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HD 194260


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Interstellar extinction in the vicinity of the North America and Pelican Nebulae. II
The results of photoelectric photometry of 564 stars in the Vilniusseven-color system in three areas near the North America and PelicanNebulae are given. Photometric spectral types, absolute magnitudes,color excesses, interstellar extinction,s and distances to the stars aredetermined. We find that the dark cloud separating both nebulae is at580 pc distance. A number of stars immersed in the dark cloud have beenfound. It seems that the dark cloud extends south down to 40 degdeclination. The area southwest of alpha Cygni in the declination zones42 deg and 43 deg is comparatively transparent at least up to 1 kpc.

Mesures d'étoiles doubles faites à l'équatorial de 38 CM de l'Observatoire de Paris
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1972A&AS....6..147B&db_key=AST

Micrometer Measures of Double Stars.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1961ApJS....6....1K&db_key=AST

Micrometer Measures of Double Stars.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1959ApJS....4...45V&db_key=AST

The spectra, magnitudes and colours of O-A type stars in an area of the Milky Way, with the Center alpha = 20h16m, delta = +42 D 30'.
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Membro dei seguenti gruppi:

Osservazione e dati astrometrici

Costellazione:Cigno
Ascensione retta:20h23m02.67s
Declinazione:+42°59'38.3"
Magnitudine apparente:8.003
Distanza:460.829 parsec
Moto proprio RA:-3.1
Moto proprio Dec:-16.7
B-T magnitude:8.12
V-T magnitude:8.013

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 194260
TYCHO-2 2000TYC 3160-946-1
USNO-A2.0USNO-A2 1275-13876753
HIPHIP 100529
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