If you have sunny skies .. you really should check this out;
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!" Just hours ago, Mark Vornhusen took this picture of the comet between clouds over Gais, Switzerland.
This weekend is a special time for Comet McNaught because it is passing close to the sun. Solar heat is causing the comet to vaporize furiously and brighten to daylight visibility. At magnitude -4 to -5, McNaught is the brightest comet since Ikeya-Seki in 1965. The secret to seeing McNaught in broad daylight: Get rid of the sun! Stand in the deep shadow of a building or billboard. Make a fist and hold it at arm's length. The comet is about one fist-width (5 degrees) east of the sun. Try it! (SOURCE)