palSupgal palSupgal - Convert from supergalactic to galactic coordinates

Description:
Transformation from de Vaucouleurs supergalactic coordinates to IAU 1958 galactic coordinates

Invocation:
void palSupgal ( double dsl, double dsb, double $*$dl, double $*$db );

Arguments:

dsl = double (Given)
Supergalactic longitude.
dsb = double (Given)
Supergalactic latitude.
dl = double $*$ (Returned)
Galactic longitude.
db = double $*$ (Returned)
Galactic latitude.

See Also

(These two references give different values for the galactic longitude of the supergalactic origin. Both are wrong; the correct value is L2=137.37.)