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Archive for January, 2011

links for 2011-01-30

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links for 2011-01-24

  • Data produced by telescopes are gray-scale images obtained through colored filters. Processing the images requires the elimination of "unwanted signatures of the instrument" or extraneous data in the image that actually isn't in the sky — it comes from either electricity or the telescope itself. Images are then combined to increase detail or range of view, and finally the images are "colorized" consistently with the filter that used when the image was taken.

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