Abell 39 Astrobin Image Of The Day 13 May 2019 Published in Astronomy Now Magazine July 2019
A low surface brightness planetary nebula in the constellation Hercules. It is rare in that it is perfectly spherical. It is estimated to be about 6,800 light years from Earth, and 4,600 light years above the galactic plane.
TARGET Nomenclature: Abell 39 Right Ascension: 16:27:33.71 Declination: +27:54:33.5 Size: 2.5 arc min Discovery:George Abell around 1955
EQUIPMENT USED Twin APM TMB LZOS 152 refractors 10Micron GM2000 HPS mount Twin QSI6120 CCD cameras Astrodon filters
IMAGE CAPTURE OIII 3nm: 74x900 bin 1x1 Luminance: 70x600 bin 1x1 Red: 25x300 bin 1x1 Green: 24x300 bin 1x1 Blue: 20x300 bin 1x1 Total integration: 35 hours 55 minutes Pixel scale: 0.531 arcsec/pixel Field radius: 0.247 degrees Capture dates: 27 February - 16 March 2023 Capture location: Fregenal de la Sierra, Spain