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V2331 Cygni is an Algol Variable With Deep Eclipses

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Hans Bengtsson

Sagogången 55, SE-422 45 Hisings Backa, Sweden

Pierre Hallsten

Älgvägen 13, SE-137 32 Västerhaninge, Sweden

Anders Hemlin

Karlavägen 11, SE-802 66 Gävle, Sweden

Gustav Holmberg

Karl XI-gatan 8A, SE-222 20 Lund, Sweden

Thomas Karlsson

Almers väg 19, SE-432 51 Varberg, Sweden

Robert Wahlström

Klintens väg 6, SE-441 41 Alingsås, Sweden

Tomas Wikander

Bogservägen 8, SE-784 77 Borlänge, Sweden

Received April 9, 2013; accepted May 1, 2013

Abstract

We report the discovery that V2331 Cygni is not an L star but an eclipsing variable with deep minima, and present a determination of the elements of the star: Epoch = HJD 2456184.296 ±0.001 and Period = 1.3886 ± 0.0001 days.