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 5477  ·  PGC 2464645  ·  PGC 2468609  ·  PGC 2469762  ·  PGC 2816075  ·  PGC 49919  ·  Pinwheel galaxy
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M101 Pinwheel Galaxy, Denis Dumas
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M101 Pinwheel Galaxy

Getting plate-solving status, please wait...
M101 Pinwheel Galaxy, Denis Dumas
Powered byPixInsight

M101 Pinwheel Galaxy

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Description

This is my longest integration so far with my Celestron CPC 800!

This beautiful galaxy is a very popular target at this time of year. At a distance of 21 million light years we can see incredible detail. See the wikipedia pages for all the details.

For this first version I obtained better results by NOT using my flats, and used the DBE process of PixInsight to remove the background.

Comments

Revisions

  • M101 Pinwheel Galaxy, Denis Dumas
    Original
  • M101 Pinwheel Galaxy, Denis Dumas
    B
  • Final
    M101 Pinwheel Galaxy, Denis Dumas
    C

B

Description: Processed this version using my flats, better and darker background in this version

Uploaded: ...

C

Description: Enhanced the HII regions in the spiral arms, corrected magenta stars, used PCC instead of ColCal, enhanced detail in NGC5471

Uploaded: ...

Sky plot

Sky plot

Histogram

M101 Pinwheel Galaxy, Denis Dumas