NGC 6888 (Crescent Nebula)

NGC 6888 (Crescent Nebula)_original

HOO image (original)

 

NGC 6888 (Crescent Nebula)_cropped

HOO image (cropped)

 

Target Information

  • ALTERNATIVE DESIGNATION(S):  Sharpless 105, Caldwell 27
  • TYPE:  emission nebula
  • CONSTELLATION:  Cygnus
  • DISTANCE:  ~5,000 light years

Imaging Information

  • IMAGING DATE(S):  July 2010, August 2012
  • Hydrogen alpha:  15 min subs x 15, Bin 1×1
  • OIII:  20 min subs x 15, Bin 1×1
  • TOTAL EXPOSURE TIME:  525 mins = 8.8 hrs

Equipment

  • TELESCOPE:  Takahashi TOA-130F
  • MOUNT:  Software Bisque Paramount ME
  • CAMERA:  SBIG STL-11000XM
  • GUIDING:  TC-237 (internal autoguide chip)
  • FILTERS:  Astrodon
  • IMAGE ACQUISITION SOFTWARE:  TheSkyX, CCDSoft, CCDAP, FocusMax
  • PROCESSING SOFTWARE:  PixInsight, StarTools