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Solar Eclipse
A total solar eclipse is a natural phenomenon,however it is regarded as a bad omen by many superstitious people. A total solar eclipse which causes darkness during the day time,can be terrifying to people who are ignorant about its astronomical phenomenon.Many people observe fast during the eclipse time and take divine bath after it is over.
It is scientifically believed that the obstructed sunrays,which do not reach
the earth,cause pollution during the eclipse time.Hence many people neither
consume any food nor begin a new venture.It is strongly and widely believed
that direct staring the Sun during eclipse period leads to blindness.Hence
people watch the eclipse by using black films. There are four types of eclipses as follows,- * Partial eclipse - This occurs when the Sun and the Moon are not exactly in
a line and the moon * Hybrid eclipse - These eclipses are not very common.The Moon seems to cover
the full Sun from * Annular eclipse - It occurs when the Sun and Moon are exactly aligned but
the size of the moon is * Total eclipse - It takes place when the Moon completely covers the Sun and
only a little brightness Geometry
The sketch below shows the positions of the Sun, Moon and Earth during a solar eclipse.The dark gray region below the Moon is the umbra, from where the Sun is entirely covered by the Moon.The point where the umbra touches the Earth's surface is the place where a total eclipse can be seen.The larger light gray area is the penumbra, in which only a partial and annular eclipses are seen. As already mentioned above,a solar eclipse can occur only during the new moon time.The distance of the Moon from the Earth goes on changing,hence,the Moon's apparent size varies with its distance from the Earth,leading to the difference between total and annular eclipses.At many times the size of the Moon appears smaller than the Sun,hence maximum times the eclipses are annular.As the Moon comes closer to the Earth,there occurs a total eclipse. The geometry of solar eclipse
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