Tranquillotus
Solar Eclipse on 22nd July 2009
Lotus 发表于 2009-07-21 13:55:54
Total Solar Eclipse: the great astronomical event of the century!
On Wednesday, 2009 July 22, a total eclipse of the sun is visible from within a narrow corridor that traverses half of Earth. The path of the Moon's umbral shadow begins in India and crosses through Nepal, Bangladesh, Bhutan, Myanmar and China. After leaving mainland Asia, the path crosses Japan's Ryukyu Islands and curves southeast through the Pacific Ocean where the maximum duration of totality reaches 6 min 39s. A partial eclipse is seen within the much broader path of the Moon's penumbral shadow, which includes most of eastern Asia, Indonesia, and the Pacific Ocean.
Fact and Figures: Everything you'll ever need to know about eclipses
1. A total solar eclipse happens when the moon moves between the sun and the earth so that, for a brief time, the light of the sun appears completely blocked.
2. The moon casts a cone of shadow over the earth called an umbra, where no sunlight reaches and a lighter region, the penumbra, where only some of the sunlight is blocked.
3. It is an astronomical coincidence that the moon is 400 times smaller than the sun, and the sun is 400 times farther away from the Earth than the moon, So when viewed from Earth during the eclipse, they appear to be exactly the same size.
4. During the Shanghai eclipse on July 22, the temperature in shanghai will plummet by approximately ten degrees.
5. The path of the eclipse will travel through India and cross through Nepal, Bangladesh, Bhutan, Myanmar and China, Japan's Ryukyu Islands and then curve southeaset through the Pacific Ocean where the maximum duration will reach 6 minutes and 39 seconds.
6. It is estimated that a given spot on the Earth will be on the path of an eclipse only about once every 370 years.
Records of eclipses in China date back to ancient times. Allegedly, in 2134BC, Emperor Chung K'ang had two of his court astrologers beheaded for not accurately predicting and eclipse.
Peasants in ancient China would bang drums to scare off the dragon they believed was taking a bite out of the moon.
Last year's eclipse was seen by some as an indicator of bad luck, especially as China had already suffered the devastating Sichuan earthquake, but others preferred to view it as a symbol of bad luck coming to an end.
Other Links
About Lunar Eclipse
A lunar eclipse is an eclipse which occurs whenever the moon passes behind the earth such that the earth blocks the sun's rays from striking the moon. This can only occur only when the Sun, Earth, and Moon are aligned exactly, or very closely so, with the Earth in the Middle. Hence, there is always a full moon the light of a lunar eclipse. The type and length of an eclipse depend upon the Moon's location relative to its orbital nodes.
On Wednesday, 2009 July 22, a total eclipse of the sun is visible from within a narrow corridor that traverses half of Earth. The path of the Moon's umbral shadow begins in India and crosses through Nepal, Bangladesh, Bhutan, Myanmar and China. After leaving mainland Asia, the path crosses Japan's Ryukyu Islands and curves southeast through the Pacific Ocean where the maximum duration of totality reaches 6 min 39s. A partial eclipse is seen within the much broader path of the Moon's penumbral shadow, which includes most of eastern Asia, Indonesia, and the Pacific Ocean.
Fact and Figures: Everything you'll ever need to know about eclipses
1. A total solar eclipse happens when the moon moves between the sun and the earth so that, for a brief time, the light of the sun appears completely blocked.
2. The moon casts a cone of shadow over the earth called an umbra, where no sunlight reaches and a lighter region, the penumbra, where only some of the sunlight is blocked.
3. It is an astronomical coincidence that the moon is 400 times smaller than the sun, and the sun is 400 times farther away from the Earth than the moon, So when viewed from Earth during the eclipse, they appear to be exactly the same size.
4. During the Shanghai eclipse on July 22, the temperature in shanghai will plummet by approximately ten degrees.
5. The path of the eclipse will travel through India and cross through Nepal, Bangladesh, Bhutan, Myanmar and China, Japan's Ryukyu Islands and then curve southeaset through the Pacific Ocean where the maximum duration will reach 6 minutes and 39 seconds.
6. It is estimated that a given spot on the Earth will be on the path of an eclipse only about once every 370 years.
Records of eclipses in China date back to ancient times. Allegedly, in 2134BC, Emperor Chung K'ang had two of his court astrologers beheaded for not accurately predicting and eclipse.
Peasants in ancient China would bang drums to scare off the dragon they believed was taking a bite out of the moon.
Last year's eclipse was seen by some as an indicator of bad luck, especially as China had already suffered the devastating Sichuan earthquake, but others preferred to view it as a symbol of bad luck coming to an end.
Other Links
About Lunar Eclipse
A lunar eclipse is an eclipse which occurs whenever the moon passes behind the earth such that the earth blocks the sun's rays from striking the moon. This can only occur only when the Sun, Earth, and Moon are aligned exactly, or very closely so, with the Earth in the Middle. Hence, there is always a full moon the light of a lunar eclipse. The type and length of an eclipse depend upon the Moon's location relative to its orbital nodes.
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