Caldwell 73 (North Up, East Left)
Calwell 73, also known as NGC 1851, is a globular cluster in the constellation of Columba.  It lies at a distance of ~35,000 light-years. This image comprises 12 x Luminance (30 seconds each) and 6 x Red, Green and Blue (45, 52 and 47 seconds each), 0.5m f/2.9 ASA Astrograph with FLI ML3200 camera at an altitude of 20 degrees on 25 January 2017. The fields of view of the images at the top and bottom are 34’ x 23’ and 18’ x 12’ respectively.
Hills Observatory: 1 January 2013 to 4 November 2018
COMETS COMETS
DEEP SKY DEEP SKY