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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.
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| Photoelektrische Photometrie von Shell-Sternen Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1974A&AS...15..311H&db_key=AST
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Osservazione e dati astrometrici
Costellazione: | Delfino |
Ascensione retta: | 20h15m45.73s |
Declinazione: | +15°19'01.7" |
Magnitudine apparente: | 6.856 |
Distanza: | 76.864 parsec |
Moto proprio RA: | 49.5 |
Moto proprio Dec: | -1.6 |
B-T magnitude: | 7.161 |
V-T magnitude: | 6.882 |
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