
1) Aldebaran or arcturus 2) Arcturus 3) Arcturus or Aldebaran 4) Arcturus, spectrally 5) Orange dwarf 6) Relatively cool heavenly body 7) Relatively cool sun
Found on
https://www.crosswordclues.com/clue/kstar

The KSTAR, or Korea Superconducting Tokamak Advanced Research is a magnetic fusion device being built at the National Fusion Research Institute in Daejon, South Korea. It is intended to study aspects of magnetic fusion energy which will be pertinent to the ITER fusion project as part of that country`s contribution to the ITER effort. The project ....
Found on
http://en.wikipedia.org/wiki/KSTAR
No exact match found.