How Bright is the Moon?

By: Mike Luciuk

How bright is the Moon? That depends on a number of factors. The phase of the Moon is the primary one. Other obvious factors are the Earth-Moon and Sun-Moon distance as well as atmospheric transparency and extinction. Albedo and its variation is the final major factor affecting lunar brightness.

Visual albedo is defined by the “reflectivity of the surface of a planet, moon, asteroid, or other celestial body that does not shine by its own light. Albedo … Read the rest “How Bright is the Moon?”