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HD 179810


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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.

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Observation and Astrometry data

Constellation:Corona Australis
Right ascension:19h15m36.98s
Declination:-38°50'44.1"
Apparent magnitude:7.952
Distance:321.543 parsecs
Proper motion RA:9.2
Proper motion Dec:-13.8
B-T magnitude:9.487
V-T magnitude:8.079

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 179810
TYCHO-2 2000TYC 7918-649-1
USNO-A2.0USNO-A2 0450-37178930
HIPHIP 94652

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