Epsilon Persei [SEP] constellation
Epsilon Persei
Epsilon Persei (ε Persei, ε Per) is a multiple star system in the northern constellation of Perseus. It has a combined apparent visual magnitude of +2.88, which is bright enough to be viewed with the naked eye. Based upon parallax measurements, this system is located at a distance of roughly 640 light-years (196 parsecs) from Earth.
This is a spectroscopic binary system, which means that the presence of an orbiting companion has been revealed by radial velocity variations in the spectrum
and it is now so included in the List of IAU-approved Star Names.
In Chinese, (), meaning "Rolled Tongue", refers to an asterism consisting of Omicron Persei, Nu Persei, Epsilon Persei, Xi Persei, Zeta Persei and 40 Persei. Consequently, the Chinese name for Omicron Persei itself is (), "the Fifth Star of Rolled Tongue".
Nomenclature Namesake.
USS "Atik" was a ship of the United States Navy.
Properties.
Omicron Persei A is