I agree it is Kaleidoscope. There are two basic ways to do it, the easier way is to make the central hex shape into a square by putting on corners to make it a square. Is just alternating blocks at the basic level!
From my first book of quilting and the first way I did it was the Ruby McKim version -- this one I've also seen with "rocket" names.
http://vintagecraftsandmore.com/vtns...quilt-pattern/