Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
The lunar cycle refers to the recurring pattern of phases that the moon goes through over approximately 29.5 days. It includes phases such as new moon, first quarter, full moon, and last quarter.
Related terms
Solar Calendar: A solar calendar is a calendar based on the Earth's position relative to the sun. It is commonly used in many cultures around the world.
Lunar New Year: The Lunar New Year, also known as Chinese New Year, is a festival that celebrates the beginning of a new lunar year.
Waxing and Waning: Waxing refers to the moon's illumination increasing from new moon to full moon, while waning refers to its illumination decreasing from full moon to new moon.