Herschel 381 and Arp 135 (North Up, East Left)
Hersche 381, also known as Arp 135, actually comprises two objects, NGC 1023 - a galaxy of type SB(rs)0, and NGC 1023A - the small irregular galaxy to the east of the main galaxy, in the constellation of Perseus. The diameter of NGC 1023 is ~85,000 light-years. This image comprises 9 x Luminance (60 seconds each) and 7 x Red, Green and Blue (60, 60 and 48 seconds each), 0.5m f/2.9 ASA Astrograph with FLI ML3200 camera at an altitude of 70 degrees over two nights, 31 December 2016 and 22 January 2017. The fields of view of the images at the top and bottom are 32’ x21 and 18’ x 12’ respectively.
Hills Observatory: 1 January 2013 to 26 May 2020