N281 in Cassiopeia

Updated : 22 February 2005.

Click on image to get larger size (1200x800, automatic resize in Internet Explorer)
n281_60-135-60avflatSIIHaOIII213_DDP_IP_PS.jpg (1000 kB)

  • CCD : STL11000M ABG 1x1 binning
  • Exposure time : 60:135:60 min SIIHaOIII (15 min individual exposures)
  • Date and Time : 09. Sep. 2004
  • Instrument : 40cm @ f/3.3
  • Focal length : 1320 mm
  • FWHM :
  • Filters : Astronomik HA-SII-OIII filters
  • Image processing : sigma clip combine (ratio 2:1:3), darks, flat
  • Problems/comments : Further processing in Imageplus (DDP) and Photoshop. The imaging was done in my backyard, Mol, Belgium

back home