OBJECT M27 - NGC 6863 (Dumbbell Nebula)       (image above is reduced-size crop | other sizes:  medium , original)

Distance:  1,360 light years

Telescope Takahashi TOA-130F @ f/7.7
Mount Takahashi EM200 Temma II
Camera QSI 540wsg @ 0C  --- almost 90F ambient! :(
Filters Astrodon Ha 3nm, Astrodon Tru-Balance I-Series LRGB Gen 2
Guider SX Lodestar
Settings 3x5min Ha (bin1x1); 5x5min L (bin1x1); 2x2.5min ea RGB (bin2x2); AstroArt5, PS7 (slightly cropped, 10 darks, no flats)

26 June 2012 - Las Cruces, NM  (data reprocessed on 26 May 13)

Published as Astronomy Magazine Picture of the Day, 9 Dec 13 (screenshot).

Copyright  Jeffrey O. Johnson

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