Part 43

Calendar, the, 80.

Callisto, moon of Jupiter, 250.

Cancer, or the Crab, 350. tropic of, 61.

Canes Venatici, or the Hunting-Dogs, 334.

Canes Venatici, nebula in, 384.

Canis Major, or the Great Dog, 342.

Canis Minor, or the Little Dog, 340.

Capella, star in Auriga, 340, 343.

Capricorn, tropic of, 61.

Capricornus, or the Goat, 350.

Cassiopeia (constellation), 332. new star in, 362.

Castor, star in Gemini, 340, 370.

Caucasus, a lunar range, 124.

Centaurus, star-cluster in, 355.

Cepheus (constellation), 334. nebula in, 387.

Ceres, the planet, 241.

Cetus, or the Whale, 346. variable star in, 359.

Charles's Wain, 330.

Circles, great, 4. diurnal, 8. hour, 16. small, 4. vertical, 12.

Clock, astronomical, 18. time, 78.

Coma Berenices, or Berenice's Hair, 334.

Comet, Biela's, 293. and earth, collision of, 316. Coggia's, 297. Donati's, 296. Encke's, 293. Halley's, 291. of 1680, 290. of 1811, 290. of 1843, 295. of 1861, 297. of June, 1881, 300.

Comets, appearance of, 274. and meteors, 313. bright, 274. chemical constitution of, 318. development of, 277. number of, 288. orbits of, 282. origin of, 287. periodic, 286. physical constitution of, 314. tails of, 279. telescopic, 275, 281. visibility of, 281.

Conic sections, 48.

Conjunction, 91. inferior, 130. superior, 130, 136.

Constellations, 325. zodiacal, 32.

Copernican system, the, 44, 53.

Copernicus, a lunar crater, 120, 129.