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Mathematics 14 Online
OpenStudy (anonymous):

any astronomy buffs? trying to understand how to use the celestial coordinate system...

OpenStudy (anonymous):

In particular, how do I determine RA coordinates? Where does the 0hr start?

OpenStudy (anonymous):

a lot of sources describe RA as starting at the vernal equinox, but if I were to walk outside right now I wouldn't know where that point is in the sky.

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