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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.
| Hyades and Sirius supercluster members brighter than magnitude(V) 7.1. I - The first six hours of right ascension
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Osservazione e dati astrometrici
| Costellazione: | Eridano |
| Ascensione retta: | 04h14m19.86s |
| Declinazione: | -38°15'36.1" |
| Magnitudine apparente: | 6.931 |
| Distanza: | 195.695 parsec |
| Moto proprio RA: | 34 |
| Moto proprio Dec: | 51.1 |
| B-T magnitude: | 8.18 |
| V-T magnitude: | 7.035 |
Cataloghi e designazioni:
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