The annual Geminid meteor shower, which peaks the night of December 14/15, is typically one of the best of the year. Occurring less than a month after the Leonids, the Geminid shower generally features brighter meteors. In 2007, the Moon will be a waxing crescent setting in midevening, so its light will have little effect on viewing. The Geminids are so named because, if you trace all the meteor trails backward, they would meet within the boundaries of the constellation Gemini the Twins. This point, called the radiant, lies approximately 3° northwest of the 1st-magnitude star Castor.