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Addition, level adjustment and sharpen

>> RegiStaxhttp://registax.astronomy.net
>> Giottohttp://www.videoastronomy.or
>> Astro Stackhttp://www.astrostack.com


Planetarium, Simulations

>> Cartes du Ciel (CLC) (phantastic map of the stars)
>> Planets (www.cpac.org.uk)
>> Virtual moon atlas

export AVI files to Bitmap files

>> Avi2bmphttp://www.divx-digest.com