Death Star
A detailed analysis to the aftermath of the Death Star explosion in "Return of the Jedi" by planetary scientist, Dave Minton, concludes all the Ewoks would have died as a result. Using the information provided from the holograms in the briefing scene aboard the giant cruiser "Home One" in Episode VI, Minton estimates the diameter of the Death Star (or "Death Star II" to distinguish it from the first Death Star in Episode IV: "A New Hope") is about three hundred and forty three kilometers or about seven percent the diameter of Endor.