Arp 242 British Astronomical Association Picture Of The Week 1 May 2021
ARP 242 - The Mice Galaxies - is a pair of interacting galaxies in the constellation of Coma Berenices about 300 light-years from Earth. They were discovered by William Herschel on March 13, 1785 giving them designation NGC 4676. The northern galaxy is IC 819 and the southern IC 820. I'm intrigued at how the night sky must appear when viewed from within one of these galaxies, with two "milky ways" crossing the sky.
TARGET Nomenclature: Arp 242, NGC 4676, IC 819, IC 820 Right Ascension: 12:46:10 Declination: 30:43:35 Discovery: William Herschel on March 13, 1785
EQUIPMENT USED APM TMB LZOS 152 refractor 10Micron GM2000 HPS mount QSI6120 CCD camera Astrodon filters
IMAGE CAPTURE Luminance: 51x300 bin 1x1 Red: 11x300 bin 1x1 Green: 11x300 bin 1x1 Blue: 11x300 bin 1x1 Total integration: 7 hours Pixel scale: 0.265 arcsec/pixel Field radius: 0.091 degrees Capture dates: 17-18 April 2021 Capture location: Fregenal de la Sierra, Spain