Kohoutek 4-55 (K 4-55, PN G084.2+01.0, PK 084+01.1) Planetary Nebula in Cygnus. Taken over several
nights in Sept 2012. 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 minutes binned 1x1, while the RGB
subframes were 4 minutes binned 2x2 resulting in the following total exposures (OIII+HA):(R+Ha):
(G+OIII): (B+OIII) (min) = (210+345): (44+345): (44+210):(44+210). Captured with Nebulosity,
calibrated, sigma combined in Iris with other processing using PixInsight LE and Photoshop CS.
North is up.