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HD 215171


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Visual measurements of southern double stars. II
A group of 248 micrometric observations of 104 double stars arepresented, forming the second series of a program carried out at Cordobawith a 30 cm refractor. Usually neglected IDS pair south of -60 deg areselected for observation, most of them having been measured only one ortwo times previously. The measurements are compared with all the earlierobservations to derive estimates for the personal equation in P.A. andseparation, and the nature of many pairs is discussed by making use ofcatalog proper motions.

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观测天体数据

星座:杜鵑座
右阿森松:22h44m40.32s
赤纬:-60°07'01.0"
视星:7.922
距离:266.667 天文距离
右阿森松适当运动:44.7
赤纬适当运动:-24.8
B-T magnitude:9.07
V-T magnitude:8.017

目录:
适当名称   (Edit)
HD 1989HD 215171
TYCHO-2 2000TYC 9118-87-1
USNO-A2.0USNO-A2 0225-31613920
HIPHIP 112291

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