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Submit a new article| Empirical temperature calibrations for early-type stars Three temperature calibrations of suitable photometric quantities havebeen derived for O and B stars. A sample of 120 stars with reliableT(eff.) determinations has been used for establishing each calibration.The different calibrations have been critically discussed and compared.Temperature determinations for 1009 program stars have been obtainedwith an accuracy of the order of 10 percent.
 
 
 |  | UBV photoelectric photometry in four southern Milky Way fields Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1970AJ.....75..324W&db_key=AST
 
 
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| Constellation: | Ιστία |  | Right ascension: | 10h11m03.02s |  | Declination: | -50°49'48.4" |  | Apparent magnitude: | 8.082 |  | Distance: | 234.742 parsecs |  | Proper motion RA: | -21.3 |  | Proper motion Dec: | 5.5 |  | B-T magnitude: | 8.037 |  | V-T magnitude: | 8.079 |  Catalogs and designations:
 
 
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