[Roman figures refer to the chapters, Arabic to the articles.]
Morning star, i. 14. See also Venus
Morocco, iii. 61
Motion, laws of. See Laws of motion
Multiple stars. See Stars, double and multiple
Music of the spheres, ii. 23; vii. 144
Mysterium Cosmographicum (of Kepler), v. 108; vii. 136, 144
Nadir, iii. 64
Nautical Almanac. See Almanac, Nautical
Nebula in Argus, xiii. 307
Nebula in Orion, xii. 252, 259, 260; xiii. 311
Nebulae, x. 223; xi. 250; xii. 252, 256, 259–261; xiii. 306–308, 310, 311, 317, 318, 319, 320
Nebulae, spiral, xiii. 310
Nebular hypothesis, xi. 250; xiii. 318–320
Nebulous stars, x. 223; xii. 260, 261
Neptune, satellite of, xiii. 295
New Almagest (of Kepler), vii. 148
New Almagest (of Riccioli), viii. 153
New moon. See Moon, phases of
New stars. See Stars, new
New Style (N.S.), ii. 22. See also Calendar, Gregorian
Newton's problem, xi. 228, 229, 249
Newtonian telescope, ix. 168; xii. 252, 253, 256
Night-hour, i. 16
Node, ii. 40, 43; v. 111; ix. 184; x. 213, 214; xi. 236, 246
Nubeculae, xiii. 307
Nucleus (of a comet), xiii. 304
Nürnberg school, iii. 68; iv. 73
Nutation, x. 206, 207, 213–215, 216, 218; xi. 232, 248; xii. 263
Νυχθήμερον, i. 16 n
Oberon, xii. 255
Obliquity of the ecliptic. See Ecliptic, obliquity of
Observational astronomy, xiii. 272, 273
Octaeteris, ii. 19
Olbers's comet, xiii. 291
Old Moore's Almanack, i. 18 n
Old Style (O.S.). See Calendar, Julian
Opposition, ii. 43, 48 n; iii. 60; iv. 87, 88; v. 111; viii. 161; xiii. 281, 284, 297
Opposition of Mars, viii. 161; xiii. 281, 284, 297
Optical double stars, xii. 264
Optics (of Gregory), x. 202
Optics (of Newton), ix. 192
Optics (of Ptolemy), ii. 46
Optics (of Smith), xii. 251
Opus Majus, Minus, Tertium (of Bacon), iii. 67
Opuscules Mathématiques (of D'Alembert), xi. 233
Orion, nebula in, xii. 252, 259, 260; xiii. 311
Oscillatorium Horologium (of Huygens), viii. 158; ix. 171
Pallas, xiii. 294
Parabola, ix. 190; xi. 236 n; xiii. 276
Parallactic inequality, xiii. 282
Parallax, ii. 43, 49; iv. 85, 92; v. 98, 100, 110; vi. 129; vii. 145; viii. 161; x. 207, 212, 223, 227; xii. 257, 258, 263, 264; xiii. 272, 278, 279, 281–284
Parallax, annual, viii. 161. See also Parallax, stellar
Parallax, horizontal, viii. 161
