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HD 118496


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Three colour observations of southern red variable giant stars
UBV observations have been made of southern red variables of varioustypes over a period of two years. Accurate light curves of about 35variables have been obtained; in many cases the observations coveredmore than one cycle. It appears that the M-type SRb and Lb variablesdefine a curved strip in the (B-V)-(U-B) plane. The mean (U-B) of thevariable stars is about 0.5 mag bluer than the (U-B) of the nonvariableK-type giants. The red variables may be divided into different groups:the carbon stars and the M-type variables, of which the M-type stars areagain to be divided into three groups on the basis of their colorvariations and consequently their loops in the two-color plane.

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Observation and Astrometry data

Constellation:ケンタウルス座
Right ascension:13h38m24.53s
Declination:-50°03'19.0"
Apparent magnitude:7.951
Distance:259.067 parsecs
Proper motion RA:-3.9
Proper motion Dec:15.6
B-T magnitude:9.651
V-T magnitude:8.092

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 118496
TYCHO-2 2000TYC 8269-576-1
USNO-A2.0USNO-A2 0375-18731686
HIPHIP 66540

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