M 81    aka Bode's Galaxy

 

Distance from Earth:    About 12 million light years

Constellation:                 Ursa Major

Telescope: 12.5"RCOS

Camera :    STL11000M using off axis guiding 

Mount :           AP1200

Image date:   Mar 2008

 

   -- Filters used and total time--

Luminous   160 minutes

Red                45 minutes

Green            45 minutes

Blue               45 minutes

Ha                  

OIII

SII