Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  M 51  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool galaxy
M51 enhanced with Ha and SII, Andreas Dietz
M51 enhanced with Ha and SII
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M51 enhanced with Ha and SII

M51 enhanced with Ha and SII, Andreas Dietz
M51 enhanced with Ha and SII
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M51 enhanced with Ha and SII

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Description

Last but not least here is another enhancement of my whirlpool image. I've found some experimental SII narrowband data. It was almost empty, but a few central parts were different to the Ha channel, so I decided to make an overlay using a yellow mask.

That's the current color mapping :

R = Red (Bayer CFA) + Halpha + SII

G = Green (Bayer CFA) + SII

B = Blue (Bayer CFA)

Enjoy!

Comments

Revisions

  • M51 enhanced with Ha and SII, Andreas Dietz
    Original
  • M51 enhanced with Ha and SII, Andreas Dietz
    B
  • Final
    M51 enhanced with Ha and SII, Andreas Dietz
    C

B

Description: cropped to same FOV as in the hydrogen enhanced image

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C

Description: stars shrinked with StarTools

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M51 enhanced with Ha and SII, Andreas Dietz

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Distant Galaxies