CCD photometry and classification of stars in the North America and Pelican nebulae region. I. Moletai photometry

Details CCD photometry and classification of stars in the North America and Pelican nebulae region. I. Moletai photometry CCD photometry and classification of stars in the North America and Pelican nebulae region. I. Moletai photometry

2002-09-21

arxiv.org/abs/astro-ph/0209449v1

Baltic Astron. 11 (2002) 205-218

Astronomy and Astrophysics

Astrophysics

14 pages, 6 figures to be published in Baltic Astronomy journal

Scientific paper

Magnitudes and color indices in the Vilnius seven-color system are measured for 690 stars down to ~13.2 mag in the area of the North America and Pelican nebulae. Spectral types, absolute magnitudes, color excesses, interstellar extinctions and distances of the stars are determined. The plots of interstellar extinction Av versus distance for the North America Nebula and for the dark cloud L935 show that both areas are covered by the same absorbing cloud, situated at a distance of 600 pc. The maximal extinction in the area of the nebula is ~3 mag, while in the dark cloud L935 it is much greater.

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