Nu Boötis
From Infogalactic: the planetary knowledge core
The Bayer designation Nu Boötis (ν Boo / ν Boötis) is shared by two star systems, in the constellation Boötes:
They are separated by 0.17° on the sky.
All of them were member of asterism 七公 (Qī Gōng), Seven Excellencies, Heavenly Market enclosure.[1]
Ptolemy considered Nu Boötis to be shared by Hercules, and Bayer assigned it a designation in both constellations: Nu Boötis (ν Boo) and Psi Herculis (ψ Her). When the modern constellation boundaries were fixed in 1930, the latter designation dropped from use.[2]
References
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