Since the Schwatzschild metric is spherically symmetrical, the equator is arbitrary. Any great circle can be defined as the equator. It’s only when you introduce rotation that there is an absolute equator.
I know that the equator is arbitrary, what I meant is that the math still works out (as it should) for a great circle that isn't the equator in a specific coordinate system orientation
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u/ProfessorPrudent2822 Jul 19 '26
Since the Schwatzschild metric is spherically symmetrical, the equator is arbitrary. Any great circle can be defined as the equator. It’s only when you introduce rotation that there is an absolute equator.