M81 Enlargement

This is an enlargement of M81 (about 75% of the original resolution) from this full frame shot

 

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Vixen VC200L @ f/9 (L=Ha) & TEC140 Apo 140/f7 + FF (RGB) + AP 900GTO SBIG STL 11K C2, binning 1x1, T=-20°C

L(180m) Ha (170m) Visac

RGB(50:40:70m) TEC

OPTEC LRGB

Gambugliano (VI) Italy

M.Lorenzi

 

 

 
 
 
 
 
 

 

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