A&A 433, 297-304 (2005)
Photometric periods of HN Peg from multichannel analysisJ. You1 and R. Duemmler2
1 Astronomy Division, Department of Physical Sciences, PO Box 3000, 90014 University of Oulu, Finland
2 Frankenallee 201, 60326 Frankfurt/Main, Germany
(Received 9 October 2000 / Accepted 22 November 2004)
We applied the method of three-stage weighted multichannel period analysis (MPA) to photometric observations of HN Peg obtained in 1992-99. We detected two periods: the longer one stayed almost constant near 51 but appeared only during the observing seasons in 1993-98, while the shorter one was present for all observing seasons, having fluctuations within .
Key words: methods: data analysis -- stars: individual: HN Peg -- stars: rotation -- stars: activity -- stars: starspots
© ESO 2005