Moulding Plane: The Plough

A second moulding plane marked with a changing pattern of stars, this time those comprising the asterism of The Plough (aka The Great Wain or Wagon, Charles's Wain, or The Big Dipper) - Dubhe, Merak, Phecda, Megrez, Alioth, Mizar (a double star with Alcor) and Alkaid. Again, the blue stars show how it looked to humans 50 millennia ago, the white stars how it looks now, and the red stars how it will look in 100 millennia.