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HD 7749


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Speckle interferometry of HIPPARCOS link stars
Speckle interferometry has been carried out on 39 stars that had beenselected as provisionally suitable for linking Hipparcos positionalmeasurements to an extragalactic reference frame by Space Telescope. TheImperial College, London, speckle interferometer and the autocorrelatoron the Anglo-Australian 3.9-m telescope are used. The result is thatabout 30 percent of the stars selected turned out to be confirmed orsuspected multiple stars in the range 0.03-0.7 arcsec.

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观测天体数据

星座:鯨魚座
右阿森松:01h17m08.56s
赤纬:-11°27'02.6"
视星:9.378
右阿森松适当运动:6.3
赤纬适当运动:-36.6
B-T magnitude:9.969
V-T magnitude:9.427

目录:
适当名称   (Edit)
HD 1989HD 7749
TYCHO-2 2000TYC 5276-411-1
USNO-A2.0USNO-A2 0750-00304126
HIPHIP 5999

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