Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5457  ·  NGC 5461  ·  NGC 5477
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M101, Reinhard Kuske
M101
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M101

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M101, Reinhard Kuske
M101
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M101

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Description

I guess a 6 " Newton with f5 is at its limit for any Galaxy. With tools like BXT there soome details possible but 8" or 10 " would be much better for clearer details.
By accident frames where taken without cooling , so there was a temperatur gradient over all picture from 5.3 to -0.3 °C.  I have made the callibration frames at 2.5°C . It worked nearly acceptable.
But the result is okay for me at small zoom scale.
Hope some of you may like the picture as well.

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M101, Reinhard Kuske