106. 2022年6月01日 07:45:03 : HbNnFKQu5U : QVd0bjlxakRyamM=[1]
Perihelion Shift of Mercury (repost) (クリ)
Size of Sun relative to Mercury will be main cause of this problem (however, will be incompatible with Newton's spherical shell theorem).
There are two drawings in which Mercury and gravity source (considered as a point) are drawn. In one drawing, gravity source is Sun and its mass is m. Distance from Mercury is 100. In the other drawing, there are two alternative gravity sources to the sun, Mass is m / 2 each. Distance from Mercury is 99 and 101(aligned on a straight line extending from Mercury). Magnitude of the gravity acting on Mercury is the latter > the former. It can be ignored on Neptune.
http://www.asyura2.com/0306/idletalk2/msg/1242.html#c106