AP#28 : NGC 2237
Name: The "Rosette" nebula
Constellation:Monoceros
Instrument: 8-inch F5 reflector with a sky watcher coma corrector and a modified Nikon D3300
Exposure time: A mosaic of two stacks of 16 five-minute exposures at ISO 800.
Star Chart from Michael Vlasov's Deep sky hunter star atlas available on line https://www.deepskywatch.com/deep-sky-hunter-atlas.html
Magnitude: 9.0
Angular size: 1.3 degrees
This large nebula surrounds the open cluster NGC 2244. This is one of the winter's celestial showpieces. Because of its size it took two images merged together in a mosaic to produce this image. It can easily be photographed using medium focal length instruments (200-400 mm).
