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Enviar un nou article| 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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| Constel·lació: | Aquila |  | Ascensió Recta: | 18h46m58.97s |  | Declinació: | -03°46'48.1" |  | Magnitud Aparent: | 9.635 |  | Moviment propi RA: | -0.6 |  | Moviment propi Dec: | -1.3 |  | B-T magnitude: | 10.066 |  | V-T magnitude: | 9.671 |  Catàlegs i designacions:
 
 
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