Tuesday, January 27, 2009

How Solar Eclipses Occur

Picture:Solar Eclispe(Credit Picture to: http://www.squidoo.com)

Yesterday 26th January 2009, one of great power that come only come from the Almighty(Allah S.W.T).It happen and can seen at several place Sumatra, Borneo or southern India and several place in Malaysia.
I was at Labuan,Malaysia can see it trough my camera.Here I will share with you all how the solar eclipse happen.
A solar eclipse occurs when the moon's path takes it between the earth and the sun thus forming a shadow over part of the earth below. This happens only during a new moon when the sun and moon are in conjunction as observed from earth. A shadow is cast behind the moon consisting of a dark inner shadow known as the umbra and a fainter outer shadow known as the penumbra. When a part of the earth falls into the dark shadow a total eclipse is observed at that location. Areas shaded in the penumbra see a partial eclipse.

A solar eclipse does not happen at every new moon as the moon's orbit is not in perfect alignment between earth and the sun. Its orbit is at an angle of about 5% relative to the earth's orbit around the sun. This means the moon's shadow usually passes above or below the earth at new moon time. The moon's orbit around the earth is elliptical so its apparent size varies. Sometimes the moon will appear to cover the sun's disk completely (known as a total eclipse) this leaves only the sun's corona visible. At other times the moon does not appear quite large enough to completely obscure the sun so it leaves a ring of sunlight visible around the moon. This particular type is known as an Annular eclipse.


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