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1997A&A...325..559F - Astronomy and Astrophysics, volume 325, 559-562 (1997/9-2)
Oscillations of BT Cancri in the Praesepe cluster.
FREYHAMMER L.M., LARSEN S.S. and PETERSEN J.O.
Abstract (from CDS):
CCD observations in Johnson B of BT Cancri = HD 73575, the brightest δ Scuti variable in the Praesepe cluster, obtained on three nights in February 1994 are described. Using least squares Fourier decomposition, two modes of oscillation frequencies 9.783 and 7.005c/d and amplitudes of 18.0 and 9.9mmag, respectively, are determined. Comparison with data from the literature indicate that BT Cnc may show secular variations in the oscillation spectrum.
Abstract Copyright: ∼
Journal keyword(s): stars: oscillations - stars: δ Sct - stars: individual: BT Cnc (HD 73575)
Simbad objects: 3
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