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Christopher Columbus & the Lunar Eclipse   Add to wiki
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Tags: lunar eclipses, moon, night, sky, stars, orbit, planet, celestial

The recent lunar eclipse has left me wondering just what IS an eclipse. Here are some facts about the celestial event.

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  • Occurs whenever the Moon passes through some portion of the Earth's shadow, only when the Sun, Earth, and Moon are aligned exactly with the Earth in the middle.
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  • Moon is always full during a lunar eclipse.
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  • The shadow of the Earth is divided into two parts: the umbra and penumbra.
    Within the umbra, there is no direct solar radiation.
    As a result of the Sun's large angular size, solar illumination is only partially blocked in the outer portion of the Earth's shadow, called penumbra.
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  • A partial lunar eclipse occurs when only a portion of the Moon enters the umbra.
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  • A selenelion or selenehelion is a type of lunar eclipse when, due to the moon's proximity to the ecliptic, both the sun and the eclipsed moon can be observed at the same time, called a horizontal eclipse.
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  • The red colouring arises because sunlight reaching the Moon must pass through a long and dense layer of the Earth's atmosphere.
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  • Christopher Columbus, in an effort to induce the natives to continue provisioning him and his men, successfully intimidated them by correctly predicting a lunar eclipse on February 29, 1504, using the Ephemeris of the German astronomer Regiomontanus.
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  • Every year there are at least two lunar eclipses.
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  • May be viewed from anywhere on the night side of the Earth.

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    Source: Wikipedia

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    Comments:

    Oh, Christopher Columbus, there's so much more to you than rape and slavery.
    Comment by: buccicone.2


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