NGC 2237 Rosette Nebula
NGC 2237 Rosette Nebula
On this image I tried a little different color palette than I usually do, HSS, which is Hydrogen as the Red channel, and Sulfur as the blue/green channels. It shows a nice stark contrast between the areas of Hydrogen here being red, while the white dust tends to contain a little bit of both Hydrogen and Sulfur to form a white tone. RGB stars are added to represent their true colors.
Equipment
Telescope: Celestron RASA 11 (620mm focal @ f/2.2)
Filters: Baader Ultra-Highspeed F/2 3.5nm & 4nm Filters.
Main Camera: ZWO ASI 1600mm-pro Monochrome
Mount: Skywatcher EQ6r-Pro
Guide Scope: William Optics 50mm Uniguide
Guide Camera: ZWO ASI 290mm-mini
Location
Location: Pendleton, Oregon
Observatory: NexDome 2.4m Automated
Bortle: 3
Long & Lat: 45.67N, -118.79 W
Shoot Parameters
Date: January 21, 2022
Hydrogen Alpha: 99 x 60 seconds
Sulfur-II: 96 x 60 seconds
Red: 44 x 10 seconds
Green: 45 x 10 seconds
Blue: 50 x 10 seconds
Calibration Bias: 20
Calibration Dark: 20
Calibration Flats: 30
Integration Time: ~4.3 hours total
Gain: 139 (unity)
Cooling: -20
Processing Software: Astro Pixel Processor, StarXTerminator, NINA
