memory alpha

The Secarus system was a planetary system.

This sytem had at least four planets, including Secarus IV, which was the location of the Albino's compound until his defeat in 2370. (DS9: "Blood Oath")

According to the script, Secarus was pronounced as "sec-A-rus". [1]
According to StarTrek.com, the system's primary was named Secarus. [2](X)