Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  69 UMa)  ·  Kaffa (δ UMa  ·  The star 68 UMa  ·  The star 70 UMa  ·  The star 71 UMa  ·  The star 74 UMa  ·  The star 75 UMa  ·  The star Megrez
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M40 (The Best Messier Object) in HαRGB, Brent Newton
M40 (The Best Messier Object) in HαRGB
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M40 (The Best Messier Object) in HαRGB

Getting plate-solving status, please wait...
M40 (The Best Messier Object) in HαRGB, Brent Newton
M40 (The Best Messier Object) in HαRGB
Powered byPixInsight

M40 (The Best Messier Object) in HαRGB

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Description

Yes, I wasted pretty much all of the clear skies I had this Spring shooting this instead of the Virgo cluster or Abell 2199. Would have added in Oiii but the Moon and the clouds never seemed to agree on their timing. 

Pre-processing:
 - Flats, Flat Darks calibration
 - Subframe Weighing, Star Align, Local Norm
 - Image Intergation

Housekeeping:
 - Crop
 - DBE
 - LFit R, B to G
 - RGB Channel Combine

Hα:
 - StarNet
 - Rista method TGVD, MMT
 - Signal isolated from R continuum

RGB:
 - ImageSolver + SPCC
 - StarX
 - Hydrogen applied to R, B channels
 - Rista method TGVD, MMT
 - GHS (Starless), ArcSinH (Stars)
 - Star PixelMath Screen blend, Bill's Star Reduction

 - Curves tweaks for Vibrance

Comments

Revisions

  • M40 (The Best Messier Object) in HαRGB, Brent Newton
    Original
  • M40 (The Best Messier Object) in HαRGB, Brent Newton
    C
  • M40 (The Best Messier Object) in HαRGB, Brent Newton
    D

C

Description: Annotated

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D

Description: Background Galaxies

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M40 (The Best Messier Object) in HαRGB, Brent Newton

In these collections

DSO