Issues

• memory leak on repeated observe of an array of times

  skyfielders/python-skyfield#1135 · Filter by author kenta2 opened on May 31, 2026
  1

• [BUG] EphemerisRangeError and RuntimeWarning on Linux when using naive datetime objects

  more information needed
  skyfielders/python-skyfield#1128 · Filter by author barraRRR opened on Apr 21, 2026
  8

• feat: Consider adding py.typed file marker for type-checking support

  feature request
  skyfielders/python-skyfield#1126 · Filter by author FBruzzesi opened on Apr 7, 2026
  3

• Stack._at() out-of-range exception only mentions final segment checked, instead of all segments available

  skyfielders/python-skyfield#1125 · Filter by author TheDaniel166 opened on Mar 26, 2026
  3

  

• TypeError: '<=' not supported between instances of 'Time' and 'Time'

  feature request
  skyfielders/python-skyfield#1115 · Filter by author IcyTide opened on Jan 29, 2026
  1

• Slicing and subscript operator for skyfield.api.Star

  skyfielders/python-skyfield#1091 · Filter by author bryan-lunt opened on Jul 19, 2025
  1

• Math operators for Angle class

  skyfielders/python-skyfield#1090 · Filter by author bryan-lunt opened on Jul 18, 2025
  10

• Skyfield >= 1.50 can cause "OverflowError: Python int too large to convert to C long"

  skyfielders/python-skyfield#1086 · Filter by author aendie opened on Jun 9, 2025
  1

• from_altaz(...) does not fully populate the resultant object.

  feature request
  skyfielders/python-skyfield#1085 · Filter by author bryan-lunt opened on Jun 9, 2025
  3

• %f doesn't work in xxx_strftime() functions

  skyfielders/python-skyfield#1081 · Filter by author kvsankar opened on May 14, 2025
  3

• calculating earth based alignment positions using vectors

  skyfielders/python-skyfield#1080 · Filter by author Cannikev opened on May 10, 2025

• Solar Eclipse calculation routine

  skyfielders/python-skyfield#1078 · Filter by author mindaugl opened on May 2, 2025
  3

• Eclipses for BC crashes

  more information needed
  skyfielders/python-skyfield#1075 · Filter by author jimbabwean opened on Apr 11, 2025
  8

• Inconsistency in NASA delta T on the NASA lunar eclipse page ?

  skyfielders/python-skyfield#1073 · Filter by author jimbabwean opened on Apr 10, 2025

• Using a list of refraction values for calculating sunrises and sunsets

  skyfielders/python-skyfield#1064 · Filter by author roe-dl opened on Mar 26, 2025
  1

• Request: Calculation of solar beta angle for an orbit

  feature request
  skyfielders/python-skyfield#1054 · Filter by author scottshambaugh opened on Mar 13, 2025
  7

  

• Doc: Clarify usage of WGS-72 vs WGS-84

  skyfielders/python-skyfield#1039 · Filter by author scottshambaugh opened on Feb 11, 2025
  1

• Osculating elements in OMM seem to change when creating an EarthSatellite object

  documentation request
  skyfielders/python-skyfield#1037 · Filter by author scottshambaugh opened on Feb 11, 2025
  3

• Support broadcast of multiple WGS84 observers against a single time and target

  feature request
  skyfielders/python-skyfield#1036 · Filter by author andibarg opened on Feb 2, 2025
  5

• [Feature request] Offline use

  documentation request
  skyfielders/python-skyfield#1032 · Filter by author tushev opened on Jan 8, 2025
  1

• Skyfield vs. AstroPy

  documentation request
  skyfielders/python-skyfield#1022 · Filter by author roe-dl opened on Nov 19, 2024

• Question about creating TLE

  documentation request
  skyfielders/python-skyfield#1021 · Filter by author foxittt opened on Nov 12, 2024
  4

• Add IERS EOP data 'Release Date' to a Skyfield function

  feature request
  skyfielders/python-skyfield#1003 · Filter by author aendie opened on Sep 23, 2024

• Add method "is_moonlit"

  feature request
  skyfielders/python-skyfield#1002 · Filter by author Borlaff opened on Sep 20, 2024
  1

• improve observe() speed by making light time correction optional

  documentation request
  skyfielders/python-skyfield#993 · Filter by author smroid opened on Aug 12, 2024
  3