Herschel 20 (North Up, East Left)
Herschel 20, also known as NGC 637, is an open cluster in the constellation of Cassiopeia.  It lies at a distance of ~6,900 light-years. This image comprises 15 x Luminance (15 seconds each) and 8 x Red, Green and Blue (15, 15 and 12 seconds each), 0.5m f/2.9 ASA Astrograph with FLI ML3200 camera at an altitude of 50 degrees on 26 August 2017. The field of view is 29' x 19'.
Hills Observatory: 1 January 2013 to 6 May 2018
COMETS COMETS
DEEP SKY DEEP SKY