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HD 31723


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Walraven photometry of nearby southern OB associations
Homogeneous Walraven (VBLUW) photometry is presented for 5260 stars inthe regions of five nearby southern OB associations: Scorpio Centaurus(Sco OB2), Orion OB1, Canis Major OB1, Monoceros OB1, and Scutum OB2.Derived V and (B - V) in the Johnson system are included.

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Observation and Astrometry data

Constellation:Orion
Right ascension:04h58m22.98s
Declination:+02°04'30.2"
Apparent magnitude:9.073
Proper motion RA:2.1
Proper motion Dec:-5.1
B-T magnitude:9.329
V-T magnitude:9.095

Catalogs and designations:
Proper Names
HD 1989HD 31723
TYCHO-2 2000TYC 89-1150-1
USNO-A2.0USNO-A2 0900-01272337
HIPHIP 23111

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