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HD 214853


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The late A-type stars - Refined MK classification, confrontation with Stromgren photometry, and the effects of rotation
The MK spectral classification for late A-type stars is refined and theeffects of rotation of spectral classification and uvby(beta) photometryfor these stars are examined. It is found that, for A3 stars, the4417/4481 A wavelength ratio produces results that are inconsistent withthe Stark broadening of the H lines. It is suggested that this ratio isnot useful as a luminosity criterion at any spectral type.Self-consistent sequences of narrow- and broadline standards areestablished. The results of the refined classification system arecompared with Stromgren photometry, showing a set of low-v sin i A-typestars with anomalously large delta(c1) indices for theirluminosity types. It is proposed that these stars are rapid rotatorsseen at fairly low inclination angles.

A finding list of stars of spectral type A7 and earlier in regions at high galactic latitudes. VI. Near South Galactic Pole.
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Observation and Astrometry data

Constellation:Poisson austral
Right ascension:22h41m26.13s
Declination:-27°15'25.4"
Apparent magnitude:7.794
Distance:317.46 parsecs
Proper motion RA:-12.3
Proper motion Dec:-12.2
B-T magnitude:7.995
V-T magnitude:7.811

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 214853
TYCHO-2 2000TYC 6966-722-1
USNO-A2.0USNO-A2 0600-44240868
HIPHIP 112024
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