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HD 110391


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The stellar population in the Wolf-Rayet knot in NGC 5430
Ultraviolet and optical spectra and optical imaging were obtained inorder to probe the stellar population in the NGC 5340 WR knot andclarify its relation to star formation elsewhere in the galaxy. Thebarred spiral NGC 5340 contains an extremely luminous H II regionshowing very strong He II and N III Wolf-Rayet emission features. Fromspectrophotometry over the range from 1200-7000 A limits on thereddening and effective temperature have been derived: T eff is between25,000 and 35,000 K. No UV emission lines are clearly detected. TheH-alpha linewidth implies a very short timescale for star formationhere.

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观测天体数据

星座:獵犬座
右阿森松:12h41m20.65s
赤纬:+50°24'57.5"
视星:9.342
右阿森松适当运动:-78.7
赤纬适当运动:5.1
B-T magnitude:9.941
V-T magnitude:9.392

目录:
适当名称   (Edit)
HD 1989HD 110391
TYCHO-2 2000TYC 3458-1939-1
USNO-A2.0USNO-A2 1350-08151101
HIPHIP 61913

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