Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 4277  ·  IC 4278  ·  M 51  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool Galaxy
M51 - Just Briefly in Passing, Graeme Coates
M51 - Just Briefly in Passing
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M51 - Just Briefly in Passing

M51 - Just Briefly in Passing, Graeme Coates
M51 - Just Briefly in Passing
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M51 - Just Briefly in Passing

Equipment

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Acquisition details

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Description

I tend to not use my home scope so much for deep sky work these days, instead using it for variable star work (the weather is unreliable in the UK - it means it's sometimes just impossible to finish projects off!).

I had been gathering data on V447 UMa and V451 Dra, and with high thin cloud coming through, I thought I'd grab some "nonsense" data on M51. I'd never imaged this before, and wanted to see what the 14" newtonian could pickout in the short time I had available, especially since I'd resolved the mechanical issue resulting in some of the poor tracking that I'd had on my home kit (it doesn't matter so much for variable star work, more so for long exposure astrophotography!).

I landed up with just over an hour of data through the "C" filter - reduced in PI, and then with Mure Denoise, Deconvolution, Masked and Arcsinh stretches, histogram adjustments with HDRMT, LHE.

Unsurprisingly, it could be deeper, and a bit less noisy in the background, but there's some decent detail in the galaxy itself.

Comments

Revisions

  • M51 - Just Briefly in Passing, Graeme Coates
    Original
  • Final
    M51 - Just Briefly in Passing, Graeme Coates
    C

C

Description: Another stab from scratch - improved noise handling and less harsh in processing the galaxy features.

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M51 - Just Briefly in Passing, Graeme Coates