SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids:
Comet McNaught is now visible in broad daylight. "It's fantastic," reports Wayne Winch of Bishop, California. "I put the sun behind a neighbor's house to block the glare and the comet popped right into view. You can even see the tail."
This trick is best performed around local noon: Go outside and stand in the shadow of a building. Face south. The comet lies 5 degrees to the left of the sun. (Five degrees is the width of your fist held at arm's length.)