NGC 6888

• Mode: AZ / EQ / Mosaic

• Filter: Dual-Band Astro Filter

• Lights:

  • Day 1: 241 x 90s (Gain 60)

  • Day 2: 249 x 90s (Gain 60)

Processing Workflow

1. Pre-processing & Initial Calibration (Siril)

• Stacked both mosaic panels separately using the Naztronomy script.

• Performed Astrometry and Photometric Color Calibration (PCC) on each individual panel.

• Background extraction on each panel using GraXpert.

2. Mosaic Assembly (PixInsight)

• Ran ImageSolver on both panels to ensure accurate coordinates.

• Used MosaicByCoordinates to align the frames.

• Merged the panels seamlessly using GradientMergeMosaic.

3. Enhancements (SetiAstroSuite Pro)

• Applied Cosmic Clarity for targeted sharpening and initial noise reduction.

4. Post-Processing & Final Touch (Siril)

• StarNet++ integration for star extraction to process the background independently.

• Applied Generalized Hyperbolic Stretch (GHS) to the starless background.

• Final pass of Cosmic Clarity Denoise for a cleaner background.

• Recomposed the stars back into the image using StarNet++.

Clear skies! Let me know if you have any questions about the workflow.