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HD 160768


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CCD astrometry and instrumental Delta-V photometry of wide visual double stars. III - Differential measurements of often observed southern pairs
We present accurate relative positions and instrumental visual (BesselV) magnitude differences of southern wide star components. The meanaccuracy of the angular separation is 0.02 arcsecs, which corresponds to1.5 micron on the CCD chip, and of magnitude difference 0.007mag/exposure. The program pairs are targets of the HIPPARCOS mission andthey have been observed at least four times in the last 150 yrs.

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观测天体数据

星座:蛇夫座
右阿森松:17h42m40.52s
赤纬:-22°22'11.0"
视星:9.118
右阿森松适当运动:-7.1
赤纬适当运动:-66.4
B-T magnitude:9.86
V-T magnitude:9.18

目录:
适当名称
HD 1989HD 160768
TYCHO-2 2000TYC 6260-9-1
USNO-A2.0USNO-A2 0675-21654251
HIPHIP 86684

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