Comet 2006 P/1 McNaught has brightened rapidly over the last few days. It's now bright, beautiful, and easy to see at dawn and dusk ? as long as you know exactly where to look and have an unobstructed horizon and perfect conditions. For most observers in the United States, the comet is quite close to the horizon at twilight, where even the slightest wisp of cloud can hide it. The geometry is more favorable for observers in northern Europe and Canada, who report Comet McNaught as an easy naked-eye object. In the Southern Hemisphere, the comet is below the horizon all night long