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HD 45540


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Pulkovo compilation of radial velocities for 35495 stars in a common system.
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Radial velocities. Measurements of 2800 B2-F5 stars for HIPPARCOS
Radial velocities have been determined for a sample of 2930 B2-F5 stars,95% observed by the Hipparcos satellite in the north hemisphere and 80%without reliable radial velocity up to now. Observations were obtainedat the Observatoire de Haute Provence with a dispersion of 80Ä,mm(-1) with the aim of studying stellar and galactic dynamics.Radial velocities have been measured by correlation with templates ofthe same spectral class. The mean obtained precision is 3.0 km s(-1)with three observations. A new MK spectral classification is estimatedfor all stars. Based on observations made at the Haute ProvenceObservatory, France and on data from The Hipparcos Catalogue, ESA.Tables 4, 5 and 6 are only available in electronic form at the CDS viaanonymous ftp to cdsarc.u-strasbg.fr or viahttp://cdsweb.u-strasbg.fr/Abstract.htm

A preliminary compilation of DS-programme star positions
A catalog is presented of the double-star-program (DS-program) starpositions, listing right ascensions for 930 DSs and declinations for1225 DSs of the program. The positions were compiled from the observedvalues obtained between 1980 and 1987 with the meridian circles of sixUSSR observatories (the Moscow, Kazan', Kiev, Khar'kov, Odessa, andTashkent Observatories) and the Belgrade Observatory. The measurementsand the treatment of the observational material were performed using therelative method, and the FK-4 system stars were used as reference stars.

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Pozíciós és asztrometriai adatok

Csillagkép:Szekeres
Rektaszcenzió:06h29m46.47s
Deklináció:+36°36'11.4"
Vizuális fényesség:8.744
Távolság:10000000 parszek
RA sajátmozgás:-6.3
Dec sajátmozgás:-26.1
B-T magnitude:8.947
V-T magnitude:8.761

Katalógusok és elnevezések:
Megfelelő nevek
HD 1989HD 45540
TYCHO-2 2000TYC 2434-572-1
USNO-A2.0USNO-A2 1200-04846880
HIPHIP 30950

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