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HD 21462


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South galactic CAP G and K stars with infrared excesses
Near-infrared and IRAS photometry is discussed for 13 G and K stars inthe south galactic cap. Five of them show a strong flux excess at 12microns as would be expected from dust shells emitting at temperaturesof several hundred Kelvin. One of them (XY Tau) has previously beenclassified as a 206-d Mira, but the new observations suggest it isactually a variable F or G star. The most likely explanation is that theoriginal classification was wrong and that it is in fact apremain-sequence star. The other four stars are either in very unusualevolutionary states or they are binary systems. The presence oflong-term variations in the near-infrared flux of the flare star CC Eriis reported. The colors are redder when the star is fainter, and thevariations might be associated with the star spot cycle.

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Observation and Astrometry data

Constellation:Ωρολόγιον
Right ascension:03h25m24.94s
Declination:-52°22'53.9"
Apparent magnitude:7.802
Distance:358.423 parsecs
Proper motion RA:14.7
Proper motion Dec:15.1
B-T magnitude:9.394
V-T magnitude:7.934

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 21462
TYCHO-2 2000TYC 8065-562-1
USNO-A2.0USNO-A2 0375-01108351
HIPHIP 15957

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