Why is there a total solar eclipse?
time：
2022-05-26 15:42
source：
The earth is the only planet except Pluto that can see a total solar eclipse.It is a coincidence that we can see the total solar eclipse:the moon,which is 400 times smaller than the sun,is about 400 times closer to us than the sun,so the sun and the moon look the same size in the sky,which creates the possibility of the total solar eclipse.In the solar system,except Pluto,no other planet can see a total solar eclipse,because the satellites of these planets are either too small or too far away from the planets to completely block the sun.Therefore,we see that the spectacular natural scene of total solar eclipse is created by nature.Eclipses can be accurately predicted.We know the orbit of the earth and the moon,as well as the movement of the sun.We predict the solar eclipse to be accurate to minutes.Solar eclipses have periodicity.For example,following the Saro cycle of 6585 and 32 days,there are 71 eclipses,which start again and again,but the location is different.There are 0 and 32 days left in each Saro cycle.At this time,the earth rotates 117 degrees,which can be used to correct,but it is not very accurate.Because of the different locations,although the eclipse has a cycle,many people do not know it,so we must investigate the eclipse globally,rather than looking at the eclipse records of a location.
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