Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5457
M101 , 1074j
M101
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M101

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Acquisition details

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Description

This is my second try at M101. The first was a longer focal length earlier this year and missed lots the outer detail. In my opinion, this is one of the most beautiful galaxies due to all the star formation and Hydrogen alpha areas. H-a was blended into the red channel in this image. My guiding/tracking wasn't too good for the lum channel so I had to correct the brighter stars as they were slightly elongated. I also continue to struggle with RGB as my color image is again a bit too purple/magenta in it. LRHaGB, L 10x350s, Ha 6x1200, RGB 6x300 2x2 binned.

Comments

Revisions

  • M101 , 1074j
    Original
  • M101 , 1074j
    B
  • Final
    M101 , 1074j
    C

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M101 , 1074j