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Lunar Eclipse: Difference between revisions
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A [[Lunar Eclipse]] occurs when the Moon passes directly behind the Earth into its umbra (shadow). This can occur only when the sun, Earth, and moon are aligned (in "syzygy") exactly, or very closely so, with the Earth in the middle. Hence, a lunar eclipse can occur only the night of a full moon. The type and length of an eclipse depend upon the Moon's location relative to its orbital nodes. A total lunar eclipse has the direct sunlight completely blocked by the earth's shadow. The only light seen is refracted through the earth's shadow. This light looks red for the same reason that the sunset looks red, due to rayleigh scattering of the more blue light. Because of its reddish color, a total lunar eclipse is sometimes called a blood moon.<ref>[https://en.wikipedia.org/wiki/Lunar_eclipse Lunar Eclipse]</ref> | |||
==Lunar Eclipse Tetrad== | |||
The recent [[Lunar Eclipse]] is the second tetrad of lunar eclipses that began this year. The first total eclipse in the tetrad took place in April 2014, the second in October 2014 and the third will occur in April 2015 with the last in the tetrad set in September 2015. (See Separation of Words September 2015)<ref>[http://www.energeticsynthesis.com/resource-tools/news-shift-timelines/2705-separation-of-worlds Separation of Worlds]</ref> | The recent [[Lunar Eclipse]] is the second tetrad of lunar eclipses that began this year. The first total eclipse in the tetrad took place in April 2014, the second in October 2014 and the third will occur in April 2015 with the last in the tetrad set in September 2015. (See Separation of Words September 2015)<ref>[http://www.energeticsynthesis.com/resource-tools/news-shift-timelines/2705-separation-of-worlds Separation of Worlds]</ref> | ||