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HD 57437


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SAO stars with infrared excess in the IRAS Point Source Catalog
We have undertaken a search for SAO stars with infrared excess in theIRAS Point Source Catalog. In contrast to previous searches, the entireIRAS (12)-(25)-(60) color-color diagram was used. This selection yieldeda sample of 462 stars, of which a significant number are stars withcircumstellar material. The stars selected can be identified aspre-main-sequence stars, Be stars, protoplanetary systems, post-AGBstars, etc. A number of objects are (visual) binary stars.Characteristic temperatures and IR excesses are calculated and theirrelations to spectral type are investigated.

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Observation and Astrometry data

Constellation:Grand Chien
Right ascension:07h20m22.83s
Declination:-22°05'04.5"
Apparent magnitude:7.177
Distance:423.729 parsecs
Proper motion RA:-5.4
Proper motion Dec:2.7
B-T magnitude:8.487
V-T magnitude:7.286

Catalogs and designations:
Proper Names
HD 1989HD 57437
TYCHO-2 2000TYC 5978-600-1
USNO-A2.0USNO-A2 0675-05599905
HIPHIP 35566

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