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HD 130997


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Pulkovo compilation of radial velocities for 35495 stars in a common system.
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Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Subtittle: Radial velocities: The Wilson-Evans-Batten catalogue.
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A search for binaries in the globular cluster NGC 3201
We present BV charge coupled devices (CCD) and Automated Plate Measuring(APM) photometry, accurate astrometry and 1859 radial velocities for1318 stars within approximately 36 min. of the Galactic globular clusterNGC 3201. The field and cluster populations separate unambiguously intwo distinct samples since the systemic radial velocity of NGC 3201 is494.2 km/sec. After removal of the 19 known NGC 3201 photometricvariables in our sample, we have a database of 930 radial velocities for420 member giants (276 of which have multiple velocity measurements)with which to identify spectroscopic binaries on the basis of radialvelocity variations. The mean time span of the observations is 1.7 yr,with coverage up to approximately 6 yr for our best-studied stars. MonteCarlo simulations of the observed velocity variations have providedupper limits to the cluster binary fraction (for binaries with 0.1 lessthan or equal to P less than or equal to 5 to 10 yr and mass ratios inthe range 0.1 to 1 of 0.06 to 0.10 (circular orbits) and 0.15 to 0.18(eccentric orbits). These results suggest an incidence of binarism forNGC 3201 consistent with the corresponding incidence among nearbysolar-type stars having similar periods and mass ratios (0.04 to 0.08)and that for a small sample of other globular clusters (0.05-0.12)studied by Hut et al. (1992).

UBV (RI)c standard stars in the E- and F-regions and in the Magellanic Clouds - a revised catalogue.
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Observation and Astrometry data

Constellation:おおかみ座
Right ascension:14h52m42.98s
Declination:-45°35'26.4"
Apparent magnitude:9.163
Proper motion RA:-4.3
Proper motion Dec:2.2
B-T magnitude:10.567
V-T magnitude:9.279

Catalogs and designations:
Proper Names
HD 1989HD 130997
TYCHO-2 2000TYC 8280-1641-1
USNO-A2.0USNO-A2 0375-22611102
HIPHIP 72793
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