Beating light pollution Taken by Pál VÁRADI NAGY on December 28, 2013 @
My backyard in Kolozsvár city, RO.
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Using a Canon 1100D @ SW 150/750, EQ3 I pictured the M81-M82 pair. Left: raw exposure with overwhelming light pollution. Right: 37 minutes of these exposures stacked, processed with DSS, Iris and IrfanView.