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HD 91931


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The Pul-3 catalogue of 58483 stars in the Tycho-2 system
A catalogue of positions and proper motions of 58483 stars (Pul-3) hasbeen constructed at the Pulkovo observatory. The Pul-3 is based on theresults of measurements of photographic plates with galaxies (Deutsch'splan). All plates were taken using the Pulkovo Normal Astrograph (thefirst epoch is in the 1950s and the second epoch is in the 1970s).The Pul-3 catalogue contains stars of mainly 12 to 16.5 mag in 146fields with galaxies in the declination zone from -5o to+85o. The Tycho-2 has been used as a reference catalogue.The mean epoch of the Pul-3 is 1963.25. The internal positional accuracyof the Pul-3 catalogue at the mean epoch of observations is ±80mas. The accuracy of the proper motions is mostly within ±3mas/yr to ±12 mas/yr. Comparisons of the Pul-3 with Tycho-2 andARIHIP have been done at the mean epoch of the Pul-3. The Pul-3 externalpositional accuracy relative to Tycho-2 is ±150 mas.The catalogue is only available in electronic form at the CDS viaanonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/418/357

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Datos observacionales y astrométricos

Constelación:Osa Mayor
Ascensión Recta:10h37m59.99s
Declinación:+53°12'39.8"
Magnitud Aparente:8.841
Distancia:244.499 parsecs
Movimiento Propio en Ascensión Recta:10
Movimiento Propio en Declinación:-4.3
B-T magnitude:9.111
V-T magnitude:8.864

Catálogos y designaciones:
Nombres Propios   (Edit)
HD 1989HD 91931
TYCHO-2 2000TYC 3816-100-1
USNO-A2.0USNO-A2 1425-07526570
HIPHIP 52041

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