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HD 251087


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Observations of Double Stars and New Pairs. XVII.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1996ApJS..105..475H&db_key=AST

Observations of double stars and new pairs. XV
The study reports visual and photographic measures listed for 1150 pairsobtained in the time frame 1989.91-1992.15, including 221 new doublestars. Magnitudes were estimated for a part of the objects, especiallythe fainter ones. Plate orientations were calculated from field stars ofknown positions and were precessed to the epoch; numbers of nights andof measured exposures are given. Reobservation of faint, neglected pairsreveal many corrections to the data from the old discovery lists.

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观测天体数据

星座:獵戶座
右阿森松:06h03m57.75s
赤纬:+09°20'32.1"
视星:9.58
右阿森松适当运动:-92.4
赤纬适当运动:-56.8
B-T magnitude:10.431
V-T magnitude:9.651

目录:
适当名称
HD 1989HD 251087
TYCHO-2 2000TYC 717-108-1
USNO-A2.0USNO-A2 0975-02493113

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