The Rosette Nebula is a large spherical region in the constellation Monoceros. It is around 5,200 light years from Earth.

TARGET
Nomenclature: NGC 2237, NGC 2238, NGC 2239, NGC 2246, Caldwell 49, Sh2-275, CTB 21
Right Ascension: 06:33:45
Declination: 04:59:54
Size: 80 arc min
Discovery: John Herschel

EQUIPMENT USED
APM TMB LZOS 152 refractor
10Micron GM2000 HPS mount
QSI6120 CCD camera
Astrodon filters

IMAGE CAPTURE
5nm Ha: 14x1800 bin 1x1
3nm OIII: 16x1800 bin 1x1
5nm SII: 10x1800 bin 1x1
Total integration: 20 hours
Pixel scale: 0.534 arcsec/pixel
Field radius: 0.375 degrees
Capture dates: 29 December2017 - 11 January 2018
Capture location:  Alcalali, Spain

IMAGE PROCESSING
Pre-processing: CCDStack2
Post-processing: Photoshop CS2