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HD 148191


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Ca II H and K Photometry on the UVBY System. III. The Metallicity Calibration for the Red Giants
New photometry on the uvby Ca system is presented for over 300 stars.When combined with previous data, the sample is used to calibrate themetallicity dependence of the hk index for cooler, evolved stars. Themetallicity scale is based upon the standardized merger of spectroscopicabundances from 38 studies since 1983, providing an overlap of 122evolved stars with the photometric catalog. The hk index producesreliable abundances for stars in the [Fe/H] range from -0.8 to -3.4,losing sensitivity among cooler stars due to saturation effects athigher [Fe/H], as expected.

The calibration of the Stromgren photometric system for A, F and early G supergiants. I - The observational data
An empirical calibration of the Stromgren uvby-beta photometric systemfor the A, F, and early G supergiants is being derived. This paperexplains the observational program and the photometric reductiontechniques used and presents a catalog of new Stromgren photometry forover 600 A, F, and G supergiants.

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Observation and Astrometry data

Constellation:Norma
Right ascension:16h29m31.14s
Declination:-56°47'55.6"
Apparent magnitude:8.441
Distance:487.805 parsecs
Proper motion RA:-2.1
Proper motion Dec:-1.9
B-T magnitude:9.742
V-T magnitude:8.549

Catalogs and designations:
Proper Names
HD 1989HD 148191
TYCHO-2 2000TYC 8720-1891-1
USNO-A2.0USNO-A2 0300-28601664
HIPHIP 80772

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