https://www.posetteforever.com/viewtopic.php?f=34&t=2050&p=30947#p30947
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Visitor
Sunday, 30 April 2006, 09:52 PM


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Did you know that we are living in a very special time in the life of the Terra/Luna system?  In the past the satellite that we call the moon was closer to the Earth and has been slowly drifting away in a growing orbit.  Only at this point in time is the moon's distance from Earth just right for the sun and the moon to appear to be the same size in the sky.  Also this it the only point in time that the moon is at the right distance from the earth for it to intersect the Earth umbra cone at the point where the result will be that the Earth's shadow on the moon appears to be the same size as the moon and so the sun as well.  A few tens of thousands of year ago this relationship of sizes did not exist and soon, in a few more thousand years it will once again not exist.