Moonlight is the light that comes to Earth from the Moon.  This light does not originate from the Moon, but actually originates from sunlight.  The Moon does not, however, reflect sunlight like a mirror, but it reflects light from those portions of its surface which the Sun's light strikes.  See diffuse reflection.

In many legends moonlight is an important part of magical processes (for example, werewolves are said to transform at full moon).

The intensity of moonlight varies greatly depending on the lunar cycle but even the full moon typically provides only about 0.2 lux illumination, so the full moon is about 500,000 times fainter than the sun.  When the moon is viewed at high altitude at tropical latitudes, the illuminance can reach 1 lux.  The color of moonlight, particularly near full moon, appears bluish to the human eye compared to most artificial light sources.  The Moon's albedo is 0.136, meaning only 13.6% of sunlight incident on the Moon is reflected.

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