Messier 46 (North Up, East Left)
Messier 46, also known as NGC 2437, is an open cluster in the constellation of Puppis. It lies at a distance of ~3,200 light-years and is ~300 million years old. The planetary nebula NGC 2438 (and Herschel 392) is visible to the north of the cluster. The top image comprises 8 x Luminance (60 seconds each) and 4 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 40 degrees on 11 December 2015. The field of view of the image is 31’ x 20’. The middle and bottom images comprise 6 x Luminance (300 seconds each), 0.101m f/5.4 Tele Vue refractor with FLI ML16200 camera at an altitude of 40 degrees on 26 February 2017. The fields of view are 132’ x 132’ (2.2 degrees square) and 42’ x 42’, respectively.
Hills Observatory: 1 January 2013 to 26 May 2020