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Lagoon Nebula

I've become a bit sick of narrowband and was graced with a good clear moonless night to try image a milky way core season target in LRGB. I believe this is my first LRGB that isn't a galaxy, and wow does SNR come easy on this target. 2.5hrs of Lum and 2.5hrs of RGB seems almost sufficient. Unfortunately the target sets into my light polluted west before the night is out so I didn't get as much data as I hoped for. Another concern is the framing, I was a bit hesitant and lazy to rotate the camera 90degrees to improve it as it affect my dec balance and ruin flats for other WIPs. Maybe I need a rotator... I considered doing a mosaic but I remebered the pains of processing one in PI.

Acquisition Details:

Scope: GSO 8" F/4, flocked, 2" moonlite, DIY AutoFocuser, DIY Secondary Dew Heater Coma Corrector: SkyWatcher Aplanatic/Quattro Camera: ZWO ASI 1600MMC PRO (Image scale ~1"/pixel) Mount: EQ6-R Guide Scope: ZWO 60mm Guide Cam: QHY5LIIC 75x120s L (ZWO) 24x120s R (ZWO) 26x120s G (ZWO) 26x120s B (ZWO) Roughly 5 hr total integration. All at gain 0, 21 offset, -15 degrees celsius. Acquired with the NINA imaging suite. Guided with PHD2. Mount interface: EQMOD

Processing Details:

Pre-Processing: All Lights flat and dark calibrated. SFS/Star Aligned/Image Integration Luminance Processing: Crop, DBE, Decon, TGV Denoise HT Stretch Several rounds of LHE with ranged masks RGB Processing: Crop, DBE, Linear Fit, RGB COMB masked stretch then HT Stretch Another round of DBE, then HSV repair (fix some star cores) Star reduction Contrast and saturation curves with ranged mask.
Date Created: 2019-07-27
Date Posted: 2019-07-30