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Open Astronomy

formerly Baltic Astronomy

Editor-in-Chief: Barbuy, Beatriz

IMPACT FACTOR 2018: 0.350

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Volume 12, Issue 3


Interstellar Extinction in the Direction of The Barnard 1 Dark Cloud in Perseus

K. Černis
  • Corresponding author
  • Institute of Theoretical Physics and Astronomy, Vilnius University, Goštauto 12, Vilnius 2600, Lithuania
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ V. Straižys
  • Institute of Theoretical Physics and Astronomy, Vilnius University, Goštauto 12, Vilnius 2600, Lithuania
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2017-02-08 | DOI: https://doi.org/10.1515/astro-2017-0054


Spectral and luminosity classes, absolute magnitudes, color excesses, interstellar extinctions and distances are determined for 98 stars down to 18 mag in the Barnard 1 dark cloud belonging to the Per OB2 association. The classification of stars is based on their photoelectric photometry in the Vilnius seven-color photometric system. The extinction vs. distance diagram exhibits the presence of two dust layers at 150 and 230 pc distances. The distance of the first cloud, which gives an extinction Ay of 0.3 mag, coincides with the distance of the Taurus dark cloud complex. The second cloud with much larger extinction is about at the same distance as the clouds in the direction of the nearby objects: reflection nebula NGC 1333 and open cluster IG 348.

Keywords: techniques; photometric; Vilnius photometric system-stars; fundamental parameters; classification ISM; extinction; dust clouds ISM; individual objects; Barnard 1


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About the article

Received: 2003-06-15

Published Online: 2017-02-08

Published in Print: 2003-09-01

Citation Information: Open Astronomy, Volume 12, Issue 3, Pages 301–321, ISSN (Online) 2543-6376, DOI: https://doi.org/10.1515/astro-2017-0054.

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© 2017. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. BY-NC-ND 4.0

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