Tau CrB has a visible companion of visual magnitude 13.2 and they have been treated as a common proper motion pair.
[3] Based upon an annual parallax shift of 27.95 mas as seen from Earth,[1] it is located about 117 light years from the Sun.
At that distance, the visual magnitude of the system is diminished by an extinction factor of 0.04 due to interstellar dust.
It is catalogued as a red clump giant, which would indicate it is generating energy through helium fusion at its core.
[11] The star has expanded to six times the Sun's radius and is radiating 16 times the solar luminosity from its photosphere at an effective temperature of 4,742 K.[5] Works related to Tau Coronae Borealis at Wikisource