Tuesday, August 21, 2012

Leo Constellation

If you raise your eyes upwards in the sky along
the two indicator stars of the Great Bear constellation,you will see a sickle shaped bright constellation. To the east of this Constellation, three bright stars can be seen at the corners of the right angled triangle. This sickle and the triangle together form the Leo constellation.The brightest star in the Leo constellation is Regulus. At this time, a slanted cross on the southern side of the sky will be visible.This constellation is called the Southern
Cross.Two bright stars will be seen closer to the southern cross and east of it. Out of these, further away from the Southern cross is the Alpha Centauri. It is the brightest star of the Centaurus constellation sorrounding the Southern Cross. If this is examined with the telescope, it is
found to be made up of three stars.Out of the three stars the star closer to Earth is Proxima Centauri. It is the closest of the stars that are visible to the Earth.


Do you know?
The distance from the earth to the stars and the distance between stars is
measured in units called light years. A light year is, the distance that light travels in one year, which has a speed of 300000 kilometres per second.
That is 300000 x 60 x 60 x 24 x 365 kilometres.

Proxima Centauri is at a distance of 4.2 light years and Sirius is at a distance of 8.7 light years from the earth.

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