Messier 93 (North Up, East Left)
Messier 93, also known as NGC 2447 or the "Butterfly Cluster", is an open cluster containing ~80 stars in the constellation of Puppis. It has a diameter of ~23 light-years, lies at a distance of ~3,600 light years and is ~98 million years old. The first image comprises 9 x Luminance (12 seconds each) and 4 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 35 degrees on 13 December 2015. The field of view is 32’ x 20’. The second and third images comprise 6 x Luminance (300 seconds each), 0.101m f/5.4 Tele Vue refractor with FLI ML16200 camera at an altitude of 35 degrees on 17 January 2018. The fields of view of the images are 132’ x 132’ (2.2 degrees square) and 42' x 42', respectively.
Hills Observatory: 1 January 2013 to 26 May 2020