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From the dramatic Horsehead Nebula to the mysterious glowing Bow of Orion, a series of unforgettable images have been entered into the Astronomy Photographer of the Year 2009 competition.

More than 500 photographs have been submitted from around the world. As well as professionals, many have come from dedicated amateurs and even a few true beginners using mobile phones.

Exposure time, which is the total amount of light allowed to fall on the photographic film or image sensor, varied from 20 minutes to more than 20 hours to achieve different effects.

Read more: http://www.dailymail.co.uk/sciencetech/article-1211764/Lost-space-Astronomy-photographers-capture-cosmic-masterpieces.html#ixzz0QWKR8pTq

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