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HD 79140


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UBV photoelectric catalogue (1986). II - Analysis
The UBV photoelectric data of the stars presenting several entries inthe 1986 edition of the UBV catalog have been systematicallyintercompared, and this paper presents a discussion of the stars forwhich discrepancies larger than 0.2 mag were found. Thirty-six probablyvariable stars have been detected, among which 18 are Be stars. Sixtyfurther stars present differences in the V magnitude larger than 0.2mag. Sixteen stars already appear in the NSV catalog. Although manyproblems are probably due to poor observations, new (eclipsing) variablestars may be found in this sample. Complete disagreement is foundbetween the values published from two independent sources in 34 cases. Afirst analysis of the quality of the UBV data shows that 65 percent ofthe differences in the V magnitude and in U-B color, for respectively11,500 and 7200 stars with two sources of data, are smaller than 0.04.The scatter on the B-V index appears to be smaller, since the samepercentage reaches 79 percent.

UBV Photoelectric Photometry Catalogue (1986). III Errors and Problems on DM and HD Stars
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Photoelectric photometry of late type stars in the direction opposed to galactic rotation
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1974A&AS...16..269G&db_key=AST

Four Southern Photoelectric Sequences
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Osservazione e dati astrometrici

Costellazione:Vele
Ascensione retta:09h10m11.58s
Declinazione:-52°38'59.6"
Magnitudine apparente:8.044
Distanza:465.116 parsec
Moto proprio RA:-0.5
Moto proprio Dec:-8.4
B-T magnitude:9.17
V-T magnitude:8.137

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 79140
TYCHO-2 2000TYC 8583-769-1
USNO-A2.0USNO-A2 0300-06093720
HIPHIP 45020

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