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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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Observation and Astrometry data

Constellation:Δράκων
Right ascension:18h36m10.63s
Declination:+65°04'29.8"
Apparent magnitude:8.391
Distance:180.505 parsecs
Proper motion RA:5.3
Proper motion Dec:4.5
B-T magnitude:8.628
V-T magnitude:8.411

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 172556
TYCHO-2 2000TYC 4223-1366-1
USNO-A2.0USNO-A2 1500-06555874
HIPHIP 91190

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