Interstellar extinction in the area of the North America and Pelican Nebulae complex

Details Interstellar extinction in the area of the North America and Pelican Nebulae complex Interstellar extinction in the area of the North America and Pelican Nebulae complex

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...222...82s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 222, no. 1-2, Sept. 1989, p. 82-84.

Astronomy and Astrophysics

Astrophysics

22

Cygnus Constellation, Interstellar Extinction, Planetary Nebulae, Stellar Color, Stellar Magnitude, Cosmic Dust, H Ii Regions, North America

Scientific paper

Interstellar extinction is investigated in the area including the North America Nebula, the Pelican Nabula, the dark cloud separating both the nebulae, and the nearby area south of Alpha Cygni. Determination of spectral classes, absolute magnitudes, and color excesses of 249 stars is based on their photometry in the Vilnius seven-color photometric system. The distance of the dark cloud is found to be 550 + or - 100 pc. The area west of the Pelican Nebula and south of Alpha Cygni is comparatively transparent at least up to 700 pc.

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