Wiktionary
lunar phases
n. (lunar phase English)
Usage examples of "lunar phases".
Some of the back dials seem to indicate the main lunar phases, while others are thought to give information on the planets Mercury, Venus, Mars, Jupiter, and Saturn, then known to the Greeks.
Jeremy could manage to locate a bright moon in a clear sky, though for him its image had never been more than a blur and talk of lunar phases was practically meaningless.