The planets of our
solar system are on tomes some of the most rewarding and simplest sky watching
targets to spot, if you know when and where to look. Here's a look at how to
observe the planets of the solar system in 2011. Some have worlds of their own.
Astronomer’s measure
distances in the sky in terms of degrees. For reference, your clenched fist
held at arm's length covers about 10 degrees of the night sky.
