IC 2944 in Narrowband SHO! My first image with the ASI-1600mmc pro, and my first with narrowband imaging. Hopefully someone here can give me tips towards my processing. The halo on the star is due the OIII filter and I need to investigate if I put it in the wrong way. The stars are also slightly trailing upwards due to flexure in the system which will hopefully be fixed in the next image.

Acquisition Details:

Scope: GSO 8" F/4, flocked, 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 44x300s Ha (ZWO 7nm) 40x300s OIII (ZWO 7nm) 41x300s SII (ZWO 7nm) Roughly 10.4hr total integration. All at unity gain, 21 offset, -15 degrees celsius. Acquired with the NINA imaging suite. Guided with PHD2. Mount interface: EQMOD

Processing Details:

Flat & Dark Calibration SFS/Registration/integration TGV of SII and OIII Masked stretch and minor HT tweaks on each integration Linear fitted to Ha RGB Combination (SHO) Invert, SCNR on green invert to get rid of magenta tones Hue Curve to shift the green to blue (Not true hubble) More SCNR Star Reduction LHE with range mask Minor tweaks with saturation and contrast curves
Date Created: 2019-02-08
Date Posted: 2019-05-06