A moon cycle, or a lunation, is the time the moon travels through its lunar phases. ©timeanddate. com your january 2026 moon guide skywatching tips for january 2026’s must-see celestial events your … Moon phase for today and tonight with current lunar phase, illumination percentage and moons age.

In geophysical terms, the moon is a planetary-mass object or satellite planet. Its mass is 1. 2% that of the earth, and its diameter is 3,474 km (2,159 mi), roughly one-quarter of earth's (about as wide as the …