M101 (Messier 101), the Pinwheel Galaxy needs no introduction. One of the most photographed galaxies of the northern sky together with M32. A majestic spiral galaxy in the constellation Ursa Major, with its long arms that extend far beyond the galaxy core. The galaxy is almost twice as the diameter of the Milky way
The many emission star-forming regions have been enhanced with Ha signal in HaLRGB for a total of 27 hours integration.
High resolution image here.



