Re: [help-gnuastro] Sun Az/El

[Mohammad Akhlaghi]

Hi Christopher,

Gnuastro is still a very young package which is still growing and with 
many tools remaining to be included. So unfortunately it doesn't yet 
have an ephemeris (positions of objects on the sky) calculation tool.

Thanks to this question, I added a task (link below) in the Gnuastro 
project webpage, so it won't be forgotten and it will be included some 
time in the future by anyone who is interested.

https://savannah.gnu.org/task/?14628

If you are familiar/comfortable with Python, the astropy library 
provides a package for this job, and it is free software:

http://docs.astropy.org/en/stable/coordinates/solarsystem.html

I believe it can be used offline as you wanted, you just need to 
download its database (115MB) once. You can write a small Python script 
to calculate it using these astropy modules.

I hope this helps :-),

Cheers,
Mohammad