M81 and M82 – Bode's and Cigar Galaxies
NELM: 2 (Antlia) to 3 (3nm HA-Oiii)
Moon Illuminated: 65 to 70%
Seeing: Below Average
Transparency: Below Average
Imaging: Askar V, Reducer 80mm (384mm), Ogma AP26CC (IMX571), Filters: Antlia Triband RGB Ultra II
Guiding: Ogma OAG, SV905C
Mount: Skywatcher Wave 100i
Software: Green Swamp Server, ASCOM, NINA (Acquisition) and PHD2 (Guiding)
Integration: Total 12 hours, Antlia Triband RGB Ultra ii 75 x 240 seconds (5 hours), SV220 3nm Ha-Oiii 105 x 240 seconds (7 hours), 15 Darks, 50 DarkFlats (Bias), 50 Flats
Processing: Siril for stacking, processing with, DBExtract, Starnet++ Starless, GraXpert Denoising, Deconvolution, VeraLux: HMS, Curves, Revela and Star Composer.
The broadband and 3nm dual band sets were stacked separately. Combined using manual stacked. Starnet++ was used to remove the stars
On the Starless layer, RGB extraction, DBXtract for Ha and Oiii were performed.
Ha-Oiii layer from DBXtract was used as Luminance to create a Ha-Oiii, RGB composite.
VeraLux HMS was used as a prestretch, followed by VeraLux curves (R, G, B). Minor black point adjustment with ASinH. The result was denoised with SyQon, deconvoluted with GraXpert followed by VeraLux Revela.
On the Starmask, NBtoRGB stars was executed followed by green noise removal and saturation adjustment.
The starless and the starmask were combined using VeraLux Starcomposed, saved as jpg for posting.
by ZigZagZebraz