During the early hours of the morning during May 2011 you can see four bright planets, Venus, Mercury, Mars and Jupiter, accompanied at the beginning and the ending of the month by the crescent Moon. The view is from the Southern Hemisphere at 6:00 am local time, roughly an hour before sunrise.
Look out any east-facing window about a half hour before sunrise. If you have a clear view of the horizon, you'll see Mercury, Venus, Mars and Jupiter clustered together in a patch of sky less than 10o wide. If you wanted to, you could hide them all behind your outstretched hand - but don't. The view is too good. The best morning is May 11th, when Venus and Jupiter converge to form a tight pair only ½° apart. (Now you can hide them using no more than one finger.) Venus and Jupiter are so bright you might think you've witnessed a double supernova beaming through the morning twilight. But, no, it's just the two brightest planets in our own solar system. Read more