Abell 56 (PN A66 56, PK 037.9-03.4, PN G037.9-03.4) planetary nebula in Aquila. Taken July 02, 03,
06, 08, 09 and 20 2011. Imaged with CCD Lab’s Q285M camera and a Celestron EdgeHD 9.25 at f10, on a
Losmandy G11/Gemini mount. The OIII and H-alpha subframes were 15 and 20 minutes binned 1x1,
while the RGB subframes were 4 minutes binned 2x2 resulting in the following total exposures
L:R:G:B = (HA):(R+Ha): (G+OIII): (B+OIII) (min) = (445): (60+445): (60+80):(60+80). Captured
with Nebulosity, calibrated, sigma combined in Iris with other processing using PixInsight LE
and Photoshop CS. North is up.