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Michael Buechner | all galleries >> Galleries >> nebulae_and_clusters > M20 + M21
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18.08.2012

M20 + M21

La Palma

130mm f 6,3 StarFire EDF-GT (f=819mm), with AP-Flattener, ST8300M,guided with SX Lodestar, L=13x5min R=G=6x5min, B=5x10min;Image processing with CCDStack2, Adobe Photoshop CS4 SQM =21,6, Mean FWHM=3,5"


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