That should be Zeta1 Reticuli or Zeta2 Reticuli, Ziggy;
both stars are remarkably Sun-like, and are relatively close to Earth.
In the Orion's Arm universe Zeta1 Reticuli has a thriving human colony, but Zeta2 has something mysterious and terrible lurking there...
read the first two paragraphs of this page and you will find out who it is
http://www.orionsarm.com/tech/space_combat...at_sensors.html