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HD 335569


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Exact equatorial coordinates of known or new components of some 200 double or multiple systems
A catalog of binary and multiple star systems is being defined as aprelude to astrometric measurements scheduled for the Hipparchossatellite, which will be launched in 1988. Each system is beingphotographed twice to account for known and new components. Positivedeclinations are drawn from the AGK3 catalog, while the SAO catalogfurnishes the negative declinations. Mean square errors are beingcomputed for positions recorded in each of the photographs, yielding anumerical accuracy of 0.001 sec and 0.01 arcsec. The resulting data basewill contain the UNSO designation, the component types, the system name,the photographic magnitude, the spectrum, the observation epoch, theright ascension, the equinoctial declination, the angular position indegrees from the 2000.0 equinox, the recorded position, and remarks asto known features of the objects.

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观测天体数据

星座:武仙座
右阿森松:18h03m12.24s
赤纬:+25°21'55.8"
视星:8.486
距离:337.838 天文距离
右阿森松适当运动:-6.8
赤纬适当运动:36.7
B-T magnitude:8.927
V-T magnitude:8.523

目录:
适当名称
HD 1989HD 335569
TYCHO-2 2000TYC 2095-3226-1
USNO-A2.0USNO-A2 1125-08900941
HIPHIP 88424

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