Primary ζA Semi-amplitude (K2)
(secondary) 121.2 km/s Companion ζ C | Companion ζ B Primary ζ AB | |
 | ||
ζ Coronae Borealis , Latinised as Zeta Coronae Borealis, is the Bayer designation of a double star in the constellation Corona Borealis. The two components are separated by six arc-seconds and share the same Hipparcos catalogue number and Flamsteed designation. The brighter star, ζ2 Coronae Borealis, is itself a probable spectroscopic triple system.
References
Zeta Coronae Borealis Wikipedia(Text) CC BY-SA