NGC 246
NGC 246 is a planetary nebula in the constellation Cetus. It is accompanied by galaxy NGC 255 and dwarf galaxy PGC2689.
TARGET
Nomenclature: NGC 246, Skull Nebula, Caldwell 56
Right Ascension: 00:47:03
Declination:  -11:52:19
Size: 3.8 arc min
Discovery: William Herschel in 1785
EQUIPMENT USED
Twin APM TMB LZOS 152 refractors
10Micron GM2000 HPS mount
Twin QSI6120 CCD cameras
Astrodon filters
IMAGE CAPTURE
Astrodon Blue: 60x300" bin 1x1
Astrodon Green: 58x300" bin 1x1
Astrodon Lum: 85x300" bin 1x1
Astrodon Red: 61x300" bin 1x1
Total Integration: 22 hours
Pixel scale: 0.530 arcsec/pixel
Field radius: 0.460 degrees
Capture dates: 14-25 September 2020
Capture location:  Fregenal de la Sierra, Spain

IMAGE PROCESSING
Pre-processing: CCDStack2
Post-processing: Photoshop CS2