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HD 150066


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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.

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观测天体数据

星座:蛇夫座
右阿森松:16h38m40.69s
赤纬:-01°11'01.7"
视星:7.952
距离:167.785 天文距离
右阿森松适当运动:-24.3
赤纬适当运动:-8.3
B-T magnitude:9.282
V-T magnitude:8.062

目录:
适当名称   (Edit)
HD 1989HD 150066
TYCHO-2 2000TYC 5049-745-1
USNO-A2.0USNO-A2 0825-09530429
HIPHIP 81491

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