Transformation from IAU 1958 Galactic coordinates to J2000.0 equatorial coordinates. (double precision)
dl,db double galactic longitude and latitude l2,b2
*dr,*dd double J2000.0 RA,dec (all arguments are radians)
slaDcs2c, slaDimxv, slaDcc2s, slaDranrm, slaDrange
The equatorial coordinates are J2000.0. Use the routine slaGe50 if conversion to B1950.0 'FK4' coordinates is required.
Blaauw et al, Mon.Not.R.astron.Soc.,121,123 (1960) P.T.Wallace Starlink 8 December 1993