This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
====================================
Welcome to the Skyfield Repository
====================================
Skyfield is a pure-Python astronomy package
that is compatible with both Python 2 and 3
and makes it easy to generate high precision research-grade
positions for planets and Earth satellites.
::
from skyfield.api import load
planets = load('de421.bsp')
earth, mars = planets['earth'], planets['mars']
ts = load.timescale()
t = ts.now()
position = earth.at(t).observe(mars)
ra, dec, distance = position.radec()
print(ra)
print(dec)
print(distance)
The result:
::
10h 47m 56.24s
+09deg 03' 23.1"
2.33251 au
Skyfield’s only binary dependency is NumPy.
Once that is available, Skyfield can usually be installed with::
pip install skyfield
Here are the essential project links:
* `Home page and documentation
<http://rhodesmill.org/skyfield>`_.
* `Installing Skyfield
<http://rhodesmill.org/skyfield/installation.html>`_.
* `Contributing to Skyfield
<https://github.com/skyfielders/python-skyfield/blob/master/Contrib.rst>`_.
* `Skyfield package <https://pypi.python.org/pypi/skyfield>`_
on the Python Package Index.
* `Issue tracker
<https://github.com/brandon-rhodes/python-skyfield/issues>`_
on GitHub.
e176b25d9a