NGC 6888 in Cygnus

Updated : 3 August 2006.

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NGC6888_OIIIHaRGBKarel_josch.jpg (5500 kB)

  • CCD : STL11000 ABG
  • Exposure time : 22h (combined image from my Ha-OIII and Karel Teuwens Ha-LRGB)
  • Date and Time : June-July 2006
  • Instrument : 40cm @ f/8
  • Focal length : 3260 mm
  • FWHM : about 3 arcsec
  • Filters : Astronomik H-alpha (14nm and 6nm), OIII (13nm) and SBIG LRGB filters
  • Image processing : Photoshop
  • Problems/comments : Automated imaging with CCDCommander at my backyard, Mol, Belgium and with the same equipment in Turnhout, Belgium by Karel Teuwen

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