[gnuastro-devel] [task #14628] Program/library for ephemeris calculation

[Mohammad Akhlaghi]

URL:
  <http://savannah.gnu.org/task/?14628>

                 Summary: Program/library for ephemeris calculation
                 Project: GNU Astronomy Utilities
            Submitted by: makhlaghi
            Submitted on: Wed 13 Sep 2017 10:36:27 PM CEST
         Should Start On: Wed 13 Sep 2017 12:00:00 AM CEST
   Should be Finished on: Wed 13 Sep 2017 12:00:00 AM CEST
                Category: New program
                Priority: 5 - Normal
              Item Group: Enhancement
                  Status: Postponed
                 Privacy: Public
        Percent Complete: 0%
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
                  Effort: 0.00

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Details:

One useful tool for observations is a tool for ephemeris
<https://en.wikipedia.org/wiki/Ephemeris> calculations, for example the
positions of the Sun, Moon, planets and etc.

So it would be good if such a tool can be included in Gnuastro. For example a
command like the following could give the position of the Sun and the Moon at
the current date and position on earth:


$ astephemeris --body=sun --body=moon


This issue was brought up by Christopher Howard
<http://lists.gnu.org/archive/html/help-gnuastro/2017-09/msg00000.html>.

As a starting point, we might be able to learn a lot from astropy's
implementation
<http://docs.astropy.org/en/stable/coordinates/solarsystem.html>.




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