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lefty7283

IC 4665

  • 1 session
  • 51 images
  • 1.28 hours

Details

Pretty happy with the results for the short integration time. One of the best things about shooting clusters! Captured on July 23rd, 2022 from my Bortle 6 driveway.

**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/ejpKkwU.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-120mc for guiding

* Moonlite Autofocuser

**Acquisition:** 55 minutes (Camera at Unity Gain, -15°C)

* Lum- 15x90"

* Red- 9x90"

* Green- 7x90"

* Blue- 6x90"

* 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=E6vj_SEZ79k)**

* BatchPreProcessing

* StarAlignment

* [Blink](https://youtu.be/sJeuWZNWImE?t=40)

* ImageIntegration

**Linear:**

* DynamicCrop

* Dynamic Background extraction

**RGB:**

* ChannelCombination to map monochrome R, G, and B images into a color image

* PhotometricColorCalibration

* Slight SCNR green

* MultiscaleLinearTransform for large scale chrominance noise reduction (around layer 12 I think) 

* HSV repair

* ArcsinhStretch + HistogramTransformation to bring nonlinear

**Luminance:**

* NoiseXTerminator

* ArcsinhStretch + HistogramTransformation to bring nonlinear

**Nonlinear:**

* LRGBCombination with stretched L as luminance

* Several curves transformations to adjust lightness, contrast, saturation, etc

* SCNR green

* MLT again for smaller scale chrominance noise reduction

* Invert > SCNR > Invert with star mask to remove magentas from some stars

* Another round of NoiseX

* More Curves 

* Annotation

Sessions

Date L R G B
2022-06-24 0.6 0.25 0.23 0.2
Total 0.6 0.25 0.23 0.2

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