Can someone give me a step by step Guide how to use JPL DE431 or DE441 as a Beginner.

I tried the Horizons website app and Webgeocalc but it didn't showed understandable Information. This websites forum and others were searched.

It would be enough when I'm able to read one example like:

Julian Day Number________Date__________Planet_________Position


This would be very helpful.

  • $\begingroup$ Let us continue this discussion in chat. $\endgroup$
    – PM 2Ring
    Commented Apr 28 at 15:40
  • 2
    $\begingroup$ Futur AE, you might want to write up the results of the discussion as a self-answer, to help folks who have similar problems in the future. $\endgroup$
    – HDE 226868
    Commented May 6 at 0:17

1 Answer 1


Have you explored Skyfield library ? I used it to find solar eclipses at a particular location from 5000 BC to 2000 AD. Here is the code for your reference. https://github.com/godbolerr/indianskyfield/blob/master/iastronomy/KuruSolarEclipseBC.py


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