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Far-ultraviolet stellar photometry - A field in Monoceros
FUV photometry of stars in a field in Monoceros in the wavelength rangefrom 1230 to 1600 A has been carried out using data from anelectrographic Schmidt camera carried on a sounding rocket. Ultravioletmagnitudes were extracted for 602 objects in the field. Fifty-eightpercent were tentatively identified with visible stars using the SIMBADdata base while another 25 percent are blends of objects too closetogether to separate with our resolution. Eleven of the UV objectscoincide with parts of the star clusters NGC 2169, NGC 2244, and NGC2264 in which individual stars cannot be resolved. As in previousstudies, the majority of the identified ultraviolet sources areidentified with early-stars. However, there are a significant number forwhich no such identification was possible, and we suggest that many ofthese are nearby white dwarfs.
| Walraven photometry of nearby southern OB associations
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| Catalog of BV magnitudes and spectral classes of 6000 stars
The present catalog, compiled at the Abastumani Observatory, contains BVmagnitudes and spectral classes of about 6000 stars up to V(lim) = 13.0min five circular areas of 18 sq deg located near the salactic-equatorplane. The catalog is intended for star-statistics studies ofstar-formation regions.
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Osservazione e dati astrometrici
| Costellazione: | Unicorno |
| Ascensione retta: | 06h27m53.51s |
| Declinazione: | +07°07'45.6" |
| Magnitudine apparente: | 8.801 |
| Distanza: | 446.429 parsec |
| Moto proprio RA: | -0.3 |
| Moto proprio Dec: | -1.1 |
| B-T magnitude: | 8.945 |
| V-T magnitude: | 8.813 |
Cataloghi e designazioni:
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