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HD 127853


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BV observations of W UMa-type binaries - CK Boo, BI CVn, and AH VIR
Photoelectric BV observations of W UMa-type binaries CK Boo, BI CVn, andAH Vir are presented, and light curve variations and shifts of minimaare discussed in the context of stellar activity and mass transfer. TheO-C increments in three systems were found to be 0.08, 0.80, and 0.60 sper revolution, respectively. The new ephemeris for the futureobservations were also found.

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观测天体数据

星座:牧夫座
右阿森松:14h33m31.10s
赤纬:+09°12'26.8"
视星:9.237
右阿森松适当运动:-80.7
赤纬适当运动:-28.2
B-T magnitude:9.9
V-T magnitude:9.292

目录:
适当名称   (Edit)
HD 1989HD 127853
TYCHO-2 2000TYC 910-733-1
USNO-A2.0USNO-A2 0975-07515727

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