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HD 21037


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A two-color photometric system for the near infrared
A new two-color system for photoelectic photometry has been devised toaid interpretation of near-infrared photographs taken on the IV-Nemulsion. The system should also lend itself to applications usingsilicon diode detectors. This paper describes the instrumentation,establishment of standard stars, and transformation to other systems. Inaddition, photoelectric sequences are given for some fields near thegalactic plane.

A spectrophotometric survey of stars along the Milky Way. IV
In the present paper a catalogue of spectrophotometric quantities,spectral types, monochromatic magnitudes and colour equivalents is givenfor all stars brighter than the magnitude m4400 = 10.5 in aregion of the Milky Way in Perseus. No absorption is found for starscloser than about r = 100 pc. The absorbing clouds are situated atdistances closer than 1 kpc and at about 2.5 kpc in the local arm andthe Perseus arm, respectively. The space between the two arms is freefrom absorption. It is also concluded that the Perseus arm continuesbeyond l = 140 deg, containing not only hydrogen gas but also dust to atleast l = 150 deg), while the content of OB stars decreases abruptly atl = 140 deg.

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Observation and Astrometry data

Constellation:Giraffe
Right ascension:03h26m16.08s
Declination:+56°08'30.3"
Apparent magnitude:7.621
Distance:236.967 parsecs
Proper motion RA:-17.5
Proper motion Dec:8.3
B-T magnitude:10.077
V-T magnitude:7.824

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 21037
TYCHO-2 2000TYC 3707-29-1
USNO-A2.0USNO-A2 1425-04335829
HIPHIP 16019

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