THIS SUBROUTINE CONVERTS HIPPARCOS DATA AT EPOCH J1991.25 TO EPOCH J2000.0. TO BE USED ONLY FOR HIPPARCOS OR TYCHO STARS WITH LINEAR SPACE MOTION. BOTH INPUT AND OUTPUT DATA IS IN THE ICRS.
RAH = HIPPARCOS RIGHT ASCENSION IN DEGREES (IN)
DECH = HIPPARCOS DECLINATION IN DEGREES (IN)
PMRAH = HIPPARCOS PROPER MOTION IN RA
IN MILLIARCSECONDS/YEAR (IN)
PMDECH = HIPPARCOS PROPER MOTION IN DEC
IN MILLIARCSECONDS/YEAR (IN)
PARXH = HIPPARCOS PARALLAX IN MILLIARCSECONDS (IN)
RVH = RADIAL VELOCITY AT HIPPARCOS EPOCH
IN KILOMETERS/SECOND (IN)
RA2 = RIGHT ASCENSION AT J2000.0 IN HOURS (OUT)
DEC2 = DECLINATION AT J2000.0 IN DEGREES (OUT)
PMRA2 = PROPER MOTION IN RA AT J2000.0
IN MILLIARCSECONDS/YEAR (OUT)
PMDEC2 = PROPER MOTION IN DEC AT J2000.0
IN MILLIARCSECONDS/YEAR (OUT)
PARX2 = PARALLAX AT J2000.0 IN MILLIARCSECONDS (OUT)
RV2 = RADIAL VELOCITY AT J2000.0 IN KILOMETERS/SECOND
(OUT)
NOTE: INPUT RA IS IN DEGREES, AS PER HIPPARCOS, BUT OUTPUT RA IS IN HOURS.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| real(kind=wp) | :: | rah | ||||
| real(kind=wp) | :: | dech | ||||
| real(kind=wp) | :: | pmrah | ||||
| real(kind=wp) | :: | pmdech | ||||
| real(kind=wp) | :: | parxh | ||||
| real(kind=wp) | :: | rvh | ||||
| real(kind=wp) | :: | ra2 | ||||
| real(kind=wp) | :: | dec2 | ||||
| real(kind=wp) | :: | pmra2 | ||||
| real(kind=wp) | :: | pmdec2 | ||||
| real(kind=wp) | :: | parx2 | ||||
| real(kind=wp) | :: | rv2 |