COMET LINEAR: Newly-discovered comet C/2000 WM1 (LINEAR) might become a naked-eye object before Christmas 2001. This latest "Comet LINEAR" -- not to be confused with Comet LINEAR (S4) that disintegrated months ago -- is now a dim 17th magnitude speck in the constellation Cassiopeia. Its brightness could climb to 4th magnitude late next year when it passes 0.33 AU from Earth. [ephemeris][3D orbit]