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Radial velocities. Measurements of 2800 B2-F5 stars for HIPPARCOS
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| MK classification and photometry of stars used for time and latitude observations at Mizusawa and Washington
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| Radial velocity measurements. I - Ground-based observations of the program stars for the HIPPARCOS satellite
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| Hyades and Sirius supercluster members brighter than magnitude (V) 7.1. II - Right ascension six to twelve hours
The present star sample is contained in the Bright Star Catalogue andits Supplement, augmented with a further supplement of 788 stars foundduring various observing programs over the past 40 years. Accurate,four-color and H-beta, or (RI), photometry is available for most of thesupercluster members. The criteria for membership are the comparisons ofthe proper motion, radial velocity, and luminosity obtained from thesupercluster parameters with the observed motions and the luminosityderived from the photometric parameters. New proper motions, based onall available catalogs, have been derived for the additional 788 starsdiscussed here, as well as all supercluster members.
| UBV photometry of stars whose positions are accurately known. II
The present report on the UBV observations of stars with favorableastrometric history gives attention to stars of the BD zones lyingbetween 50 and 54 deg. These observations and their reductions wereperformed from August 1983 to August 1984, as described by Oja (1984).Results are presented as tables for both the standard stars and theprogram stars. Comparisons are conducted between the present Vmagnitudes and those of the NPZT (1982) and AGK3R (1978) catalogs.
| Photoelectric UBV photometry for 317 PZT and VZT stars
UBV data were taken of 317 stars to fill gaps in photoelectric recordsneeded for establishing a terrestrial reference frame for earthorientation purposes. The study supplied the magnitudes and colors andaided in identifying nearby stars without trigonometric parallaxes. Thesurvey averaged over three observations of each object. A complete tableof the V, B-V, U-B and number of observations of each object isprovided.
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Osservazione e dati astrometrici
| Costellazione: | Lince |
| Ascensione retta: | 08h30m34.20s |
| Declinazione: | +54°07'09.0" |
| Magnitudine apparente: | 6.748 |
| Distanza: | 130.719 parsec |
| Moto proprio RA: | -34 |
| Moto proprio Dec: | -10.9 |
| B-T magnitude: | 6.715 |
| V-T magnitude: | 6.746 |
Cataloghi e designazioni:
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