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HD 39569


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관련 글

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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관측 및 측정 데이터

별자리:오리온자리
적경:05h54m12.16s
적위:+16°20'39.1"
가시등급:8.396
적경상의 고유운동:1.6
적위상의 고유운동:-12.9
B-T magnitude:8.735
V-T magnitude:8.424

천체목록:
일반명   (Edit)
HD 1989HD 39569
TYCHO-2 2000TYC 1312-2348-1
USNO-A2.0USNO-A2 1050-02805212
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