ortense, 3, 4

Le Verrier, 167

Little Bear, 35

Little Dog, 50

Lockyer, 102

Longitudes, 226

Lucifer, 122

Lunar Apennines, 251
landscape, 254
topography, 252

Lyre, 40

M

Mars, 131
chart of, 140

Measurement, 289

Medes and Lydians, 266

Mercury, 114

Meteorites, 201

Meteors, 190, 191

Metonic Cycle, 271

Milky Way, 78, 87

Mira Ceti, 77

Mitchell, Maria, 7

Mizar, 34, 69

Moon, 232
diameter of, 242
distance of, 292
geological features of, 245
map of, 247
mountains of, 246
phases of, 241
photograph of, 240
revolution of, 234
rotation of, 242
size of, 242
temperature of, 250
total eclipse of, 263

N

Nebula, in Andromeda, 81
in Orion, 81
in the Greyhounds, 82

Neptune, 65, 166
revolution of, 169

Newton, 181

Nucleus, 95, 185

O

Orion, 48, 49, 81

P

Parallax, 292, 293
annual, 306

Pearl, 40

Pegasus, 38

Penumbra, 96

Periodic Comet, orbit of, 182

Perseids, 195

Perseus, 38, 70, 78

Phenician navigators, 30

Phoebus, 67

Photosphere, 101

Piazzi, 147

Planets, 109, 113, 146
distances, 110, 302
orbits of, 115
orbits of, 116

Pleiades, 38, 39, 44, 83
occultation of, 85

Pleione, 84

Polaris, 63

Pole-star, 34, 63

Poles, 225

Pollux, 44

Pope Calixtus, 176

Prodigies in the heavens, 178

Ptolemy, 31, 217

R

Radiant, 195

Riccioli, 246

Rigel, 49, 70

Roberts, Mrs. Isaac, 7

S

Saidak, 34

Saros, 271

Satellites, 110

Saturn, 156
revolution of, 157
satellites, 162, 165
volume, 158

Saturn's rings, 161

Scarpellini, Madame, 7

Scheiner, 95

Schiaparelli, 139

Secchi, Father, 7

Seven Oxen, 32

Sextuple star, 74

Shepherd's Star, 11

Shooting stars, 193, 194, 196

Sirius, 66, 309

_Solar storms_, 100
flames, 105
system, 65

Somerville, Mrs., 6

Spring constellations, 52

Stars, distances, 62
double, 68, 70
first magnitude, 57
number of, 60
quadruple, 73
second magnitude, 58
shooting, 193, 194
temporary, 77

Stars, triple, 72
variable, 75
weight of, 313

Star cluster in Hercules, 79
in the Centaur, 80

St. Catherine, 3

Summer constellations, 53