Sun, controls planets, 14, 17; distance from earth, 18; center of planet system, 27; probable formation of, 36; once called planet, 39; situation in orbit, 52; vernal equinox, 76; relation to Mercury, 111–118; relation to Mars, 166–167; relation to Jupiter, 183–185. Superior planets, 41, 65–70. Symbols in almanacs, 267. Synodic year, 50, 52. Taurus, constellation in zodiac, 76, 79–80, 90–92, 188, 210, 212, 242. Tethys, satellite of Saturn, 222. Themis, satellite of Saturn, 222–223. Titan, satellite of Saturn, 222–223. Titania, satellite of Uranus, 232. Triangulum, 78. Umbriel, satellite of Uranus, 232–233. Uranus, gravitational influence on, 15; distance from sun, 19, 229–230; unknown to ancients, 40; superior planet, 41; influence on Neptune, 43; influence on comets, 44; movement, 65; nearness to ecliptic, 72; discovery, 225–226, 246; symbol, 227; time of revolution, 228; size, 231; satellites, 232–233; irregularity of, 236. Vega, in constellation of the Lyre, 54, 191, 266. Venus, the planet, 2, 4, 5; nearness to sun, 19; nearness to earth, 20, 256; movement of, 25; long known, 38; early names of, 39; inferior planet, 40; terrestrial planet, 41; brightest planet, 42; apparent motions, 57–58; transits, 61; distance from ecliptic, 72; seen from Mercury, 105; density, 110; beauty, 122; how and when to see, 123–131; distance and brightness, 132–137; likeness to earth, 138–140; atmosphere and seasons, 141–147; transits, 147–149; sign of, 150; Bode’s law and, 245; how to know, 259–264. Vesta, planetoid, 251, 253, 254, 257. Virgo, constellation of the zodiac, 76, 84–85, 188, 212. Zodiac, the, 71–92. THE END End of Project Gutenberg's The Ways of the Planets, by Martha Evans Martin