Lunar eclipse

eclipse of the moon, instance in which the moon is obscured by the Earth's shadow

A lunar eclipse occurs whenever the Moon passes through some portion of the Earth's shadow. This can occur only when the Sun, Earth, and Moon are aligned exactly, or very closely so, with the Earth in the middle. Hence, the Moon is always full near a lunar eclipse. The type and length of an eclipse depend upon the Moon's location relative to its orbital nodes. The most recent total lunar eclipse was on 28 August 2007 where the sun, earth and moon were in total alignment. The initial stage started at 07:52 UTC, while the total eclipse began at 09:52 UTC giving it a bronze appearance, with reddish to blood red at its peak. Eastern Australia and New Zealand were in the perfect zone to view the total lunar eclipse or "blood moon".
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Noun
1. the earth interrupts light shining on the moon
(hypernym) eclipse, occultation

occur when the Earth passes directly between the Moon and the Sun.
See also occulation.

n. จันทรคราส (syn. eclipse)