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by Hon1nbo

1 Comment

  1. Can’t seem to get it to not blast the text in the preview so moving details to comment.

    Astrobin: [https://app.astrobin.com/i/qgz0p9](https://app.astrobin.com/i/qgz0p9)

    NGC 6888 The Crescent Nebula a.k.a. “The Brain”

    All imaging acquired in late October/Early November 2025 in Ha and Oiii filters

    Processed with Pixinsight

    Total integration time: 78h 20′

    |Filter|Exp #/time|Int Time|Date|
    |—|—|—|—|
    |Ha|164×600″|27h 20′|15 Oct|
    |Oiii|306×600″|51h|17 Oct|

    Preprocessing with WBPP w/ Linear Correction and 2x Drizzle

    Prior to RGB composition Star Masks were generated, and stars removed from stacks, using StarNet2

    HOO combined using PixelMath (reduced Ha for Red, normal Oiii for Green, boosted Oiii for Blue).

    Stretched using Arcsinh, followed by PixelMath again to blend in the Star Mask