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HD 103885


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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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Observation and Astrometry data

Constellation:りゅう座
Right ascension:11h57m59.86s
Declination:+73°46'54.2"
Apparent magnitude:8.797
Distance:150.376 parsecs
Proper motion RA:-10.4
Proper motion Dec:-5.5
B-T magnitude:9.309
V-T magnitude:8.84

Catalogs and designations:
Proper Names
HD 1989HD 103885
TYCHO-2 2000TYC 4399-1049-1
USNO-A2.0USNO-A2 1575-03214430
HIPHIP 58353
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