this post was submitted on 09 Oct 2024
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Astrophotography

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We really struggled to combine RGB with Ha. For our first try at continuum subtraction however we are very pleased.

Equipment:

  • Samyang 135mm f2.0 lens
  • Fuji X-T5 (unmodified)
  • Star Adventurer 2i
  • STC duo narrowband filter

Images:

  • 288x 60s RGB
  • 592x 60s narrowband

Processing:

  • stacked in Siril
  • remove green noise
  • background extraction
  • star removal on both rgb and Ha
  • continuum subtraction with Pixelmath in Siril
  • adding Ha to RGB with Pixelmath
  • BlurXTerminator
  • NoiseXTerminator (0.5)
  • GHST
  • final editing and recomposition in Photoshop

Full resolution and more details: https://telescopius.com/pictures/view/202859/deep_sky/ngc-206/m31-andromeda/by-maxi_franzi

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