2002AJ....123.2042U

Query : 2002AJ....123.2042U

2002AJ....123.2042U - Astron. J., 123, 2042-2044 (2002/April-0)

Long-term variable modes in the δ Scuti variable DQ Cephei.

UDOVICHENKO S.N.

Abstract (from CDS):

Differential CCD photometry of the δ Scuti type star DQ Cephei has been carried out over 10 nights (about 55 hr) in 1998. Frequency analysis of the data confirms two pulsation modes, at f1=12.68 cycles day–1 and f2=8.049 cycles day–1. Comparing these observations with results from past years, one can see an amplitude variation in both modes. The variation period will be longer than 50 yr, and the amplitudes of the modes vary with opposite phase.

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Journal keyword(s): Stars: Variables: δ Scuti - stars: individual (DQ Cephei)

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HD 235411 PM* 20 57 31.1107969032 +55 31 38.702522712   10.53 9.76     K0 5 0
2 V* DQ Cep dS* 20 57 48.6082405488 +55 29 15.602746272   7.59 7.26     F1IV 88 0
3 HD 200017 * 20 58 27.2010883464 +55 39 00.451490436   8.27 8.20     A0 11 0

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