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skyfield

Elegant astronomy for Python

https://github.com/skyfielders/python-skyfield

Science Score: 36.0%

This score indicates how likely this project is to be science-related based on various indicators:

  • ○
    CITATION.cff file
  • ✓
    codemeta.json file
    Found codemeta.json file
  • ✓
    .zenodo.json file
    Found .zenodo.json file
  • ○
    DOI references
  • ○
    Academic publication links
  • ✓
    Committers with academic emails
    1 of 50 committers (2.0%) from academic institutions
  • ○
    Institutional organization owner
  • ○
    JOSS paper metadata
  • ○
    Scientific vocabulary similarity
    Low similarity (6.4%) to scientific vocabulary

Keywords from Contributors

astronomy closember region gtk qt tk wx agents argument-parser interactive
Last synced: 10 months ago · JSON representation

Repository

Elegant astronomy for Python

Basic Info
  • Host: GitHub
  • Owner: skyfielders
  • License: mit
  • Language: Python
  • Default Branch: master
  • Size: 83.7 MB
Statistics
  • Stars: 1,590
  • Watchers: 55
  • Forks: 233
  • Open Issues: 95
  • Releases: 0
Created over 13 years ago · Last pushed about 1 year ago
Metadata Files
Readme Changelog Funding License Citation

README.rst 

====================================
 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.

.. code-block:: python

   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

Skyfields 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
  `_.

* `Installing Skyfield
  `_.

* `Contributing to Skyfield
  `_.

* `Skyfield package `_
  on the Python Package Index.

* `Issue tracker
  `_
  on GitHub.

Owner

  • Name: skyfielders
  • Login: skyfielders
  • Kind: organization

GitHub Events

Total
  • Issues event: 90
  • Watch event: 161
  • Issue comment event: 198
  • Push event: 77
  • Pull request review comment event: 2
  • Pull request review event: 2
  • Pull request event: 6
  • Fork event: 20
  • Create event: 5
Last Year
  • Issues event: 90
  • Watch event: 161
  • Issue comment event: 198
  • Push event: 77
  • Pull request review comment event: 2
  • Pull request review event: 2
  • Pull request event: 6
  • Fork event: 20
  • Create event: 5

Committers

Last synced: about 1 year ago

All Time
  • Total Commits: 2,385
  • Total Committers: 50
  • Avg Commits per committer: 47.7
  • Development Distribution Score (DDS): 0.047
Past Year
  • Commits: 86
  • Committers: 2
  • Avg Commits per committer: 43.0
  • Development Distribution Score (DDS): 0.012
Top Committers
Name Email Commits
Brandon Rhodes b****n@r****g 2,274
Josh Paterson J****n 26
Alex Tucker t****l@g****m 9
aarose a****e 6
Richard Shaw j****w@g****m 5
dependabot[bot] 4****] 4
Anton I. Sipos a****s@g****m 3
Jérôme Deuchnord D****d 3
azharkhan a****l@g****m 3
hoylemd h****d@g****m 3
ozialien o****n@g****m 3
aarose a****a@v****m 3
Liav Koren l****v@v****m 2
Wai Chung Hon w****i@w****m 2
Torsten Rehn t****n@r****l 2
David Palmer d****r@g****m 2
Christoph Deil D****h@g****m 2
Brady Burnsides b****y@b****s 1
cclauss c****s@b****h 1
Tommy t****m@a****t 1
Éric Araujo m****k@n****g 1
Engineero E****o 1
Cody c****y@q****m 1
Christian Moomaw e****5 1
Chris Lewicki c****s@l****m 1
joernu76 j****n@f****e 1
gavinhofer 1****r 1
dieli a****r@g****m 1
beaglebao 4****o 1
Zlatan Vasović z****c@g****m 1
and 20 more...
Committer Domains (Top 20 + Academic)
vmfarms.com: 2 rhodesmill.org: 1 waveaccounting.com: 1 rehn.email: 1 burnsides.us: 1 bluewin.ch: 1 antivapor.net: 1 netwok.org: 1 quantifiedcode.com: 1 lewicki.com: 1 fz-juelich.de: 1 heirman.net: 1 rafik.ca: 1 newton.cx: 1 wedesoft.de: 1 fluid4.net: 1 tiscali.it: 1

