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How to Transform Between Various Astronomical Coordinate Systems?

-- | September 25, 2016

Question: How do I transform geocentric, ecliptic coordinates to heliocentric, ecliptic coordinates?  — Larry

Answer: The equations that convert between various coordinate systems used in astronomy are rather complex.  I could not find an online calculator for these conversions, but if you are familiar with the scripting language Python I can recommend the coordinates package in Astropy.

Jeff Mangum