Abell 84 British Astronomical Association Image Of The Week 21 November 2020
Abell 84 is a faint planetary nebula in the constellation Cassiopeia. It is rarely imaged - I'm baffled as to why. This was an experiment to see how much structural detail I could tease out of this target as I couldn't find much in other online images. All data capture was done around full moon. I went deep to get good quality data despite the lunar presence and used drizzle x2 for the first time to increase image resolution.
TARGET Nomenclature: Abell 84 Right Ascension: 23:47:41 Declination: +51:23:54 Size: 146x116 arc sec Discovery: George Abell in 1955 EQUIPMENT USED Twin APM TMB LZOS 152 refractors 10Micron GM2000 HPS mount Twin QSI6120 CCD cameras Astrodon filters
IMAGE CAPTURE Blue: 7x300" Green: 8x300" Lum: 9x300" Red: 9x300" Ha: 127x900" bin 1x1 OIII 93x900" bin 1x1 Total Integration: 57.8 hours Pixel scale: 0.267 arcsec/pixel Field radius: 0.189 degrees Capture dates: 28 October - 4 November Capture location: Fregenal de la Sierra, Spain