lunar noon

[′lü·nər ′nün]

(astronomy)

The instant at which the sun is over the upper branch of any meridian of the moon.

Mentioned in ?

Moon

References in periodicals archive ?

They tend to be firmly bound to the regolith until the surface temperatures spike near lunar noon. These molecules then 'thermally desorb' from the lunar soil to reach a nearby cold location where they can stick or populate Moon's "extremely tenuous atmosphere or exosphere, until temperatures drop and the molecules return to the surface."

NASA's Orbiter observes water molecules moving around the Moon

A crater may appear to be a deep, dark well at sunrise, turn increasingly saucer-shaped as the Sun climbs high in the lunar sky, become a flat-looking white spot or ring near lunar noon, then reverse the process as the Sun declines, with shadows now reaching in the opposite direction.