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HD 56868


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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.

Vitesses radiales dans 4 champs de petite latitude galactique.
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Observation and Astrometry data

Constellation:Gémeaux
Right ascension:07h19m25.08s
Declination:+16°06'17.3"
Apparent magnitude:8.923
Proper motion RA:-5.3
Proper motion Dec:-2.6
B-T magnitude:8.963
V-T magnitude:8.927

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 56868
TYCHO-2 2000TYC 1346-1349-1
USNO-A2.0USNO-A2 1050-05023315
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