distance, 297 phases, 299 "seas," 302, 303 mountains, 303, 304, 305 craters, 307, 309, 311, 312, 313, 314 atmosphere, 300, 301 shadows, 219, 220, 305, 307 Moon-goddess, 175 Morning Star, 247, 248 Moreaux, 279 Mountains of eternal light, 304 Mount Wilson Observatory, 10, 72, 99, 111, 124, 153, 172, 206, 265, 297, 305 Moulton, 61, 101, 221, 287 Mowers, Three, 176 Multiples, 140 Music, God of, 118 Music of the Spheres, 5, 200 Muses, 30, 69, 74, 76, 77 Muses, Grove of, 76 Myra, 81, 82 Mythology, 17, 18, 22, 23 Naked-eye double, 39 Naiads, 17 Names of stars, 11 Nebula of Andromeda, 72, 180 Nebula of Orion, 15, 178, 180 Nebulæ, 94, 98, 116, 124, 146, 178, 185, 210 Nebular Hypothesis, 285 Nectar, 24 Nemea, 89 Nemean Games, 89 Nemean Lion, 87, 88, 89 Neptune, god, 17, 21, 23, 24, 56, 76, 130, 131 Neptune, planet, 227, 228, 232, 251, 260, 282, 284 discovery, 282 orbit, 283 revolution, 283 diameter, 282 satellite, 259, 283, 284, 297 Nereids, 56 Newton, 56, 283 Nile, 161 Nile Star, 162 North Star, 7, 8, 9, 38, 40, 41, 44, 58, 59, 114, 140, 141, 177 Northern Cross, 5, 88, 115, 121, 122, 124, 125, 192, 208 Northern Crown, 101, 102, 103 Northern Fish, 157 Nova, 61 November meteors, 90, 91 Oberon, 282 Ocean of Storms, 303 Olbers, 233, 234 Olcott, 50, 160 Ophiuchus, constellation, 109, 110, 134 Legend, 127, 169 Olympus, Mount, 17, 20, 21, 24, 33, 77, 118, 128, 137 On His Knees, 105 Oracle, 17, 24, 56 Orange stars, no, 111, 121, 135, 194 Oriental Legend, 66 Orion, constellation, 5, 6, 28, 33, 81, 115, 125, 140, 167, 170, 171, 181, 191, 210 Orion's Belt, 11, 164, 176 Orion's Head, 175 Orion's Dogs, 164, 180 Nebula, 15, 178, 180 Betelgeuse, 13, 171, 172, 173 Rigel, 173, 174 Legends, 152, 167, 168, 169, 170, 183, 185, 189 Orpheus, 25, 49, 88, 113, 116, 118, 120, 121, 193 Osborn, 162 Ossa, Mount, 21, 22 Ovid, 23, 24, 29, 38, 45, 49, 97, 120, 125, 133, 150, 204, 205 Ox-driver, 38