North American Nebula – NGC7000
North American Mosaic
This is a large mosaic of NGC7000 that was done in a 2×2 framing and then stacked in Astro Pixel Processor to stitch together. The data is very low at this point, with only a dozen subs in each quadrant across narrowband filters Ha, Oiii, Sii. The experiement is to see how well the multi-band blending is working and if coordinates and framing are on at this stage before spending more time on target for fainter detail, but turning out pretty good so far.
Equipment
Telescope: Meade 6000 series 70mm Quadruplet @ f/5
Main Camera: ZWO ASI 1600mm-pro Monochrome
Mount: Skywatcher EQ6r-Pro
Guide Scope: William Optics 50mm Uniguide
Guide Camera: ZWO ASI 290mm-mini
Computer: ASIair PRO
Location
Location: Pendleton, Oregon
Bortle: 4
Long & Lat: 45.67N, 118.79 W
Shoot Parameters
Ha Filter: 44×300″
Oiii Filter: 12×300″ & 20×180″
Sii Filter: 12×300″ & 20×180″
Light Filter: none
Calibration Bias: 20
Calibration Dark: 20
Calibration Flat: 20
Integration Time: ~7.3 hours total
Gain: 139 (unity)
Cooling: -20
Processing Software: Photoshop CC, Astro Pixel Processor, StarNet++, ASIair PRO Planning
