Akkana Peck <yahoo@...> writes:
Geeky astronomical coordinate question ... this is a difference
between astrographic coordinates (used by xephem) and apparent
coordinates (RASC and other tables). But none of my references are
very clear what the difference is and why they differ so much.
When I packaged the XEphem computation routines so that they could be
used by Python programmers, I went ahead and attempted to write up an
explanation of how these coordinates differ. My explanation might not
be very clear - and might even be wrong if there are points of the
science that I misunderstood - but here it is, in case it helps you:
--
Brandon Craig Rhodes brandon@...