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Message Subject The "moon" is a Projection in the Sky
Poster Handle Harmonix
Post Content
Even though the Sun is 391 times as far away from the Earth as the Moon, its force on the Earth is about 175 times as large.
 Quoting: apostle dave 10920814


OP I ain't hating on you or anything, but this is the next part from your source...

"Yet its tidal effect is smaller than that of the Moon because tides are caused by the difference in gravity field across the Earth. The Earth's diameter is such a small fraction of the Sun-Earth distance that the gravity field changes by only a factor of 1.00017 across the Earth. The actual force differential across the Earth is 0.00017 x 174.5 = 0.03 times the Moon's force, compared to 0.068 difference across the Earth for the Moon's force. The actual tidal influence then is then 44% of that of the Moon."

[link to hyperphysics.phy-astr.gsu.edu]
 
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