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HD 107018


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CCD measurements of visual binaries
CCD measurements of visual double stars were obtained with the ESO 1.5 mdanish reflector. All binaries observed are candidates for the HIPPARCOSInput Catalogue. More than 400 observations have been made in four clearnights. The accuracy obtained is comparable to the accuracy of thephotographic technique, but the observing and reduction times are oneorder of magnitude smaller.

Appulses and occultations of SAO stars by Mercury - 1987-1995
While no readily observable occultations were found in the presentpredictions for 78 close approaches by Mercury to stars in theSmithsonian Astrophysical Observatory catalog (1966) over the periodJanuary 1, 1987-December 31, 1995, seven occultations of stars withvisual magnitudes of 7 or fainter are noted. These events are presentedwith a view to searches for material in the vicinity of Mercury, as wellas investigations requiring close, bright stars for the improvement ofground-based Mercury images.

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观测天体数据

星座:室女座
右阿森松:12h18m24.04s
赤纬:-05°01'53.7"
视星:8.628
距离:100.402 天文距离
右阿森松适当运动:29.7
赤纬适当运动:-143.6
B-T magnitude:9.162
V-T magnitude:8.673

目录:
适当名称
HD 1989HD 107018
TYCHO-2 2000TYC 4946-585-1
USNO-A2.0USNO-A2 0825-07701722
HIPHIP 60006

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