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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Mayur Anil Badhe posted an Question
October 17, 2020 • 16:55 pm
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30 points
30 points
- IIT JAM
- Geology (GG)
Sir, why eclipse doesn't happens every month?????
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Sajan sarthak
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Because the orbital inclination of the Moon is tilted relative to the Earth/Sun line. Most times as it passes in between the Earth and sun.. it is slightly above or below relative to the sun. TWO things have to happen for there to be an eclipse. 1) The moon has to pass between the Earth and the sun which happens once every orbit. 2) The Moon has to be at a point in it’s orbit where it’s own orbital plane is crossing Earth’s orbital plane (the ecliptic). Inbrief sun 🌞 moon 🌕 and Earth are not in a single axis they are tilted so we don't get eclipse every month. follow image below
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Sir, how many times eclipse happens in a single year????
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Solar eclipses are fairly numerous, about 2 to 4 per year
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Rahul kumar
A lunar eclipse happens when the Earth, sun and moon align in space, with Earth between the sun and moon. Moon’s orbit is inclined to Earth’s orbit by about five degrees. Twice a month the moon intersects the ecliptic Earth’s orbital plane, at points called nodes. If the moon is going from south to north in its orbit, it’s called an ascending node. If the moon is going from north to south, it’s a descending node. If the full moon or new moon sweeps appreciably close to one of these nodes, then an eclipse is not only possible.