Hello to everyone,

I’ve completed a test session on NGC 6888 using Optolong L-extreme filter and I’d like to request a technical evaluation/feedback of the final result. Total integration is 4.5 hours - 2 nights (180s subs, gain 120, offset 15, 0°C —- Maybe i can improve also the setting of camera), with about half of the data captured under an 83% Moon.

I’m mainly interested in general feedback (background quality, noise behavior and all…).

My setup is:

  • Tecnosky 72/432 FPL 53 with flattener 0.8X

  • Playerone Uranus-c PRO

  • ZWO am5n

  • Guide with miniguide 32mm/128mm with ASI 120 MC mono.

the link of the image —> First Crescent Nebula - NGC 6888 - AstroBin

My workflow on Siril has been:

  • crop

  • plate solve and SPCC

  • Background extraction with Graxpert

  • AberrationRemover

  • CosmicClarity sharpen

  • Starnet

  • Denoise with veralux silentum

  • Stretch transformation (hypermetric stretch by veralux i didn’t find a good compromise)

  • On StarMask NB_2_RGB

  • Star composer

Thank you so much for all the constructive criticism, feedback and advice.

Clear Sky

Max