Skip to main content

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:

Metadata

Release files for skyfield 1.20

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for skyfield 1.20
File Size Uploaded
skyfield-1.20.tar.gz 262.8 kB Details

Release files / skyfield-1.20.tar.gz

Download URL skyfield-1.20.tar.gz
Size 262.8 kB
Tags Source
SHA-256 checksum
How to use checksums
5dbc4626714c32471524e49b0496806dd87366cbe295ed1e077c6fd5be91a452
BLAKE2b-256 checksum
How to use checksums
defa2ad26ae620f90d78707027699b1003b4fd09b682c83b4c764bd52d59498a
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
No
Uploaded via Python-urllib/3.6

Release history Release notifications | RSS feed

1.55

2 release files

1.54

2 release files

1.53

2 release files

1.52

2 release files

1.51

2 release files

1.50

2 release files

1.49

2 release files

1.48

2 release files

1.47

2 release files

1.46

2 release files

1.45

2 release files

1.44

2 release files

1.43

2 release files

1.42

2 release files

1.41

1 release file

1.40

1 release file

1.39

1 release file

1.38

1 release file

1.37

1 release file

1.36

1 release file

1.35

1 release file

1.34

1 release file

1.33

1 release file

1.32

1 release file

1.31

1 release file

1.30

1 release file

1.29

1 release file

1.28

1 release file

1.27

1 release file

1.26

1 release file

1.25

1 release file

1.24

1 release file

1.23

1 release file

1.22

1 release file

1.21

1 release file

This release

1.20 This release

1 release file

1.19

1 release file

1.18

1 release file

1.17

1 release file

1.16

1 release file

1.15

1 release file

1.14

1 release file

1.13

1 release file

1.12

1 release file

1.11

1 release file

1.10

1 release file

1.9

1 release file

1.8

1 release file

1.7

1 release file

1.6

1 release file

1.5

1 release file

1.4.1

1 release file

1.4

1 release file

1.3

1 release file

1.2

1 release file

1.1

1 release file

1.0

1 release file

0.9.1

1 release file

0.9

1 release file

0.8

1 release file

0.7

1 release file

0.6.1

1 release file

0.6

1 release file

0.5

1 release file

0.4

1 release file

0.3

1 release file

0.2

1 release file

0.1

1 release file

Anthropic, PBC Visionary sponsor Bloomberg Visionary sponsor Hudson River Trading Visionary sponsor Meta Visionary sponsor NVIDIA Visionary sponsor Microsoft Sustainability sponsor Depot Continuous Integration AWS Cloud computing and Security Sponsor Datadog Monitoring Fastly CDN Google Download Analytics Sentry Error logging StatusPage Status page