Eclipse Is A Special Astronomical Phenomena

Eclipse Is A Special Astronomical Phenomena

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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 place 3 times, sometimes one does not occur. Because in normal circumstances, the moon is not from the top of the earth through the umbra, is at the bottom left, with little or in part through the Earth's umbra passes through, so under normal circumstances would not have happened eclipse. According to the observation statistics, in every century penumbral eclipse, partial eclipse, total lunar eclipse occurred in the percentage of approximately 36.60%, 34.46% and 28.94%.

Moon leaves penumbra months after the beginning of total eclipse: the moon and the penumbra just touch, then the naked eye can not perceive eclipse. The formal beginning of the eclipse process is divided into loss, food only, eclipse, raw light, umbra five stages.
1 Moon leaves penumbra beginning: the moon and the penumbra just touch, then the lunar surface brightness a bit, but more difficult to detect visually.
(2) early loss (only partial lunar eclipse and total lunar eclipse): mark eclipse began. Slowly from the east edge of the moon into the shadow, the moon and the first outside Earth's umbra cut.
3. Food only (only total lunar eclipse): the moon enters the Earth's umbra, and inscribed with the umbra first. Full Moon entered the Earth's umbra just inside.
4. Eclipse: moon surface center closest to the Earth's umbra center of the moment, this time around the copper surface of the moon was red or dark red. (Reason: a large sun refracted through the Earth's atmosphere, so that the light deflection to the inside, but each is not the same degree of deflection of light (dispersion), red light deflection is greatest, closest to the Earth's shadow, reflected on the moon ; In addition, due to atmospheric dust and cloud content and different positions have different degree of deflection of light, so the total eclipse when the moon is dark red, copper, or orange. By the same token, due to atmospheric refraction and Chaoyang and the sunset is not white, but according to the height because of different levels of atmospheric refraction, showing orange or red.)
5 Health-ray (only total lunar eclipse): Moon in the umbra of the Earth move, and within the Earth's umbra second cut. Eastern edge of the moon and the Earth within the umbra eastern edge of the cutting phase, when the total eclipse phase ends.
6. Umbra (total eclipse and partial eclipse only): the moon gradually leave the Earth umbra, and the second outside the Earth's umbra cut. Moon's umbra west edge of the eastern edge of the Earth relative to exonuclease, then eclipse the entire process over. Moon was the extent of food called "eclipse", when it is equal to eclipse umbra on the Earth round the edge of the most long-distance and depth, as by the ratio of the moon.
7. Penumbral eclipse ends: Moon left the penumbra, the eclipse process formally completed. Partial lunar eclipse is not only food, raw light process, even food that only the shadow of the Earth closest to the moment.
Eclipse with the eclipse of the size of the represented. Is equal to eclipse eclipse, the moon, as the diameter of the eclipse when the moon entered the umbra part of the apparent diameter ratio. Exactly when the eclipse as the Moon and umbra within the cut, food points equal to 1. Eclipse when the moon is more in-depth as the umbra, eclipse with greater than 1 indicate. Total eclipse of the eclipse is greater than or equal to 1. Partial eclipse points are less than 1. Penumbral eclipse of the eclipse with the diameter of the moon and the moon into the penumbra portion expressed as the ratio of the diameter. Penumbral eclipse the eclipse is greater than 0.7, the human eye can perceive.

Can be divided into seven stages: 1, the moon had just called the penumbra and penumbra eat before contact, this invisible to the naked eye during the eclipse Hou; 2, when the moon is called with the early loss of contact with umbra, then the partial eclipse began ; 3, when the umbra of the moon, and when cut, called the food only, then enter the umbra full moon, total eclipse began; 4, the moon and the shadow center center nearest eclipse when called; 5, the second and the moon within the umbra is called when the students cut the light, when the total eclipse ends; 6, the moon and the second cut when the outer called umbra umbra, a partial eclipse ends 7, when the moon left the penumbra, is called a penumbral eclipse ends. In both the partial eclipse without food and raw light, only the Moon leaves penumbra penumbral lunar eclipse began, and the penumbral eclipse eclipse ends. In the penumbra of the moon, the lunar surface brightness decreases very little. Only when the moon is close to the umbra penumbra in depth, the eye can see the edge of the moon darkens. When not in the umbra of the moon is completely invisible, even when the total eclipse eclipse, can see the moon's surface reddish copper. This is because the Earth's lower atmosphere by sunlight refracted into the umbra is subject, projected onto the lunar surface's sake.

Eclipse theory. Lunar 15, 16, run to the moon and eclipses the sun relative to the side. Then if the center of the Earth and the Moon approximately in the same line, the moon will enter Earth's umbra, and the resulting total eclipse. If only part of the moon into Earth's umbra, the resulting partial lunar eclipse. When the moon enters the Earth's penumbra, the penumbra should be eating, but because of its brightness decreased very little, difficult to detect, it is not known as the lunar eclipse, the eclipse is only total eclipse and partial lunar eclipse two. Eclipse happened in sight (full moon), but not every eclipse all hope, this is not all there and every new moon solar eclipse is the same reason. Under normal circumstances, the moon is not passed from the top of the Earth umbra is at the bottom left, rarely through the Earth's umbra or partly by, therefore, under normal circumstances would not have happened eclipse. Lunar eclipse occurs up to three times a year, sometimes one does not occur. Earth in the direction back to the sun will be a shadow, called the shadow. The shadow umbra and penumbra are divided into two parts. 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 generates 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. Depending on the path of the moon through the umbra and the Earth's atmosphere at that time, the brightness at 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.

Lunar 15, 16, run to the moon and sun relative to the direction. Then if the center of the Earth and the Moon approximately in the same line, the moon will enter Earth's umbra, and the resulting total eclipse. If only part of the moon into Earth's umbra, the resulting partial lunar eclipse. When the moon enters the Earth's penumbra, the penumbra should be eating, but because of its brightness decreased very little, difficult to detect, it is not known as the lunar eclipse, the eclipse is only total eclipse and partial lunar eclipse two. Eclipse happened in sight (full moon), but not every eclipse all hope, this is not all there and every new moon solar eclipse is the same reason. Moon is in shadow to cover all or part of the phenomenon. Generally occurs in Wangri eclipse, lunar calendar month that is fifteen or 16, when the Earth to the sun and moon movement between, but not every Wangri lunar eclipse can occur, because between the ecliptic and White Road there are angle, only Moonlight in sight, the moon and went straight eclipse photos can be seen to affect the Earth ecliptic and White Road intersection near the observer on Earth to watch the eclipse. During a lunar eclipse every year the number is 2 times. The sun's diameter is much larger than the diameter of the Earth, the Earth's shadow can be divided into umbra and penumbra. Earth's diameter is about four times the moon in the lunar orbit at the Earth's umbra of the moon's diameter is still equivalent to 2.5 times. When the moon is always only cover part of the Earth umbra occurs when the partial eclipse. And when the moon enters the Earth's umbra, when all you can see the total eclipse. If the moon entered the penumbra region, the sun's light can also be cover off some of the astronomical phenomenon known as the penumbral eclipse, but because of the sun in the penumbra is still very strong, in most cases a penumbral eclipse is not easy distinguish with the naked eye, but in fact a penumbral eclipse is often the case, according to observational statistics, every century penumbral eclipse, partial eclipse, total lunar eclipse occurred in the percentage of approximately 36.60%, 34.46% and 28.94%.

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