mirror/astronomy
1
0
Fork 0
mirror of https://github.com/cosinekitty/astronomy.git synced 2026-01-20 13:30:28 -05:00
Code Issues Packages Projects Releases Wiki Activity
Files
python_precision_problem
astronomy/source/kotlin/doc/rotation-eqj-ecl.md
Don Cross 281180db24 Use consistent descriptions of EQJ, ECL. 
Use consistent wording for these two orientation systems:
EQJ = J2000 mean equator
ECL = J2000 mean ecliptic
2022-12-08 16:16:41 -05:00

553 B
Raw Permalink Blame History

//astronomy/io.github.cosinekitty.astronomy/rotationEqjEcl

rotationEqjEcl

fun rotationEqjEcl(): RotationMatrix

Calculates a rotation matrix from J2000 mean equator (EQJ) to J2000 mean ecliptic (ECL).

This is one of the family of functions that returns a rotation matrix for converting from one orientation to another. Source: EQJ = equatorial system, using equator at J2000 epoch. Target: ECL = ecliptic system, using equator at J2000 epoch.

Reference in New Issue View Git Blame Copy Permalink