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.help eg50 Jun99 "Slalib Package"
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SUBROUTINE slEG50 (DR, DD, DL, DB)
- - - - -
E G 5 0
- - - - -
Transformation from B1950.0 'FK4' equatorial coordinates to
IAU 1958 galactic coordinates (double precision)
Given:
DR,DD dp B1950.0 'FK4' RA,Dec
Returned:
DL,DB dp galactic longitude and latitude L2,B2
(all arguments are radians)
Called:
slDS2C, slDMXV, slDC2S, slSUET, slDA2P, slDA1P
Note:
The equatorial coordinates are B1950.0 'FK4'. Use the
routine slEQGA if conversion from J2000.0 coordinates
is required.
Reference:
Blaauw et al, Mon.Not.R.Astron.Soc.,121,123 (1960)
P.T.Wallace Starlink 5 September 1993
Copyright (C) 1995 Rutherford Appleton Laboratory
Copyright (C) 1995 Association of Universities for Research in Astronomy Inc.
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.endhelp
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