This was a secondary target to M87 the other night, as it had gone behind a building. I'm really pleased with the detail I got in the Trifid, given the less than 2 hours of exposure from my light polluted apartment. It's a lot better than [the clusterfuck I imaged over a year and a half ago](
https://www.reddit.com/r/astrophotography/comments/6zxg98/m20_the_trifid_nebula/) filled with coma and collimation issues. Captured on the morning of April 11th, 2019 from a bortle 7 zone.
**Equipment:**
* 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 H-alpha 5nm 31mm
* Agena 50mm Deluxe Straight-Through Guide Scope
* ZWO ASI-120MC for guiding
* Moonlite Autofocuser
**Acquisition:** 01 hour 54 minutes (Camera at Unity Gain, -20°C)
* CLS- 33x120"
* Red- 16x60"
* Green- 15x60"
* Blue- 17x60"
* Darks- 30
* Flats- 30 per filter
**Capture Software:**
* EQMod mount control. Captured using [N.I.N.A.](
https://nighttime-imaging.eu/) and PHD2 for guiding and dithering.
**[PixInsight Processing](
https://i.imgur.com/BUHbnoq.png):**
* BatchPreProcessing
* StarAlignment
* [Blink](
https://www.youtube.com/watch?v=sJeuWZNWImE&feature=youtu.be&t=40)
* ImageIntegration
* DynamicCrop
* AutomaticBackgroundExtraction
* **Luminance:**
* TVG/MMT Noise Reduction
* HistogramTransformation
* **RGB:**
* LinearFit to Green
* ChannelCombination
* PhotometricColorCalibration
* SCNR
* HSV Repair
* ArcsinhStretch
* HistogramTransformation
* LRGBCombination with Luminance
* [Curve](
https://i.imgur.com/8zxcl4k.jpg)Transformations
* ACDNR
* MorphologicalTransformation
* DarkstructureEnhance
* Annotation
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