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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.
| Photometrie de la comete Arend-Roland.
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Zurafa |
| Sað Açýklýk: | 07h55m30.73s |
| Yükselim: | +62°02'38.1" |
| Görünürdeki Parlaklýk: | 7.038 |
| Uzaklýk: | 290.698 parsek |
| özdevim Sað Açýklýk: | -0.9 |
| özdevim Yükselim: | 8.1 |
| B-T magnitude: | 8.626 |
| V-T magnitude: | 7.17 |
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