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HD 127804


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Searching for unknown open clusters in the Tycho-2 catalog
We present 11 new open cluster candidates found in a systematic searchfor unknown star clusters using the astrometric and photometric dataincluded in the Tycho 2 catalog. The possible existence of these stellaraggregates is supported by the analysis of proper motions,color-magnitude diagrams, stellar density distributions, and by thevisual inspection of the Digitized Sky Survey (DSS) plates. With thesetools we were able to determine mean absolute proper motions as well aspreliminary reddenings, distances and ages for the majority of thecandidates. We found that most of them are possibly nearby (closer than~ 600 pc) open clusters never studied before.Based on observations of the ESA Hipparcos satellite.Figures 1 and 2 are only available in electronic form athttp://www.edpsciences.org

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观测天体数据

星座:圓規座
右阿森松:14h36m27.34s
赤纬:-66°13'51.2"
视星:9.467
右阿森松适当运动:-4.7
赤纬适当运动:-6.2
B-T magnitude:9.693
V-T magnitude:9.486

目录:
适当名称
HD 1989HD 127804
TYCHO-2 2000TYC 9019-468-1
USNO-A2.0USNO-A2 0225-20522147
HIPHIP 71435

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