Karen:
Thank you for the summary. In the past the pyephem needed to be loaded
separately, but I see more recent Rasp OS seem to install it
automatically now (just from having discovered it with some of the
function listings) so I don't have to go looking for nor installing it.
To me that is new but a welcome change, which I admittedly didn't know
the new Pythons did.
The other part I'm trying to understand is one of the comments was that
skyfield was a direct or even 'drop in' replacement for pyephem. To me
that implies that the name of the module and the calls and recognized
functions are named the same or otherwise WeeWx would have to test to
see which one was installed and then issue the correctly named function
calls.
In any event, it works! Decades ago we had a program called Guide 8
which pointed the telescope and tracked for our University's
telescopes. Very accurate and other than implementing it (on old IBM
PCs!) I didn't have much more to do with it. The astronomers took care
of updating the ephemeris and it was amazing what it could do.
I just want to know about what time the moon comes up, etc. so even a
slightly outdated pyephem will do nicely, not that I won't be playing
with the skymap and skyfield stuff since it seems so nice.
Enough for this discussion and I thank all who gave their input. I
understand better now. Dale
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