Orion's Sword - NGC1981, NGC1977, M43, & M42

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Image Data: Object Information:
  • Composite Exposure: 
    • 40x10s L, 10x1m R, 10x26.55s G, 10x33.45s B
    • 9x10m L, 6x10m R, 10x4.5m G, 10x5.75m B
    • Luminance binned 1x1
    • RGB binned 2x2
  • RGB Combine Ratios:  1.0:1.0:1.0
  • Telescope:  Stellarvue SV80S @ f/4.9
  • Mount:  Meade LX200 w/ super wedge
  • Camera:  SBIG ST-2000XM CCD, SBIG CFW-8
  • Location:  My backyard in Goleta, CA
  • Date/Time: 
    • November 25/26, 2003,  22:16-00:11 PST
    • December 26/27, 2003,  20:47-02:04 PST
  • Processing:  Taken and reduced in CCDSoft v5.  Combined sub-exposures with Ray Gralak's Sigma Clip.  DDP to Luminance and Color with custom software.  Color combined with custom software.  Composite/gradients removed/levels/saturation adjusted, Luminance applied, Unsharp Mask in Photoshop 8.

  • Notes:  Weather and the moon kept me from finishing this for a month.  I took the 10m red exposures in November and didn't notice until recording this that I took only 6 exposures.
  • Name: Orion's Sword
  • Includes these objects (from top to bottom):
    • NGC1981, NGC1977, M43, M42
  • Type:  Open Cluster, Reflection Nebula, and Emission Nebula
  • Constellation:  Orion

  • About M42
  • About M43
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