SLA_EG50

B1950 α, δ to Galactic

ACTION:
Transformation from B1950.0 FK4 equatorial coordinates to IAU 1958 galactic coordinates.
CALL:
CALL sla_EG50 (DR, DD, DL, DB)
GIVEN:

DR,DD

D

B1950.0 [α, δ] (radians)


RETURNED:

DL,DB

D

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


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