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Visual multiples. VII - MK classifications
Classifications are given for 865 components of visual multiples; theyshow no systematic differences from the MK system, and the random errorsare one subclass in type and two-thirds of a luminosity class. It isfound that at least 1% of the F-type IV and V stars are weak-lined, 32%of the A4-F1 IV and V stars are Am, and 5% of the A0-A3 IV and V starsare early-type Am. Attention is called to the large fraction (55%) ofthe A3-A9 III-V stars that are of luminosity classes III or IV, unlikethe percentage (16%) at neighboring types.
| Spectroscopic Distance Moduli for 224 O and B Stars.
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Membre dels grups següents:
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Dades d'Observació i Astrometria
| Constel·lació: | Puppis |
| Ascensió Recta: | 08h05m31.69s |
| Declinació: | -13°34'21.1" |
| Magnitud Aparent: | 7.473 |
| Distancia: | 230.947 parsecs |
| Moviment propi RA: | -25.2 |
| Moviment propi Dec: | 5 |
| B-T magnitude: | 7.537 |
| V-T magnitude: | 7.479 |
Catàlegs i designacions:
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