Celestial hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  NGC 891
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NGC891 LRHaGB, andrea tasselli
NGC891 LRHaGB
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NGC891 LRHaGB

Revision title: LRGB Version

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NGC891 LRHaGB, andrea tasselli
NGC891 LRHaGB
Powered byPixInsight

NGC891 LRHaGB

Revision title: LRGB Version

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Description

This not so little gem is a favourite of mine and I rated it one of the finest in the northern hemisphere. Imaged it in 2006 (unguided, of course) but I wanted a bit more scale so I did it again 3 year later but re-using all the colour shots of the previous run (since the pixel scale wasn't that different) and topped them up with few of new ones (colour shots, that is, luminance frames were entirely new). Kept the same processing of those days of yore, for once.

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Revisions

  • NGC891 LRHaGB, andrea tasselli
    Original
  • Final
    NGC891 LRHaGB, andrea tasselli
    B

B

Title: LRGB Version

Description: This is a full revision with the image redone from scratch as far as it could go (i.e., not from the raw unprocessed data). As expected there was a massive improvement, as I see it, from the original version (which was pretty good at that time) courtesy of all the tools PI and the various add-ons have to offer.

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NGC891 LRHaGB, andrea tasselli