NGC 2392
Published in the April 2021 issue of Astronomy Now Magazine
NGC 2392, also known as The Eskimo nebula, the Clown-faced Nebula, the Lion Nebula, and Caldwell 39, is a tiny bipolar planetary nebula in the constellation Gemini. This was an experiment at capturing NGC 2392 during a full moon, using traditional CCD imaging rather than lucky imaging with CMOS cameras. This is the best that I can achieve on such a small target (46") with 6" aperture scopes.
TARGET
Nomenclature: NGC 2392, Eskimo Nebula, Clown-faced Nebula, Lion Nebula, Caldwell 39
Right Ascension: 07:29:10.77
Declination:  +20:54:42.49
Size: 46 arc sec
Discovery: William Herschel in 1787
EQUIPMENT USED
Twin APM TMB LZOS 152 refractors
10Micron GM2000 HPS mount
Twin QSI6120 CCD cameras
Astrodon filters
IMAGE CAPTURE
Blue: 33x120"
Green: 34x120"
Lum: 53x60"
Red: 59x120"
Ha: 36x120", 55x300" bin 1x1
OIII 59x120", 57x300" bin 1x1
Total Integration: 17.5 hours
Pixel scale: 0.267 arcsec/pixel
Field radius: 0.185 degrees
Capture dates: 1 - 6 December 2020
Capture location:  Fregenal de la Sierra, Spain

IMAGE PROCESSING
Pre-processing: CCDStack2
Post-processing: Photoshop CS2
Ha image
OIII image