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Skyfield¶ Elegant Astronomy for Python Skyfield computes positions for the stars, planets, and satellites in orbit around the Earth. Its results should agree with the positions generated by the United States Naval Observatory and their Astronomical Almanac to within 0.0005 arcseconds (half a “mas” or milliarcsecond). Written in pure Python and installs without any compilation. Supports Python 2.6,

I give some advice each year in my annual Sphinx tutorial at PyCon. A grateful student asked where I myself had learned the tip. I have done some archæology and finally have an answer. Let me share what I teach them about “semantic linefeeds,” then I will reveal its source — which turns out to have been written when I was only a few months old! In the tutorial, I ask students whether or not the Sp

>>> import ephem >>> mars = ephem.Mars() >>> mars.compute('2007/10/02 00:50:22') >>> print mars.ra, mars.dec 6:05:56.34 23:23:40.0 >>> ephem.constellation(mars) ('Gem', 'Gemini') Since its first release in 1998, PyEphem has given Python programmers the ability to compute planet, comet, asteroid, and Earth satellite positions. It wraps the “libastro” C library that powers the XEphem astronomy appli