Moon Hits Bull's-Eye Tuesday in Vivid Aldebaran Crossing

The waning moon will cross in front of one of the brightest and most colorful stars in the sky on the night of October 18-19 for viewers in the southern and eastern United States, and part of eastern Canada. Late Tuesday night (Oct. 18), users of even the smallest telescopes will be glued to their eyepieces as the edge of the waning gibbous moon, 85 percent illuminated, occults the 1st-magnitude star Aldebaran, which forms the bright orange eye of Taurus, the Bull.