Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5451  ·  NGC 5455  ·  NGC 5457  ·  NGC 5461  ·  NGC 5471
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M-101, John Leader
M-101
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M-101

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M-101, John Leader
M-101
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M-101

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Acquisition details

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Description

Luminance data consists of 145  subs of 4.5 minutes duration.
Ha data consists of 19 subs of 4.5 min duration.
RGB data consists of 24 subs (8 per channel)
All subs calibrated with darks and bias frames .
Wide band data also was calibrated with flats.
I have added about 1.25 hours more luminence data in April,2022 and reprocessed this image.

Comments

Revisions

  • M-101, John Leader
    Original
  • M-101, John Leader
    B
  • Final
    M-101, John Leader
    C

B

Description: Colour recalibrated

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M-101, John Leader