Venus's atmosphere seen as a ring of light 56

View of Jupiter _facing_ 168

Three views of Saturn _facing_ 186

Diagram showing the moon's path through space 217

The lunar Alps, Apennines, and Caucasus _facing_ 222

The moon at first and last quarter _facing_ 226

Phases and rotation of the moon 250

Charts showing the zodiacal constellations:
1. From right ascension 0 hours to 4 hours 259
2. " " 4 " " 8 " 261
3. " " 8 " " 2 " 263
4. " " 12 " " 16 " 265
5. " " 16 " " 20 " 267
6. " " 20 " " 24 " 269




OTHER WORLDS