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Spectral Classification of Stars in A Supplement to the Bright Star Catalogue MK spectral types are given for about 584 stars in A Supplement to theBright Star Catalogue. These are compared with Hipparcos parallaxes tocheck the reliability of those classifications. The estimated errors are+/-1.2 subtypes, and 10% of the luminosity classes may be wrong.
| 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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Osservazione e dati astrometrici
Costellazione: | Cane Maggiore |
Ascensione retta: | 07h11m25.17s |
Declinazione: | -17°19'52.1" |
Magnitudine apparente: | 6.657 |
Distanza: | 400 parsec |
Moto proprio RA: | -6.2 |
Moto proprio Dec: | 3.1 |
B-T magnitude: | 6.6 |
V-T magnitude: | 6.653 |
Cataloghi e designazioni:
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