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  Astronomy Library - Ecliptic Coordinates

This is the index page for the Ecliptic Coordinates section of the Astronomy Library for SOFA Library Issue 2023-10-11 for ANSI C. The Ecliptic Coordinates section includes the following routines:

Eceq06— Ecliptic coordinates to ICRS RA,Dec, using IAU 2006 precession model
Ecm06— ICRS equatorial to ecliptic rotation matrix, IAU 2006
Eqec06— ICRS equatorial coordinates to ecliptic coordinates using IAU 2006 precession model
Lteceq— Ecliptic coordinates to ICRS RA,Dec, using long-term precession model
Ltecm— ICRS equatorial to ecliptic rotation matrix, long-term precession
Lteqec— ICRS equatorial coordinates to ecliptic coordinates using long-term precession model
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Last modified: 2023 October 08