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HD 139930


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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:Γνώμων
Right ascension:15h43m00.52s
Declination:-49°01'29.1"
Apparent magnitude:8.913
Distance:243.309 parsecs
Proper motion RA:-5.4
Proper motion Dec:-27.1
B-T magnitude:9.556
V-T magnitude:8.967

Catalogs and designations:
Proper Names
HD 1989HD 139930
TYCHO-2 2000TYC 8304-1156-1
USNO-A2.0USNO-A2 0375-25430453
HIPHIP 76971

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