Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5447  ·  NGC 5449  ·  NGC 5450  ·  NGC 5451  ·  NGC 5453  ·  NGC 5455  ·  NGC 5457  ·  NGC 5461  ·  NGC 5462  ·  NGC 5471  ·  NGC 5473  ·  NGC 5477  ·  Pinwheel galaxy
M101 - Pinwheel Galaxy, Trace

M101 - Pinwheel Galaxy

M101 - Pinwheel Galaxy, Trace

M101 - Pinwheel Galaxy

Equipment

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Acquisition details

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Description

The Pinwheel Galaxy in Ursa Major is 23 million light years distant, about 10 times more distant than M31 in Andromeda, and nearly twice the diameter of the Milky Way.

This image is first-light for my recently purchased Canon 6D camera. 
The pixel size of the 6D is 6.55um compared to 3.72um for my Canon M50, and thus provides better pixel scale at the higher focal length of my RC8.  The M50 is oversampling when combined with the RC8 which can be seen in my M13 image (note the "soft" appearance of the image).  I plan to reshoot M13 with the 6D to see if it gives a better result.

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