1. New Moon: The moon is not visible from Earth.
2. Waxing Crescent: A sliver of the moon becomes visible, growing larger each night.
3. First Quarter: Half of the moon is illuminated, appearing as a semicircle.
4. Waxing Gibbous: More than half of the moon is illuminated, growing larger each night.
5. Full Moon: The entire moon is illuminated.
6. Waning Gibbous: The illuminated portion of the moon starts to decrease, getting smaller each night.
7. Last Quarter: Half of the moon is illuminated, appearing as a semicircle.
8. Waning Crescent: A sliver of the moon remains illuminated, getting smaller each night.
These eight phases are the most commonly recognized and described.