Stack Overflow
Stack Overflow

Questions tagged [skyfield]

Skyfield high precision scientific astronomy library for Python and NumPy

The Skyfield project provides a modern alternative to the elderly PyEphem astronomy library for Python. Instead of requiring a custom C extension to be built or installed, Skyfield does all of its computation in pure Python and requires only the NumPy high performance numeric library in order to do its work — making Skyfield perfect for developers who can install NumPy directly, or who use scientific distributions that install NumPy automatically.

93 questions
0
votes
1 answer

Skyfield.api loader behaves differently in docker container

I wish to specify to Skyfield a download directory as documented here : http://rhodesmill.org/skyfield/files.html Here is my script: from skyfield.api import Loader load = Loader('~/data/skyfield') # Next line downloads deltat.data, deltat.preds,…
Matt-Mac-Muffin
  • 177
  • 8
0
votes
1 answer

Longitude of lunar nodes using Skyfield

I am trying to find out the longitude of ascending/descending moon nodes using Skyfield but unable to find any reference in documentation. Is it possible? Also do any of the JPL Files provide this data already?
Prabhash
  • 73
  • 9
-1
votes
1 answer

Skyfield: why are these coordinates negative?

I've an example of how to get a geocentric position of Mars (x,y,z cords) relative to the Earth, using class skyfield.positionlib.Geocentric(position_au, velocity_au_per_d=None, t=None, center=None, target=None) (without accounting for light-travel…
denken
  • 11
  • 3
1 2 3 4 5 6
7