Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5457  ·  NGC 5473  ·  NGC 5477
M 101 : the Pinwheel properly exposed !, Ewam
M 101 : the Pinwheel properly exposed !
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M 101 : the Pinwheel properly exposed !

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Description

> VERSION E : minor corrections on the star colors (purple halo removed, little saturation) and under processed on the galaxy : more "natural" ? Hmm

> VERSION D : I wasn't happy with color balance (to much search into selective colors...) and excess contrast in StarTools, so I went back into PixInsight... This framing renders a "visual like" view of the galaxy. More (well chosen) subs should enhance the definition.

----TECH SPEC : 29 x 122sec @ 2000iso + 8 UHC x 300sec @ 3200iso

OK, I still feel I need to progress on both acquisition - more subs on one target (I did Rosette AND M101 the same night, out under the sky, without any automated process, Brrr), than on the all important editing trial & error routine. But this is quite pleasant to see some improvements here and there.

So at last, I found a proper exposure and iso setting for this galaxy above my belgium sky :

> VERSION A is a plain (broadband) 29x 122 second subs stacked and processed ;

> VERSION B is a version with added UHC subs : an extra 8x 300". The framing moved in the process of screwing on the UHC filter, so You can see a lighter frame all around...

> VERSION C : revisiting StarTools with some nice surprises - "live", gradient reduction, HDR core extraction, a user-friendly noise reduction, ... bunch of nice detailed gained in this one !

> Next shall come Ha subs...

Comments

Revisions

  • M 101 : the Pinwheel properly exposed !, Ewam
    Original
  • M 101 : the Pinwheel properly exposed !, Ewam
    B
  • M 101 : the Pinwheel properly exposed !, Ewam
    C
  • M 101 : the Pinwheel properly exposed !, Ewam
    D
  • Final
    M 101 : the Pinwheel properly exposed !, Ewam
    E

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M 101 : the Pinwheel properly exposed !, Ewam