Eclipse is a special astronomical phenomena

by Joachim Niemeier
Eclipse is a special astronomical phenomena
Article by Sandals2uk

Eclipse is a special astronomical phenomena - Society












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Earth in the direction back to the sun will be a shadow, called the shadow. The shadow is divided into two parts, the umbra and penumbra eclipse. Umbra is not subject to too much direct sunlight, but only by part of the penumbra of the direct sun light. The moon around the earth in the process sometimes into the shadow, which produced a lunar eclipse. When the moon entered the umbra at all, total lunar eclipse occurs; but if only part time to enter the umbra, the partial eclipse will occur. Total eclipse of the umbra and the eclipse is partial eclipse.In the total eclipse, the moon is not completely invisible, which is due to sunlight through the Earth's thin atmosphere are refracted into the umbra, projected onto the lunar surface, so to appear before the red on copper. Through the umbra of the moon appears to the path and then the Earth's atmosphere, the luminosity in different total eclipse will be different.Sometimes the moon will not enter into the umbra and penumbra only, which is called a penumbral eclipse. During the penumbral eclipse occurs, the moon will be slightly dimmer, but the limb will not be obscured by the Earth's shadow.In ancient times, people do not know how to eclipse occurs scientific truth, the same as fear eclipses, the eclipse can also live in fear. Some foreign legend, early 16th century, Columbus sailing to South America, Jamaica, and the local indigenous conflict. Columbus and his sailors trapped in a corner, without food and water, the situation is very critical. Understand the point of astronomical knowledge of the Columbus know that this night total lunar eclipse to occur on the indigenous people shouted, "do not take food, the moon will not give you!" At night, Columbus would come true, really there is no moonlight. Upon seeing the indigenous people fear, war and peace quickly and Columbus. Lunar eclipse can be divided into partial eclipse, total eclipse and the penumbral eclipse of three. When the moon eclipses the Ministry only minutes into the Earth's umbra, the partial eclipse occurs; when the diameter of the Earth's umbra is still equivalent to 2.5 times the moon. So when the center of the Earth and the Moon approximately in the same line, the moon will be completely into Earth's umbra, and the resulting total eclipse. And if the moon is always only partially cover the Earth umbra, that is only part of the Earth's umbra, the partial eclipse occurs. On the moon does not appear on the annular eclipse. Because the moon's small size of the Earth than the Earth's umbra area, so it will not appear on a monthly loss of this phenomenon. During a lunar eclipse every year the number is usually 2 times, up to

Total Solar Eclipse | Solar Eclipse Information