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