Tags: Star.
Mu1 Cancri (μ1 Cnc μ1 Cancri) is a red giant star approximately 561 light-years away from the Solar System in the constellation Cancer. The name Mu1 comes from the Bayer naming system: the 1 in the name is because (from Earth) it appears to be close to 10 Cancri (Mu² Cancri).Mu1 Cancri is a variable star and was also given the variable-star designation BL Cancri. It may be a Mira variable.