Answer:
The visibility of the Moon to an observer depends on its phase in its monthly cycle. The Moon goes through several phases, including New Moon, First Quarter, Full Moon, and Last Quarter.
- During a New Moon, the Moon is not visible because it's between the Earth and the Sun.
- During the First Quarter, half of the Moon is visible as a right half.
- During a Full Moon, the entire Moon is visible.
- During the Last Quarter, half of the Moon is visible as a left half.
The visibility of the Moon also depends on its position in the sky, local weather conditions, and light pollution. It's most easily seen in a clear, dark sky away from artificial lights.