NGC 3199 - Adam Lundie - Eatons Hill Observatory

NGC 3199

13-Feb-2016
NGC 3199 thumbnail
NGC 3199
NGC 3199 is a hydrogen emission nebula, about 12,000 light-years away. The nebula is about 75 light-years across with a Wolf-Rayet star generating an intense stellar wind in the center of its ring.

Image:

  • 5x 900s Ha bin2x2 + 12x flat + 50x dark + 120x bias
  • 13x 750s Ha bin2x2 + 30x flat + 50x dark + 120x bias
  • 15x 420s Lum bin2x2 + 30x flat + 50x dark + 120x bias
  • 6x 180s red bin3x3 + 42x flat + 50x dark + 120x bias
  • 4x 180s green bin3x3 + 42x flat + 50x dark + 120x bias
  • 20x 180s blue bin3x3 + 42x flat + 50x dark + 120x bias

Total exposure time: 6 hours 15 minutes.

Hardware:

  • Celestron EdgeHD 1100 with CGEM DX mount
  • Celestron 0.7x EdgeHD focal reducer
  • QSI 683-wsg Camera @ -15C
  • Astronomik Type 2c LRGB filters
  • Astronomik Ha 6nm filter
  • Orion StarShoot Autoguider
  • Starlight Xpress Adaptive Optics

Location:

  • Orange zone in Brisbane, Australia. (Bortle 7)

Software:

  • Captured with AstroArt 6
  • Guiding with PHD2 + PHD_Dither
  • Aladin 8.0: Planning & camera alignment.
  • CCDInspector: Image analysis & rejection
  • CCDStack 2+: Calibrate, align, normalize, stack, curves, combine RGB.
  • Photoshop CC: Integrate L+Ha+RGB / Ha+RGB, reduce noise, high pass filter, shadows/highlights, unsharp mask, shrink stars, color balance.

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