Omicron2 Cancri
Omicron2 Cancri is a solitary, yellow-white-hued star in the zodiac constellation of Cancer. Its name is a Bayer designation that is Latinized from ο2 Cancri, and abbreviated Omicron2 Cnc or ο2 Cnc. With an apparent visual magnitude of +5.67, it is dimly visible to the naked eye on a dark night. Based upon an annual parallax shift of as seen from Earth, this star is located around 150 light-years from the Sun. It most likely forms a co-moving pair with Omicron1 Cancri.
With a stellar classification of F0 IV, this presents as an F-type subgiant star that has left the main sequence and is evolving toward the giant stage. Other authors give it a spectral class of A7V and evolutionary models place it on the main sequence. It is estimated to be roughly 300 million years old with a relatively high rotation rate, as shown by a projected rotational velocity of around 90.5 km/s. With 1.72 times the mass of the Sun and 1.62 times the Sun's radius, it is radiating 10.3 times the solar luminosity from its photosphere at an effective temperature of.
The star has an infrared excess, suggesting it surrounded by a circumstellar debris disk. Modelling of this structure indicates there are three distinct components, consisting of belts orbiting at distances of about 20 AU, 80 AU and 270 AU from the central star. They are inclined at an angle of 64° to the line of sight along a position angle of 103°. The gaps between the belts are most likely maintained by orbiting planets.