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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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Посматрања и Астрометриски подаци
| Сазвежђа: | Велики пас |
| Ректацензија: | 07h11m25.17s |
| Deклинација: | -17°19'52.1" |
| Apparent магнитуда: | 6.657 |
| Даљина: | 400 parsecs |
| Proper motion RA: | -6.2 |
| Proper motion Dec: | 3.1 |
| B-T magnitude: | 6.6 |
| V-T magnitude: | 6.653 |
Каталог и designations:
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INHABITED SKY
