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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.
| Hyades and Sirius supercluster members brighter than magnitude (V) 7.1. II - Right ascension six to twelve hours
The present star sample is contained in the Bright Star Catalogue andits Supplement, augmented with a further supplement of 788 stars foundduring various observing programs over the past 40 years. Accurate,four-color and H-beta, or (RI), photometry is available for most of thesupercluster members. The criteria for membership are the comparisons ofthe proper motion, radial velocity, and luminosity obtained from thesupercluster parameters with the observed motions and the luminosityderived from the photometric parameters. New proper motions, based onall available catalogs, have been derived for the additional 788 starsdiscussed here, as well as all supercluster members.
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Member of following groups:
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Observation and Astrometry data
| Constellation: | Τρόπις |
| Right ascension: | 09h42m39.31s |
| Declination: | -72°11'26.9" |
| Apparent magnitude: | 6.531 |
| Distance: | 327.869 parsecs |
| Proper motion RA: | -13.7 |
| Proper motion Dec: | 8.9 |
| B-T magnitude: | 6.536 |
| V-T magnitude: | 6.532 |
Catalogs and designations:
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