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TYC 1797-636-1


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Investigation of the Pleiades cluster. I - Radial velocities of corona stars
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A VBLUW photometric survey of the Pleiades cluster
Photometric data are presented for 390 known or suspected members of thePleiades cluster. The data were obtained in 1979 at ESO using theWalraven VBLUW photometer and the Dutch 91-cm telescope. A comparisonwas made with subsets obtained with the same telescope andinstrumentation at the former Leiden Southern Station at the SAAO annexduring 1976 and 1977, and with data obtained at ESO during 1980 and1981. The much improved performance of the telescope and the photometerat their new site is obvious from these comparisons. The stars measuredcomprise the selection of possible members by Hertzsprung (1947)brighter than m(pg) = 14.5 and a selection of possible members in theouter region of the cluster by Pels et al. (1975). Of the starsselected, 66 were found not to be members. A few of these are possiblyescaping members. The present data set provides a well determined mainsequence over the range K2V to B9V, as well as data on some of theprobably premain-sequence K2-to-K5 and postmain-sequence B8-to-B6 stars.Finding charts for the stars selected by Pels are presented in anappendix.

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Observation and Astrometry data

Constellation:Widder
Right ascension:03h27m39.40s
Declination:+22°53'52.1"
Apparent magnitude:10.881
Proper motion RA:4.8
Proper motion Dec:-31.9
B-T magnitude:11.612
V-T magnitude:10.942

Catalogs and designations:
Proper Names   (Edit)
TYCHO-2 2000TYC 1797-636-1
USNO-A2.0USNO-A2 1125-01124445
HIPHIP 16119

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