M 81

  • Date: Jannuary 2005
  • Exposure: 2.9 hours LRGB (100:23:22:28 min.)
  • FWHM:
  • Additional notes: first collaboration Heutz/Ries
  • Telescope: 12” f/6.0 Newtonian
  • Mount: Heavy Germanmount
  • Camera: StarlightXpress SXV-H9
  • Filters: Astronomik Typ II.c LRGB