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Ýlgili Makaleler
A catalogue of QSOs and link stars for the HST link of the HIPPARCOS reference frame
A list of bright (less than 17 mag) southern QSOs and bright (less than11 mag) stars that may be suitable for the Hubble Space Telescope linkbetween the Hipparcos astrometric reference frame and the VLBIextragalactic frame is presented. The QSOs have been selected fromvarious lists of radio objects and identifications. The stars have beenselected from the Strasbourg (CDS) data base and from the PreliminarySecond Cape Photographic Catalog, and supplemented with stars measuredfrom the SERC IIIa-J Schmidt survey. These QSOs and stars have beenincluded in the Hipparcos and HST schedule of observations.
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Erbogan |
| Sað Açýklýk: | 12h57m35.17s |
| Yükselim: | -33°52'20.3" |
| Görünürdeki Parlaklýk: | 8.722 |
| Uzaklýk: | 147.493 parsek |
| özdevim Sað Açýklýk: | -21.9 |
| özdevim Yükselim: | -9.8 |
| B-T magnitude: | 9.192 |
| V-T magnitude: | 8.761 |
Kataloglar ve belirtme:
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