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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: | みなみのさんかく座 |
| 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 |
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