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HD 108307


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Lithium in the Coma star cluster
Lithium content of five Am stars and 18 F dwarfs of the Coma cluster wasinvestigated, using high-resolution spectral observations with thecoudespectrograph of the Canada-France-Hawaii telescope. Abundances ofboth Li and Fe were determined by a model atmosphere abundance analysis.It was found that two F stars that have T(eff) range of 6400-6700 K arevery depleted in Li. The five Am stars show real differences relative toone another, in both Li content and Li-line strength, presumably due todiffusion and mass loss.

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观测天体数据

星座:半人馬座
右阿森松:12h26m56.62s
赤纬:-47°23'48.4"
视星:8.247
距离:212.314 天文距离
右阿森松适当运动:37.9
赤纬适当运动:-20.1
B-T magnitude:9.911
V-T magnitude:8.385

目录:
适当名称
HD 1989HD 108307
TYCHO-2 2000TYC 8235-1429-1
USNO-A2.0USNO-A2 0375-15913178
HIPHIP 60743

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