Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  56 Cyg  ·  57 Cyg  ·  60 Cyg  ·  62 ksi Cyg  ·  B352  ·  B353  ·  B355  ·  IC 5068  ·  IC 5070  ·  LBN 328  ·  LBN 332  ·  LBN 342  ·  LBN 343  ·  LBN 348  ·  LBN 349  ·  LBN 350  ·  LBN 353  ·  LBN 354  ·  LBN 356  ·  LBN 359  ·  LBN 363  ·  LBN 371  ·  LBN 373  ·  LBN 378  ·  LBN 384  ·  LBN 385  ·  LBN 387  ·  LDN 933  ·  LDN 935  ·  LDN 936  ·  And 13 more.
C20 - North America Nebula, Nicolas Eon
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C20 - North America Nebula

C20 - North America Nebula, Nicolas Eon
Powered byPixInsight

C20 - North America Nebula

Equipment

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Acquisition details

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Description

Synthetic SHO version of the North America Nebula...
  • Ha=RGB_R
  • Sii=RGB_L
  • Oiii=70% RGB_G + 30% RGB_B


I used  https://thecoldestnights.com/2020/06/pixinsight-dynamic-narrowband-combinations-with-pixelmath/ for the RGB Combination
  • R = (Oiii^~Oiii)*Sii + ~(Oiii^~Oiii)*Ha
  • G = ((Oiii*Ha)^~(Oiii*Ha))*Ha + ~((Oiii*Ha)^~(Oiii*Ha))*Oiii
  • B = Oiii

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