Iota Coronae Borealis

It is visible to the naked eye with a combined apparent visual magnitude of is 4.96.

[2] Based upon an annual parallax shift of 10.46 mas as seen from the Earth,[1] it is located about 312 light years from the Sun.

This is a single-lined spectroscopic binary with an orbital period of 35.5 days and an eccentricity of 0.56.

[6] The visible member, component A, has a stellar classification of A0 IIIp(HgMnEu)s,[3] indicating it is a chemically peculiar mercury-manganese star with narrow absorption lines.

The secondary member, component B, appears to be an A-type star.