Interstellar extinction in the vicinity of the North America and Pelican Nebulae. II

Details Interstellar extinction in the vicinity of the North America and Pelican Nebulae. II Interstellar extinction in the vicinity of the North America and Pelican Nebulae. II

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993balta...2..171s&link_type=abstract

Baltic Astronomy, vol. 2, p. 171

Astronomy and Astrophysics

Astronomy

17

Interstellar Extinction, Nebulae, Astronomical Photometry, Molecular Clouds, Stellar Color, Electrophotometry, Dark Matter

Scientific paper

The results of photoelectric photometry of 564 stars in the Vilnius seven-color system in three areas near the North America and Pelican Nebulae are given. Photometric spectral types, absolute magnitudes, color excesses, interstellar extinction,s and distances to the stars are determined. We find that the dark cloud separating both nebulae is at 580 pc distance. A number of stars immersed in the dark cloud have been found. It seems that the dark cloud extends south down to 40 deg declination. The area southwest of alpha Cygni in the declination zones 42 deg and 43 deg is comparatively transparent at least up to 1 kpc.

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