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HD 14480


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A survey for infrared excesses among high galactic latitude SAO stars
This project involves extending the previous analysis of infraredexcesses among a volume-limited sample of 134 nearby A-K main-sequencestars to a magnitude-limited sample of stars, culled from the SAOCatalog, with excesses determined from the IRAS Point Source Catalogflux density ratios. This new sample includes 5706 B-M type stars, 379of which have infrared excesses. The objective involved use of astatistically complete survey of objects in a standard catalog in orderto assess the frequency with which different physical processes canaffect the infrared output of stars. These processes include, but arenot limited to, orbiting cold particle clouds and the onset of rapidmass loss. It is concluded that cold disks are consistent with theinfrared excesses found among A-G dwarfs and G-K giants in the sample.

Planetary nebulae - IUE results
The results of IUE observations of planetary nebulae are listed anddiscussed. With regard to the nebulae themselves, advances inunderstanding the density and temperature profiles across the nebula,the nebular continuum, the ionization structure, the chemicalcomposition, and the nebular dust are presented. With regard to thecentral stars, the mass loss phenomenon from fast winds, thedetermination of the temperature of the nuclei and the consequentimprovement of the star's HR diagram, and the chemical composition ofthe stellar surface layers are considered.

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Observation and Astrometry data

Constellation:おひつじ座
Right ascension:02h20m56.47s
Declination:+27°21'35.2"
Apparent magnitude:8.201
Distance:440.529 parsecs
Proper motion RA:24.9
Proper motion Dec:-17.2
B-T magnitude:10.246
V-T magnitude:8.37

Catalogs and designations:
Proper Names
HD 1989HD 14480
TYCHO-2 2000TYC 1773-1042-1
USNO-A2.0USNO-A2 1125-00751441
HIPHIP 10942

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