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HD 77187


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관련 글

Visual measurements of southern double stars
A double-star observing program is described which has been started atCordoba with a 30 cm refractor. Usually neglected Index Catalog ofVisual Double Stars (IDS) pairs south of -60 deg are selected forobservation, most of them having been measured only one or two timespreviously. A total of 174 micrometric observations of 78 wide pairs arepresented together with a few measurements of 9 double stars not foundin the IDS. Also reported is a list of 135 additional measurements of 26test stars. By comparison with all earlier observations, an estimate forthe personal equation has been made, which is applied in combinationwith catalogue proper motions to investigate the nature of many of thesepairs.

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다음 그룹에 속해있음:


관측 및 측정 데이터

별자리:날치자리
적경:08h57m21.10s
적위:-66°12'14.9"
가시등급:7.576
거리:164.204 파섹
적경상의 고유운동:-36.4
적위상의 고유운동:38.5
B-T magnitude:8.881
V-T magnitude:7.684

천체목록:
일반명   (Edit)
HD 1989HD 77187
TYCHO-2 2000TYC 8939-2728-1
USNO-A2.0USNO-A2 0225-05057521
HIPHIP 43979

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