Issues and Pull Requests

Last synced: 10 months ago

All Time
  • Total issues: 235
  • Total pull requests: 31
  • Average time to close issues: 4 months
  • Average time to close pull requests: 6 months
  • Total issue authors: 173
  • Total pull request authors: 22
  • Average comments per issue: 4.58
  • Average comments per pull request: 4.97
  • Merged pull requests: 6
  • Bot issues: 0
  • Bot pull requests: 1
Past Year
  • Issues: 50
  • Pull requests: 5
  • Average time to close issues: 22 days
  • Average time to close pull requests: 5 months
  • Issue authors: 36
  • Pull request authors: 3
  • Average comments per issue: 1.88
  • Average comments per pull request: 2.4
  • Merged pull requests: 0
  • Bot issues: 0
  • Bot pull requests: 0
View more stats
Top Authors
Issue Authors
  • aendie (11)
  • sgbmzm (8)
  • reza-ghazi (7)
  • Bernmeister (7)
  • jimbabwean (5)
  • jurezakrajsek (3)
  • scottshambaugh (3)
  • Akut-Luna (3)
  • izzatzubir (3)
  • psbaltar (2)
  • trufanov-nok (2)
  • roe-dl (2)
  • hasanelfalakiy (2)
  • Borlaff (2)
  • JoshPaterson (2)
Pull Request Authors
  • Tontyna (6)
  • JoshPaterson (3)
  • ruitcatarino (2)
  • AlexKurek (2)
  • jamescoledesign (2)
  • jamesgrimmett (2)
  • gavinhofer (2)
  • EndlessDex (2)
  • wedesoft (2)
  • andibarg (2)
  • mindaugl (1)
  • glangford (1)
  • mattiaverga (1)
  • facorazza (1)
  • dependabot[bot] (1)
Top Labels
Issue Labels
feature request (29) more information needed (15) documentation request (9) platform bug (5) contributor-ready (1) question (1)
Pull Request Labels
work in progress (2) dependencies (1)

Packages

  • Total packages: 1
  • Total downloads: unknown
  • Total dependent packages: 6
  • Total dependent repositories: 8
  • Total versions: 45
conda-forge.org: skyfield

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 milliarcsecond). Written in pure Python and installs without any compilation. Supports Python 2.6-2.7 and Python 3.3-3.6. Has NumPy as its only binary dependency, the fundamental package for scientific computing with Python, whose vector operations make Skyfield efficient.

  • Versions: 45
  • Dependent Packages: 6
  • Dependent Repositories: 8
Rankings
Dependent packages count: 9.0%
Average: 11.8%
Dependent repos count: 12.1%
Stargazers count: 12.7%
Forks count: 13.3%
Last synced: 11 months ago

Dependencies

.github/workflows/ci.yml actions
  • actions/checkout v2 composite
  • actions/setup-python v2 composite
containers/32-bit/Dockerfile docker
  • 32bit/ubuntu 16.04 build
containers/python-2.6/Dockerfile docker
  • mrupgrade/deadsnakes 2.6 build
requirements.txt pypi
  • astropy ==3.2.2
  • beautifulsoup4 ==4.6.0
  • html5lib ==1.0.1
  • lxml ==4.9.1
  • matplotlib ==3.3.0
  • mock ==2.0.0
  • numpy ==1.15.4
  • pandas ==1.0.0
  • pyflakes ==2.1.1
  • python-dateutil >=2.5.0
  • pytz *
  • sphinx ==1.7.2
  • spktype21 *
setup.py pypi
  • certifi >=2017.4.17
  • jplephem >=2.13
  • numpy *
  • sgp4 >=2.2