I wondered how time would be dilated for an object in the middle of 2 black holes, however
https://en.wikipedia.org/wiki/Gravitational_time_dilation only provides a formula for one source of gravity
i tried approximating it by multiplying the time dilation factors, however when i used 1 single source with twice the mass the results differed from 2 objects with half the mass quite drastically
the examples:
mass kg distance m
time:
mass kg distance m
time:
approximation:
which is off by a factor of 5 and would be even more off the closer the distance gets to the schwarzschild radius
so how can the time dilation of multiple objects be approximated ?
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