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HD 162296


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A-type shell stars and infrared sources
Following the discovery of a dust cloud around an A-type shell star, thesituation of all known Ae/A shell stars is examined. Nineteen stars ofthis group observed by IRAS are found, and of these 19, eight areinfrared anomalous emitters (IAE). The temperatures of the anomalousemitting sources are of the order of 50-400 K, although three casesrequire two superposed cool sources. The proportion of IAEs among Ae/Ashell stars is very high, when compared to a sample of nonshell A-typestars. This suggests a close link between the membership in the groupand IAE.

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Observation and Astrometry data

Constellation:くじゃく座
Right ascension:17h53m48.64s
Declination:-57°59'19.3"
Apparent magnitude:8.532
Distance:14285.714 parsecs
Proper motion RA:7
Proper motion Dec:-1.1
B-T magnitude:10.556
V-T magnitude:8.7

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 162296
TYCHO-2 2000TYC 8750-1288-1
USNO-A2.0USNO-A2 0300-32939695
HIPHIP 87608

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