Where would I find the information needed to place those stars in Celestia? These are three red supergiants bigger in diameter than the Garnet Star.
They are KW Sagitarri, V354 Cephei and KY Cygni and all are within 10,000 light years from us.
http://www.space.com/scienceastronomy/aas_largest_stars_050110.html
Brendan