M 4 in Scorpius

Updated : 7 August 2006.

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m4_30-sgclpflatRGB_DDP_SZ_Sat_IP_PS.jpg (1200 kB)

  • CCD : ST10 NABG
  • Exposure time : 30:30:30 RGB min (5 min individual images 1x1 binned)
  • Date and Time : 20. June 2006
  • Instrument : 35cm @ f/5 (C14)
  • Focal length : 1800 mm
  • FWHM : about 3 arcsec
  • Filters : SBIG RGB filters
  • Image processing : Imageplus (DDP, Saturation, Star size) and Photoshop (Levels, curves)
  • Problems/comments : Imaged at IAS observatory, Farm Hakos, Namibia.

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