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HD 257287


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Photoelectric and CCD photometry of eclipsing contact binaries: UV Lyn, FU Dra and AH Aur
New photoelectric BV and CCD BVR observations of the eclipsing contactbinary systems UV Lyn, FU Dra and AH Aur obtained from January 2000 toApril 2001 are presented and analyzed. Photometric elements determinedfrom our light curves combined with published spectroscopic elementsyielded the absolute parameters of the systems. Analysis of the (O-C)diagram of AH Aur revealed fast period changes. The correct ephemerisfor the primary minimum was determined. The evolutionary status of allthree systems is discussed.

GSC 01887-01240: a New Eclipsing Binary
We report the possibility that GSC 01887-01240 is a new eclipsingbinary.

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观测天体数据

星座:雙子座
右阿森松:06h27m21.38s
赤纬:+27°30'11.5"
视星:9.941
右阿森松适当运动:1.2
赤纬适当运动:-60
B-T magnitude:10.957
V-T magnitude:10.025

目录:
适当名称   (Edit)
HD 1989HD 257287
TYCHO-2 2000TYC 1887-765-1
USNO-A2.0USNO-A2 1125-03990803

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