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HD 196084


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관련 글

The evolution of asymptotic giant branch stars in the Large Magellanic Cloud. II - Spectroscopy of a complete sample
Spectra of 113 asymptotic giant branch (AGB) star candidatesconstituting six magnitude-limited, area-complete samples in the outerregions of the northern LMC have been obtained. Luminosity functionsconstructed from these data are well represented by an underlyingintermediate-mass AGB population, the product of continuous starformation over the last 3-4 Gyr, supplemented in some areas by moremassive red giant and supergiant stars, with a typical age of about 10to the 8th yr. Most stars with Mbol between -5 and -5.5 show evidencefor dredge-up of s-process elements, as do a smaller proportion in therange Mbol between -4.5 and -5. Only 10 percent of the sample, however,are C stars, and these are concentrated toward the Bar of the LMC. Noevidence has been found for envelope burning in any of the stars in thesample.

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관측 및 측정 데이터

별자리:인디언자리
적경:20h37m20.55s
적위:-53°03'46.0"
가시등급:9.169
적경상의 고유운동:-7.5
적위상의 고유운동:-3.4
B-T magnitude:10.415
V-T magnitude:9.272

천체목록:
일반명   (Edit)
HD 1989HD 196084
TYCHO-2 2000TYC 8790-203-1
USNO-A2.0USNO-A2 0300-36719502
HIPHIP 101749

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