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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: | Λύρα |
| Right ascension: | 18h50m18.58s |
| Declination: | +30°22'36.8" |
| Apparent magnitude: | 8.166 |
| Distance: | 800 parsecs |
| Proper motion RA: | -5.8 |
| Proper motion Dec: | -18 |
| B-T magnitude: | 10.27 |
| V-T magnitude: | 8.34 |
Catalogs and designations:
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