Herschel 360 and Caldwell 50 (North Up, East Left)
Hills Observatory: 1 January 2013 to 26 May 2020
Herschel 360 comprises two objects in the constellation of Monoceros. NGC 2237, also known as Caldwell 49, is an emission nebula with a diameter of ~65 light-years. It is ionized by the open cluster NGC2244, also , also known as aldwell 50, which contains ~100 stars and lies at a distance of ~5,200 light-years. It is ~3 million ears old. The first image comprises 10 x Luminance (60 seconds each) and 5 x Red, Green and Blue (90, 90 and 72 seconds each), 0.5m f/2.9 ASA Astrograph with FLI ML3200 camera at an altitude of 60 degrees on 27 January 2017.The field f view of the image is 34’ x 23’. The second image comprises 6 x Luminance (300 seconds each), 0.101m f/5.4 Tele Vue refractor with FLI ML16200 camera at an altitude of 65 degrees on 18 January 2018. The field of view is 132’ x 132’ (2.2 degrees square).