Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  HD122865  ·  M 101  ·  NGC 5447  ·  NGC 5449  ·  NGC 5450  ·  NGC 5451  ·  NGC 5453  ·  NGC 5455  ·  NGC 5457  ·  NGC 5461  ·  NGC 5462  ·  NGC 5471  ·  NGC 5477  ·  Pinwheel galaxy
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The Pinwheel Galaxy (M101), estabrook
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The Pinwheel Galaxy (M101)

Getting plate-solving status, please wait...
The Pinwheel Galaxy (M101), estabrook
Powered byPixInsight

The Pinwheel Galaxy (M101)

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Description

The Pinwheel Galaxy (M101). 140 x 25 seconds for about 58 minutes total integration. My rare visit to a Bortle 4 sky really paid dividends--I'm really pleased with how well this came out (color and clarity) and how easy the data was to work with.  In this version I tried to tame bloated stars that are difficult to avoid when using an Alt-Az mount.  I peeled the stars from the galaxy so that I could work on each separately, and then I re-combined them.  No cooling, no filters, no calibration. (Captured with C6, Alt-Az, Hyperstar, ASI183MC Pro. Processed in Photoshop, Starnet++, and Topaz DeNoise AI.)

Comments

Revisions

  • The Pinwheel Galaxy (M101), estabrook
    Original
  • The Pinwheel Galaxy (M101), estabrook
    B
  • The Pinwheel Galaxy (M101), estabrook
    C
  • Final
    The Pinwheel Galaxy (M101), estabrook
    D

C

Description: The Pinwheel Galaxy (M101). 140 x 25 seconds for about 58 minutes total integration. My rare visit to a Bortle 4 sky really paid dividends--I'm very pleased with how well this came out (color and clarity) and how easy the data was to work with.

In this version I tried to tame bloated stars that are difficult to avoid when using an Alt-Az mount. I peeled the stars from the galaxy so that I could work on each separately, and then I re-combined them.

No cooling, no filters, no calibration. (C6, Alt-Az, Hyperstar, ASI183MC Pro, Optolong L-Enhance. Processed in Photoshop.)

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Sky plot

Sky plot

Histogram

The Pinwheel Galaxy (M101), estabrook

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