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发帖数: 1994 | 1 Moon Shadow Moves Over Africa
Credit and Copyright: EUMETSAT
Explanation: When the Moon's shadow reached out and touched the Earth last week, the
result was a solar eclipse. Such an eclipse is total only for observers located along a narrow
path corresponding to the ground track of the shadow's dark central portion or umbra. For
this eclipse, racing along at nearly 2000 kilometers per hour, the Moon's umbra obligingly
crossed over land along regions of Africa and Australia. To |
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