NGC 6914 is just [a reflection nebula in Cyngus](https://i.imgur.com/P7R1lmn.jpg), although since this is a narrowband image, the reflection nebula don't show up as well compared to the emission nebulae surrounding it. Was just zooming around in stellarium looking for something cool to shoot while the moon was up and settled on this region. I also made a [starless version](https://i.imgur.com/E2vfQl9.jpg) to better show off the fainter nebulosity. Captured over 6 nights from November 10th to 19th, 2021 from a Bortle 6 zone.
**Places where I host my other images:**
[Instagram](https://www.instagram.com/leftysastrophotography/) | [Flickr](https://www.flickr.com/people/leftysastrophotography/)
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**[Equipment:](https://i.imgur.com/6T8QNsv.jpg)**
* TPO 6" F/4 Imaging Newtonian
* Orion Sirius EQ-G
* ZWO ASI1600MM-Pro
* Skywatcher Quattro Coma Corrector
* ZWO EFW 8x1.25"/31mm
* Astronomik LRGB+CLS Filters- 31mm
* Astrodon 31mm Ha 5nm, Oiii 3nm, Sii 5nm
* Agena 50mm Deluxe Straight-Through Guide Scope
* ZWO ASI-290mc for guiding
* Moonlite Autofocuser
**Acquisition:** 15 hours 54 minutes (Camera at Unity Gain, -15°C)
* Ha- 547360"
* Oiii- 52x360"
* Sii- 50x360"
* Darks- 30
* Flats- 30 per filter
**Capture Software:**
* Captured using [N.I.N.A.](https://nighttime-imaging.eu) and PHD2 for guiding and dithering.
**[PixInsight Processing:](https://www.youtube.com/watch?v=u7FuApFSGuA)**
* BatchPreProcessing
* StarAlignment
* [Blink](https://youtu.be/sJeuWZNWImE?t=40)
* ImageIntegration
* DrizzleIntegration (2x, Var β=1.5)
**Linear:**
* DynamicCrop
* DynamicBackgroundExtraction
* EZ Decon + Denoise (Ha only)
* STF applied via HistogramTransformaion to bring each channel nonlinear
**Combining Channels:**
* Pixelmath to make RGB image using /u/CrazyPanda741_'s palette:
> R= iif(Sii > .1, Sii, (Ha\*.7))
> G= iif(Ha > 0.7, 1-(1-Oiii)\*(1-(Ha-0.3)), Oiii \*(Ha+0.7))
> B= iif(Oiii > .1, Oiii, (Ha\*.3)+(Oiii\*.2))
**Nonlinear:**
* LRGBCombination with Ha as luminance
* Shitloads of CurveTransformations to adjust lightness, contrast, saturation, hues, etc.
* SCNR to partially remove greens
* Extract L channel > LRGBC again for chrominance noise reduction
* ACDNR
* ColorSaturation
* LocalHistogramEqualization
> two rounds of this, one at size 16 kernel for the finer ‘feathery’ details, and one at 200 for larger structures
* more curves
* DarkStructureEnhancement
* EZ Star reduction
* NoiseGenerator to add noise back into reduced stars
* Resample to 60%
* Annotation
lefty7283
