M81, M82 region; Ursa Major 
Astro Systeme Austria N12 f/3.5 astrograph 
KAI-11000M; SBIG STL  
Total Exposure 6+hours; LRGB 120:85:85:95 min; unbinned 
March 3-5, 2008;  Inkom,ID 
Comments:   This image shows two classical galaxies:  M81-a spiral type, and M82-an irregular type.  An image of M81 with a narrower field of view may be seen  here.  M81 shows areas of new stars (blue regions) and new star formation (pink emission nebulae within its galactic disk), while M82 shows a galaxy in chaos.  It shows an explosive pattern of central destruction with gasses radiating out from its core.  Thier distance is approximately 11.8 million light years.  The background appears to be cluttered.  This is due to extra galactic dust clouds which make up integrated flux nebulae. These are "high galactic latitude nebulae that are illuminated not by a single star (as most nebula in the plane of the Galaxy are) but by the energy from the integrated flux of all the stars in the Milky Way.  These nebulae clouds, an important component of the Interstellar Medium, are composed of dust particles, hydrogen and carbon monoxide and other elements."(Mandel
Back to Galaxies