Part 21

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.