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TYC 6569-1198-1


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Spectral classifications in the near infrared of stars with composite spectra. III. Study of a sample of 137 objects with the Aurelie spectrograph
We provide spectral classifications for a sample of 137 stars mentionedas having composite spectra. The classifications were carried out on 33Angstroms /mm spectra in the region 8370 - 8870 Angstroms. Of these 137objects, 115 correspond in the infrared to cool stars (G, K or M) ofluminosity classes III, II and I; for 22 stars, we find only hot spectraof types B, A, F or Am, so that they do not fulfil our definition ofcomposite spectra. We detect four new Am stars, and one Am star (HD70826) turns out to be a composite spectrum object. As in Paper II, thecool components of composite spectra show a strong concentration in thevicinity of G8III. Based upon observations carried out at Observatoirede Haute-Provence (OHP).

A survey of stars with composite spectra.
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观测天体数据

星座:船尾座
右阿森松:08h26m50.39s
赤纬:-23°48'30.2"
视星:8.225
距离:1538.462 天文距离
右阿森松适当运动:-1
赤纬适当运动:-5
B-T magnitude:9.535
V-T magnitude:8.334

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适当名称
TYCHO-2 2000TYC 6569-1198-1
USNO-A2.0USNO-A2 0600-10338570
HIPHIP 41412
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