Valivarre is a cool star, measured as class M-7. Density and surface temperature indicate that this is a very old star. Estimates place its age very near to the theoretical age of the universe (13.5 billion years, approximately). No other star has achieved such an age without first collapsing into a dwarf or a quantum singularity (black hole). Its longevity is unexplainable.

The outer regions of Valivarre are unstable, suggesting that its hydrogen supply is nearly exhausted. Conservative estimates place shell collapse sometime before the end of this century. At that time, Valivarre will begin its period of migration from mature star to red giant.

Before the mysterious disappearance of the Tholian Hegemony, this system (located deep within Tholian space) was a site unseen by any humanoid eyes. All life forms were prohibited from traveling anywhere near this sector by the old Tholian border provisions. This star was only recently discovered by Klingon scouts who were convinced that the Tholians were testing ancient technologies nearby.

Still, Valivarre remains well inside of a once forbidden zone of space. Very little is known abut this system. The Klingon government has not released all of its records on the sector, and the recent visits by Romulan vessels has only produced public confirmation that Valivarre exists.