, constellation of the, 54.
Major planets, 19.
Mars, “eye” of, 12;
distance from sun, 19;
nearness to earth, 20;
movement of, 25, 65;
long known, 38;
superior planet, 41;
space between Jupiter and, 42;
speed, 51;
gibbous, 66;
distance from ecliptic, 72;
color, 80, 86, 259;
position in regard to Antares, 87;
density, 110;
nearness to Venus, 128;
variety in brightness, 151–152;
how and where to identify, 152–162, 259–265;
size, atmosphere, and temperature, 162–165;
distance and brilliancy, 166–170;
seasons, 170–171;
surface aspect, 172–179;
satellites, 180–181;
symbol of, 182;
nearness of asteroids to, 244;
Bode’s law and, 245–246, 248–249;
smallness, 260.
Mercury, 18;
nearest planet, 19;
unfavorable situation for observation, 20;
easily recognized, 22;
age of, 34;
dense matter of, 37;
long known, 38;
inferior planet, 40;
terrestrial planet, 41;
irregularities of, 44–45;
number of revolutions, 47;
orbit, 48;
apparent motions, 57–58;
transits, 61;
distance from ecliptic, 72–73;
color, 80, 86;
in Scorpio, 87;
elusiveness of, 93–95;
how to find, 96–100, 259;
distance and brightness of, 101–105;
size, 106–110;
relation to sun, 111–118;
transits, 119–121;
lack of atmosphere, 144, 146;
resemblance to Mars, 153;
Bode’s law and, 245.
Milky Way, 87, 88, 89.
Mimas, satellite of Saturn, 222.
Minor planets, 19.
Mizar, star in Great Dipper, 105, 236.
Moon, 23;
once called planet, 39;
distance from ecliptic, 73.
Moulton, Professor, 178.
Neptune, discovery, 15;
distance from sun, 19, 43;
not visible to naked eye, 20;
age, 34;
diffuse matter of, 37;
unknown to ancients, 40;
superior planet, 41;
influence on comets, 44;
one revolution, 47;
orbit, 48;
movement of, 65;
distance from earth, 234;
discovery, 235–237, 247;
symbol, 238;
atmosphere, 239–240;
satellite, 241;
motion, 242;
brightness, 243.
Oberon, satellite of Uranus, 232–233.
Orion, 123.
Pallas, planetoid, 251.
Phecda, star in Great Dipper, 104.
Phobos, satellite of Mars, 180–181, 202.
Phoebe, satellite of Saturn, 222–223.
Pisces, constellation in zodiac, 76–77, 90–92, 160, 187, 212, 242.
Pleiades, 79–80, 153, 188, 210.
PrÆsepe, or the Bee-hive, 82, 211–212.
Regulus, star in the constellation of Leo, 83–84, 188, 212.
Rhea, satellite of Saturn, 222–223.
Sagittarius, constellation of zodiac, 76, 87–88, 91–92, 186, 189, 209, 212, 229.
Saturn, rings and moons of, 12, 218–223;
?distance from sun, 13, 19;
?attraction between Jupiter and, 15, 185;
?size and importance, 20;
?object-lesson from, 29;
?long known, 38;
?superior and outer planet, 41–42;
?influence on comets, 44;
?length of year on, 47;
?movement, 65;
?distance from ecliptic, 72;
?satellites, 106;
?color, 206, 209, 259;
?as evening star, 207;
?slight motion, 208;
?circuit of skies, 209–213;
?size and distance, 213–215;
?surface aspects, 215–216;
?day and night, 217–218;
?seasons, 224;
?symbol, 224;
?Bode’s law and, 245–246;
?how to recognize, 260–264.
Schiaparelli, 174–175.
Scorpio, constellation of zodiac, 76, 85–88, 91–92, 127, 153, 186, 188, 212–213.
Sidereal year, 49̵

THE END

1 The reader will find fuller descriptions of the stars in the zodiac in The Friendly Stars, by the author of this book.