PyEphem provides scientific-grade astronomical computations for the Python programming language.

PyEphem project provides scientific-grade astronomical computations for the Python programming language.

Given an arbitrary date and location on Earth, it can compute the positions of the sun, moon, and planets as well as any asteroids, comets, or earth satellites whose orbital elements the user can provide.

There are additional functions for computing the angular separation between two objects in the sky, determining the constellation in which an object lies, and finding the times at which an object rises, transits, and sets on a particular day.