Scope

SLALIB contains 188 routines covering the following topics:

• String Decoding, Sexagesimal Conversions
• Angles, Vectors & Rotation Matrices
• Calendars, Time Scales
• Precession & Nutation
• Proper Motion
• FK4/FK5/Hipparcos, Elliptic Aberration
• Geocentric Coordinates
• Apparent & Observed Place
• Azimuth & Elevation
• Refraction & Air Mass
• Ecliptic, Galactic, Supergalactic Coordinates
• Ephemerides
• Astrometry
• Numerical Methods