Contenuti
Immagini
Carica la tua immagine
DSS Images Other Images
Articoli relazionati
Positional reference stars in the Magellanic Clouds
The equatorial coordinates are determined of 926 stars (mainly ofgalactic origin) in the direction of the Magellanic Clouds at the meanepoch T = 1978.4 with an overall accuracy characterized by the meanvalues of the O-C coordinates, Sa = 0.35 arcsec and Sd = 0.38 arcsec,calculated from the coordinates of the Perth reference stars. Thesevalues are larger than the accuracy expected for primary standard stars.They allow the new positions to be considered as those of reliablesecondary standard stars. The published positions correspond to anunquestionable improvement of the quality of the coordinates provided inthe current catalogs. This study represents an 'astrometric step' in thestarting of a 'Durchmusterung' of the Magellanic Clouds organized by deBoer (1988, 1989).
|
Sottometti un nuovo articolo
Link relazionati
Sottometti un nuovo link
Membro dei seguenti gruppi:
|
Osservazione e dati astrometrici
| Costellazione: | Idro |
| Ascensione retta: | 02h11m17.63s |
| Declinazione: | -74°30'04.9" |
| Magnitudine apparente: | 7.147 |
| Distanza: | 252.525 parsec |
| Moto proprio RA: | 18.9 |
| Moto proprio Dec: | 6.8 |
| B-T magnitude: | 8.396 |
| V-T magnitude: | 7.251 |
Cataloghi e designazioni:
|
