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HD 172556


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Northern JHK Standard Stars for Array Detectors
We report J, H, and K photometry of 86 stars in 40 fields in theNorthern Hemisphere. The fields are smaller than or comparable to a 4' x4' field of view and are roughly uniformly distributed over the sky,making them suitable for a homogeneous broadband calibration network fornear-infrared panoramic detectors. K magnitudes range from 8.5 to 14 andJ-K colors, from -0.2 to 1.2. The photometry is derived from a total of3899 reduced images; each star has been measured, on average, 26.0 timesper filter on 5.5 nights. Typical errors on the photometry are ~0.012mag.

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观测天体数据

星座:天龍座
右阿森松:18h36m10.63s
赤纬:+65°04'29.8"
视星:8.391
距离:180.505 天文距离
右阿森松适当运动:5.3
赤纬适当运动:4.5
B-T magnitude:8.628
V-T magnitude:8.411

目录:
适当名称
HD 1989HD 172556
TYCHO-2 2000TYC 4223-1366-1
USNO-A2.0USNO-A2 1500-06555874
HIPHIP 91190

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