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Photometry and spectroscopy of stars in northern H II regions
New UBV photometry of 60 candidates for the exciting stars of a sampleof optical H II regions between Galactic longitudes 30 and 70 deg ispresented, together with MK spectral types for a smaller number ofstars. These data allow the identification of 11 possible new excitingstars in 7 nebulae. A catalog of basic data on the 36 Sharpless (1959) HII regions in this longitude range has been compiled from the presentobservations and from a reanalysis of existing data and is alsopresented, with notes on individual nebulae.
| Symmetric Galactic Nebulae.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1955ApJ...121..604J&db_key=AST
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Membro dei seguenti gruppi:
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Osservazione e dati astrometrici
| Costellazione: | Aquila |
| Ascensione retta: | 18h46m58.97s |
| Declinazione: | -03°46'48.1" |
| Magnitudine apparente: | 9.635 |
| Moto proprio RA: | -0.6 |
| Moto proprio Dec: | -1.3 |
| B-T magnitude: | 10.066 |
| V-T magnitude: | 9.671 |
Cataloghi e designazioni:
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