Galaxy M82 is an edge-on spiral galaxy whose sttructure is disrupted by gravitational interaction with 
M81.  This interaction has spurred a burst of star formation, giving rise to a brilliant region of excited 
Hydrogen.
This image combined 170 minutes of H-alpha, 30 minutes of red, 30 minutes green and 45 minutes of 
blue exposures, all unbinned.  An ST10XME camera was used through a 12" Meade LX200R at f/7  
        
                                                Music:  Vivaldi's Four Seasons - Winter