What is lunar perigee?

Lunar perigee refers to the point in the Moon's elliptical orbit where it is closest to the Earth. This proximity has various effects, including the appearance of a supermoon, when the full moon coincides with perigee, making it appear larger and brighter in the sky. Understanding lunar perigee is essential in disciplines such as astronomy and navigation, where precise knowledge of celestial movements is critical.

The other options do not accurately define perigee. The point farthest from Earth represents lunar apogee, the midpoint of the elliptical orbit does not specifically denote any significant point like perigee or apogee, and the time interval between full moons relates to the lunar cycle rather than the orbital characteristics of the Moon around the Earth.