Sh2-190 – Heart Nebula
Integration: 353 x 240 seconds (25 hours 32 minutes)
Moon Illumination: 100% to 73%
Seeing: Average to Good
Transparency: Average
NELM: Mag 2 to 4
Imaging: Askar V, Reducer 80mm (384mm), Ogma AP26CC (IMX571), Filters: Antlia Triband RGB Ultra II
Guiding: Skywatcher Evoguide 50DX, Player One Uranus C, Filter: UV-IR Cut
Mount: Skywatcher Wave 100i
Software: Green Swamp Server, ASCOM, NINA (Acquisition) and PHD2 (Guiding)
Integration: 353 x 240 seconds (25 hours 32 minutes), 15 Darks, 50 DarkFlats (Bias), 50 Flats
Processing: Stacked in Siril with OSC-Preprocessing script, processing, and Starnet++.
Work Flow:
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RGB Align
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Astrometry
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Background Extraction: Siril BG (RBF, 1.0, 80, 0.3, Dither ON), Siril Python Script, Graxpert (1.0)
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A. Starnet Star Removal
B. Starless: RGB Extract, L*A*B* extract
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Luminance: VeraLuxHMS, GraXpert Denoise (1.0), Curves, GraXpert Deconvolution (Object) (Strength 1.0, PSF 0.1)
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A. Extract Ha, Oiii and Sii with Pixel Math
B. Ha, Oiii, Sii: VeraLuxHMS, GraXpert Denoise (1.0), Curves, GraXpert Deconvolution (Object) (Strength 1.0, PSF 0.1)
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RGB Compose L, R = Ha, G and B = Oiii, R = Sii, Linear match and Level adjustment
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GraXpert Denoise (as required), GraXpert Deconvolution, PSF 0.1, Strength 1
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VeraLux Starcomposer, Crop
The RGB version can be seen here:
by ZigZagZebraz