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    Re: Retrograde motion of the planets
    From: Sean C
    Date: 2017 Mar 2, 23:08 -0800

    Steve,

    I could be wrong here, but it seems to me that it can be done this way: If one subtracts the GHA of the body from the GHA of Aries, the RA of the body is obtained. If, when subtracting the RA of a particular hour from the RA of the following hour, a negative value is obtained, then the planet is in retrograde motion.

    Cheers,

    Sean C.

       
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