SLA_GE50 - Galactic to B1950 $\alpha,\delta$

ACTION:

Transformation from IAU 1958 galactic coordinates to B1950.0 FK4 equatorial coordinates.

CALL:

CALL sla_GE50 (DL, DB, DR, DD)

GIVEN:

$$[\,l^{I\!I},b^{I\!I}\,]$$ DL,DB

RETURNED:

$$[\,\alpha,\delta\,]$$ DR,DD

NOTES:

1.

All arguments are in radians.

2.

The equatorial coordinates are B1950.0 FK4. Use the routine sla_GALEQ if conversion to J2000.0 FK5 coordinates is required.

REFERENCE:

Blaauw et al., 1960, Mon.Not.R.astr.Soc., 121, 123.