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An lunar eclipse occurs when the moon passes directly behind earth and into its shadow.
A lunar eclipse is an astronomical phenomenon. It happens when the moon passes through the shadow of the Earth which can only occur during a full moon. ... The reddish-brown color is because some of the Sun's light bends through the Earth's atmosphere and shines on the Moon.
An eclipse in which the moon appears darkened as it passes into the earth's shadow.
A lunar eclipse occurs when the Moon passes directly behind Earth and into its shadow.[1] This can occur only when the Sun, Earth, and Moon are exactly or very closely aligned (in syzygy), with Earth between the other two. A lunar eclipse can occur only on the night of a full moon. The type and length of a lunar eclipse depend on the Moon's proximity to either node of its orbit.During a total lunar eclipse, Earth completely blocks direct sunlight from reaching the Moon. The only light reflected from the lunar surface has been refracted by Earth's atmosphere. This light appears reddish for the same reason that a sunset or sunrise does: the Rayleigh scattering of bluer light. Due to this reddish color, a totally eclipsed Moon is sometimes called a blood moon.