Sunday, June 17, 2012

how to observe the planets of our solar system

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.
The brightness of a planet or other object in the sky is measured as its "magnitude." The lower an object's magnitude, the brighter it appears, so objects with negative signs in front of their magnitude numbers below are exceptionally bright.

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China sets a world record 370-day for human life on the moon

The Beijing University of Aviation and Cosmonautics completed a 370-day experiment to simulate the lives of people on the moon, settin...