you can click see inside and use them not the best but still a save of time they are now starballs! list of starballs red dwarf (the smallest one) orange dwarf (2nd smallest one) yellow dwarf (3rd smallest one also the type of star that is the same as the sun) blue dwarf (4th smallest one) red giant (5th smallest one) orange giant (6th smallest one) yellow giant (first on the top row) blue giant (the one with the tepiture stick) blue hypergiant (the biggest blue one) red hypergiant (the biggest one)
thanks to sceince for discovering these stars and the countryball and planetball community aswell
