python3-skyfield binary package in Ubuntu Mantic amd64

 Skyfield is a pure-Python astronomy package that is compatible with
 both Python 3 and makes it easy to generate high precision
 research-grade positions for planets and Earth satellites.
 .
 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 (which equals half a
 “mas” or milliarcsecond).

Source package