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HD 1834


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Observations of active chromosphere stars
It is pointed out that spectroscopic signatures of stellar chromosphericactivity are readily observable. The present study is concerned with newphotometric and spectroscopic observations of active-chromosphere RSCVn, BY Dra, and FK Com stars. Attention is given to the first resultsof a synoptic monitoring program of many active chromosphere stars.During the time from 1980 to 1982, photometric and spectroscopicobservations of 10 known or suspected active-chromosphere objects weremade. The results regarding the individual stars are discussed. Sevenstars observed with the International Ultraviolet Explorer (IUE) are allspectroscopic binaries.

Local photometric standards for CaII emission stars
UBV data are given for 108 stars which are suitable local standards for52 stars with strong Ca2 emissions. An additional eight stars wererejected as possible standards because of suspected variability.

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观测天体数据

星座:鯨魚座
右阿森松:00h22m48.68s
赤纬:-09°16'41.0"
视星:8.604
距离:10000000 天文距离
右阿森松适当运动:-9.3
赤纬适当运动:-5.2
B-T magnitude:10.551
V-T magnitude:8.765

目录:
适当名称
HD 1989HD 1834
TYCHO-2 2000TYC 5262-576-1
USNO-A2.0USNO-A2 0750-00088191
HIPHIP 1796

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