SLA_EQGAL

J2000 α, δ to Galactic

ACTION:
Transformation from J2000.0 FK5 equatorial coordinates to IAU 1958 galactic coordinates.
CALL:
CALL sla_EQGAL (DR, DD, DL, DB)
GIVEN:

DR,DD

D

J2000.0 [α, δ] (radians)


RETURNED:

DL,DB

D

galactic longitude and latitude [lII, bII] (radians)


NOTE:
The equatorial coordinates are J2000.0 FK5. Use the routine sla_EG50 if conversion from B1950.0 FK4 coordinates is required.
REFERENCE:
Blaauw et al., 1960, Mon.Not.R.astr.Soc., 121, 123.