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HD 23688


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Pulkovo compilation of radial velocities for 35495 stars in a common system.
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The Tokyo PMC catalog 90-93: Catalog of positions of 6649 stars observed in 1990 through 1993 with Tokyo photoelectric meridian circle
The sixth annual catalog of the Tokyo Photoelectric Meridian Circle(PMC) is presented for 6649 stars which were observed at least two timesin January 1990 through March 1993. The mean positions of the starsobserved are given in the catalog at the corresponding mean epochs ofobservations of individual stars. The coordinates of the catalog arebased on the FK5 system, and referred to the equinox and equator ofJ2000.0. The mean local deviations of the observed positions from theFK5 catalog positions are constructed for the basic FK5 stars to comparewith those of the Tokyo PMC Catalog 89 and preliminary Hipparcos resultsof H30.

Mesures de vitesses radiales. VII. Accompagnement AU sol DU programme d'observation DU satellite Hipparcos. Radial velocities. VII. Ground based measurements for Hipparcos.
We publish 734 radial velocities of stars distributed in 28 fields of4x4deg. We continue the PPO series (Fehrenbach et al. 1987; Duflot etal. 1990 and 1992), using the Fehrenbach objective prism method.

Yerkes actinometry. Zone +73deg to +90deg.
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Membro dei seguenti gruppi:

Osservazione e dati astrometrici

Costellazione:Giraffa
Ascensione retta:03h53m55.90s
Declinazione:+74°39'57.6"
Magnitudine apparente:7.754
Distanza:271.739 parsec
Moto proprio RA:8.4
Moto proprio Dec:-24
B-T magnitude:9.085
V-T magnitude:7.864

Cataloghi e designazioni:
Nomi esatti
HD 1989HD 23688
TYCHO-2 2000TYC 4339-2106-1
USNO-A2.0USNO-A2 1575-01842554
HIPHIP 18232
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