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HD 4012


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Pulkovo compilation of radial velocities for 35495 stars in a common system.
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Hipparcos astrometry for 257 stars using Tycho-2 data
We present improved Hipparcos astrometry for 257 Hipparcos stars,resolved into 342 components. For 64 of the stars no astrometry wasobtained in the Hipparcos Catalogue, while for the remaining starsadditional components have been added by this solution or the positionshave been revised considerably. We have used the published Hipparcostransit data for the new solutions, together with results from thesecond reduction of the Tycho data for defining better initial values.Based on observations made with the ESA Hipparcos astrometry satellite.Table 3 is only available in electronic form at the CDS via anonymousftp to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/Abstract.html

A catalog of radial velocities, positions, and proper motions of stars in 19 Kapteyn's northern areas.
Not Available

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Osservazione e dati astrometrici

Costellazione:Cassiopea
Ascensione retta:00h44m21.81s
Declinazione:+77°12'36.1"
Magnitudine apparente:7.833
Distanza:467.29 parsec
Moto proprio RA:-9.1
Moto proprio Dec:19.7
B-T magnitude:9.956
V-T magnitude:8.009

Cataloghi e designazioni:
Nomi esatti
HD 1989HD 4012
TYCHO-2 2000TYC 4497-1705-1
USNO-A2.0USNO-A2 1650-00162873
HIPHIP 3472
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