Friday, October 9, 2009

Saturn's new ring


For those of us who are interested in astronomy, it was reported by NASA that The Spitzer Telescope has recently discovered the largest ring around Saturn, at the far edges of it's planetary system.(about 5,95 million kilometres from the planet).

The ring, consisting of a combination of ice and dust particles, has not been visible to other telescopes as it is diffused and does not reflect enough visible ligh. The Spitzer, however, views the universe in infared and because the ring glows with thermal radiation, this telepscope was able to detect it. It is estimated this ring has a width of some 11,9 million kilometres. It is so huge, that it would be able to accomodate 1 billion Earths.

Up until now, only seven major rings were known, imaginately name A-E. In addition there are a number of fainter rings.
One of Saturn's moons, Phoebe, orbits within this new rings and orbits the same direction as the ring. This is the opposite direction to the other rings and most of Saturn's other moons, including Iaptus.


Further information is that The Spitzer Telescope was launched in 2003 and orbits around the Sun. It is currently some 106,2 million kilometres from Earth.

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