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  ·  PGC 2464645  ·  PGC 2468609  ·  PGC 2469762  ·  PGC 2816075  ·  PGC 49919  ·  Pinwheel galaxy
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M 101 from the City, Glenn Diekmann
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M 101 from the City

Getting plate-solving status, please wait...
M 101 from the City, Glenn Diekmann
Powered byPixInsight

M 101 from the City

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Description

As I continue to fine-tune my longer focal length imaging setup, I decided to attempt M 101 from my urban/suburban back yard. As expected, the biggest issue I encountered while processing was noise. I reduced the noise aggressively when the image was linear but found, after the histogram stretch, that I could reduce it no further without compromising the finer details. I decided to leave it a little noisy.

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Sky plot

Sky plot

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M 101 from the City, Glenn Diekmann