Cicada sector

The Cicada sector, also known as Sector 4423, is a sector of space in the galaxy's Alpha or Beta Quadrants. It was rumored to be a region where starships would disappear, never to be heard from again.

This sector was named after cicadas, a type of Earth insect. 

History
In the early 22nd century, the sector was charted by the Federation, but only partially explored. It has not been regularly visited.

In the 2260s, James T. Kirk was familiar with rumors associated with the sector.

In 2269, researchers at the Starfleet Science Center on Rifton compiled sets of data recently received from the Klingon Empire and Romulan Star Empire regarding this sector. 

Records revealed that one ship was lost in the sector every 27.344 star years: c. 2133, c. 2160, c. 2187, 2215, and 2242. 

Shortly before the next predicted event in 2269, the USS Enterprise (NCC-1701) was passing close to the sector while escorting a convoy of ore freighters. The starship was assigned to enter the sector and investigate. 


 * The sector was named in the novelization.

Systems

 * Taurean system

Species

 * Taurean