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HD 143967


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Physical parameters of pulsating variables with periods between one and three days. I - Photometry and metallicities
Based on a new set of observations in the Walraven VBLUW system,obtained at the European Southern Observatory, La Silla, Chile,Fe/H(VBLU) values of 57 pulsating variables, mostly with periods betweenone and three days,. are determined. The distribution of the metalabundances is shown to be essentially bimodal. All the variables withFe/H ratios of less than -0.4 were classified by Diethelm (1983) as RRdstars. They are identified as the galactic field counterpart of theCepheids in the same period range found in globular clusters.

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Observation and Astrometry data

Constellation:Τρίγωνον Νότιον
Right ascension:16h07m01.67s
Declination:-62°45'45.7"
Apparent magnitude:7.69
Distance:248.756 parsecs
Proper motion RA:-5.1
Proper motion Dec:-10.1
B-T magnitude:7.648
V-T magnitude:7.687

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 143967
TYCHO-2 2000TYC 9040-513-1
USNO-A2.0USNO-A2 0225-24590410
HIPHIP 78951

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