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HD 12404


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Photometry of F-K type bright giants and supergiants. I - Intermediate band and H-Beta observations
Over 1500 observations of 560 bright giants and supergiants of types F-Kare presented and compared to the observations by Gray and Olsen (1991).The present results include intermediate-band which is slightlydifferent from the Stromgren data by Gray and Olsen due to a differentwidth for the v filter. A systematic difference in m(1) - M(1) withdecreasing temperature is noted in the two H-Beta data sets, and thecorrelations are defined.

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观测天体数据

星座:鯨魚座
右阿森松:02h01m39.38s
赤纬:+01°20'35.4"
视星:8.494
距离:156.495 天文距离
右阿森松适当运动:51.3
赤纬适当运动:-4.1
B-T magnitude:9.014
V-T magnitude:8.537

目录:
适当名称
HD 1989HD 12404
TYCHO-2 2000TYC 37-606-1
USNO-A2.0USNO-A2 0900-00472641
HIPHIP 9457

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