Kappa Tauri [SEP] constellation
Kappa Tauri
Kappa Tauri (κ Tau, κ Tauri) is a double star in the constellation Taurus, the two components κ Tauri and κ Tauri both members of the Hyades open cluster. The pair are approximately 150 light years from Earth and are separated from each other by about six light years.
System.
The system is dominated by a visual double star, κ Tauri and κ Tauri. κ Tauri is a white A-type subgiant with an apparent magnitude of +4.22. It is emitting an excess of
infrared radiation at a temperature indicating there is a circumstellar disk in orbit at a radius of 67 AU from the star. κ Tauri is a white A-type main sequence star with an apparent magnitude of +5.24.
Between the two bright stars is a binary star made up of two 9th magnitude stars, Kappa Tauri C and Kappa Tauri D, which are 5.5 arcseconds from each other (as of 2013) and 175.1 arcseconds from κ Tau. Two more 12th magnitude companions fill out the visual group: Kappa Tauri