Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5422  ·  NGC 5457  ·  NGC 5473  ·  NGC 5474  ·  NGC 5485
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M101: Bortle 1 vs Bortle 9, Andrew Burwell
M101: Bortle 1 vs Bortle 9
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M101: Bortle 1 vs Bortle 9

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M101: Bortle 1 vs Bortle 9, Andrew Burwell
M101: Bortle 1 vs Bortle 9
Powered byPixInsight

M101: Bortle 1 vs Bortle 9

Equipment

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Description

M101 shot from my remote setup in New Mexico under Bortle 1 skies, and also M101 shot with the same exact setup from my back yard (bortle 9) with very similar integration time.

Comments

Revisions

  • M101: Bortle 1 vs Bortle 9, Andrew Burwell
    Original
  • M101: Bortle 1 vs Bortle 9, Andrew Burwell
    C
  • M101: Bortle 1 vs Bortle 9, Andrew Burwell
    D
  • Final
    M101: Bortle 1 vs Bortle 9, Andrew Burwell
    E
  • M101: Bortle 1 vs Bortle 9, Andrew Burwell
    F

C

Description: Single luminance frame of 10 minutes from the bortle 1 zone. Although noisy, a singe frame contains about 90% of the finished image detail.

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D

Description: A single 5 minute frame from B9 zone. I can't shoot 10 minute frames here due to the light pollution.

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F

Description: A tight crop of M101

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Sky plot

Sky plot

Histogram

M101: Bortle 1 vs Bortle 9, Andrew Burwell