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Angle Between Two Points on a Sphere

-- Jim | November 12, 2021

Question:

How do you calculate the angle between the North Celestial Pole and the Galactic Equator using spherical trigonometry?
I’m a layman, so is it possible to express the equation in terms I can understand?
Many thanks!
Jim

-- Jim

Answer:

I think what you want to use are two laws of cosines. I believe that the solution to the problem you describe has been described on the Mathematics Stack Exchange.

-- Jeff Mangum

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