Thursday, August 13, 2009

Comet @ 6:59 AM

"Comet" word firstly from Greece. Aster star with long hair. Comet is a Small Solar System Body that orbits the Sun.
There are 2 kinds of comet's tail, as a gas (straight) and as dust (curve). When the comet is near sun, comet is bigger and can reach Jupiter's size, the length is 150 million km. Tail's direction always get far from the sun. Before sun rise, comet's tail direction is to the west and after sun set, comet's tail direction is to the east. This caused because there's solar wind, composed from:proton, electron, soft molecules, and solar radiation. Comet has 3 kinds, oval, hyper ball, para ball.

Labels: Natural Science