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HD 221473


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An IRAS survey of main sequence B, A, and F stars
Results are presented of an IRAS survey of main-sequence B, A, and Fstars, based on three primary sources as a data base: theBernacca-Perinotto Catalog of Stellar Rotational Velocities, theMichigan Spectral Catalog, and the Bright Star Catalog. The stars in thedata base are divided into four categories: (1) main-sequence singlestars, (2) main-sequence close binary stars, (3) spectrally peculiarstars such as Am, Ap, Fm, and Fp stars, and (4) subgiants. It is foundthat about 20 percent of main-sequence single stars show an IR colorexcess in at least one of the 12, 25, or 60 micron IRAS bands, while theother three groups do not show any statistically significant percentageof IR color excess stars. It is also found that stars with large (v sini) values are more likely to show color excesses at IRAS wavelengthsthan stars with small (v sin i) values.

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Osservazione e dati astrometrici

Costellazione:Fenice
Ascensione retta:23h32m40.62s
Declinazione:-45°07'17.2"
Magnitudine apparente:6.906
Distanza:153.61 parsec
Moto proprio RA:25.9
Moto proprio Dec:7.9
B-T magnitude:7.034
V-T magnitude:6.917

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 221473
TYCHO-2 2000TYC 8456-772-1
USNO-A2.0USNO-A2 0375-40312136
HIPHIP 116204

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