M 9

  • Date: 19 July 2007
  • Exposure: 3.9 hours LRGB (20:54:54:108 min.)
  • FWHM:
  • Additional notes: Colour contributed by Bernhard Hubl
  • Telescope: 18” f/3.7 Newtonian + 4” Apo f/5.4
  • Mount: Heavy Forkmount
  • Camera: SBIG ST10-XME + ST2000-XME
  • Filters: Astronomik Typ II.c LRGB