Celestial hemisphere:  Northern  ·  Constellation: Perseus (Per)  ·  Contains:  40 Per  ·  40 o Per  ·  46 Per)  ·  46 ksi Per  ·  49 Per  ·  50 Per  ·  54 Per  ·  California Nebula  ·  HD22327  ·  HD22373  ·  HD22480  ·  HD22692  ·  HD22733  ·  HD22780  ·  HD22859  ·  HD22961  ·  HD22962  ·  HD23060  ·  HD23107  ·  HD23130  ·  HD23193  ·  HD23204  ·  HD23301  ·  HD23606  ·  HD23625  ·  HD23840  ·  HD23885  ·  HD23922  ·  HD23962  ·  HD24012  ·  And 887 more.
NGC1499 - The California Nebula, Steve Ludwig
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NGC1499 - The California Nebula

NGC1499 - The California Nebula, Steve Ludwig
Powered byPixInsight

NGC1499 - The California Nebula

Equipment

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Acquisition details

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Description

Equipment
  • Main camera: Nikon D3300 (unmodified)
  • Lens: Samyang 135mm f2 @ f2
  • Mount: Skywatcher EQ6-R Pro
  • Guide scope: Orion AC 50/162 Deluxe Mini
  • Guide camera: ZWO ASI 290MC


Acquisition
  • 148 lights x 150 s = 6 h 10 min
  • no dark, flat, bias frames
  • no filters
  • ISO 100
  • Bortle 5


Processing
  • lights stacked in DSS (median kappa sigma clipping method)
  • unmodified TIF opened in PixInsight
  • STF stretch
  • dynamic crop
  • dynamic background extraction
  • background neutralization
  • color calibration
  • histogram transformation
  • BlurXTerminator to reduce star size
  • starnet to separate background from stars background
  • stars: curves transformation to increase saturation
  • stars: inversion + SCNR green to remove purpelish stars
  • background: creation of light mask from red channel that covers the nebula
  • background: masked curves transformation to increase nebula saturation
  • background: masked curves transformation to decrease background saturation
  • pixel math to recombine background & stars
  • final curves & histogram transformations to adjust brightness and saturation
  • dynamic crop
  • saved as jpg

Comments

Sky plot

Sky plot

Histogram

NGC1499 - The California Nebula, Steve Ludwig