Nu Cancri

Nu Cancri is a binary star system in the zodiac constellation of Cancer. Its name is a Bayer designation that is Latinised from ν Cancri, and abbreviated Nu Cnc or ν Cnc. This star is faintly visible to the naked eye with an apparent visual magnitude of +5.46. Based upon an annual parallax shift of as seen from the Earth, the star is located roughly away from the Sun. It is drifting closer with a line of sight velocity of −16 km/s.
The binary nature of this system was announced in 1973. This is a single-lined spectroscopic binary system with an orbital period of 3.8 years and an eccentricity of 0.35. The primary, component A, is a white-hued A-type star with a stellar classification of A0 III. It is a magnetic Ap star with a field strength of, showing abundance peculiarities in strontium, chromium and mercury. This has been studied as a mercury-manganese star that has reached the end of its main sequence lifetime, although it has an unusually low abundance of mercury for a star of this type. The star has 2.8 times the mass of the Sun and is radiating 93 times the Sun's luminosity from its photosphere at an effective temperature of.