The Soul Nebula – Westerhout 5

Westerhout 5 (Sharpless 2-199, LBN 667, Soul Nebula) is an emission nebula located in Cassiopeia. Several small open clusters are embedded in the nebula: CR 34, 632, and 634 (in the head) and IC 1848 (in the body). The object is more commonly called by the cluster designation IC 1848.

Image:

Equipment/Software:

  • Modified Nikon D90
  • Sky-Watcher Star Adventurer
  • Sky-Watcher Tripod
  • Sigma 500mm F4 with Lens Collar
  • Intervalometer
  • Bahintov Mask
  • Intervalomter
  • DIY lens hood
  • Pixinsight
  • Sharpcap
  • All Sky Plate Solver
  • Stellarium

Acquisition:

  • ISO 1600, 500mm, F/4.0
  • 91 x 2″ lights
  • 50 Flats
  • 200 Bias
  • 50 Darks

Processing:

  • Manually Stacked in Pixinsight
  • Color Calibration
  • Split into LRGB channels
  • DBE on all channels
  • Deconvolution and John Rista Denoise on all channels
  • RGB channel combine
  • Color Calibration
  • Masked Strech
  • Starnet on Stride 64, used pixelmath to create an image with just stars
  • ArcsinH strech on starless image
  • Curves on starless image
  • Combined with Star image
  • L combined with RGB image
  • Star Reduction

Annotated Image:

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