M51  &  NGC 5195 RGB (Whirlpool Galaxy)

 Distance from Earth:   37 million light years

 Constellation:        Canes Venatici   

Telescope:  12.5" RCOS

Camera : STL11000, off axis guiding 

Mount :           AP1200

Image date:   Mar 2009

 

   -- Filters used and total time--

Luminous   220 minutes

Red             40 minutes 

Green          40 minutes

Blue             40 minutes

Ha                

OIII

SII