Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  M 51  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool galaxy
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M 51 HaLRGB, Gary Opitz
M 51 HaLRGB
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M 51 HaLRGB

Getting plate-solving status, please wait...
M 51 HaLRGB, Gary Opitz
M 51 HaLRGB
Powered byPixInsight

M 51 HaLRGB

Equipment

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Acquisition details

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Description

This is a complete reprocess of my recent Messier 51 - Whirlpool Galaxy , now with the addition of three hours of Ha (hydrogen alpha) filter data. This addition brings out the red emission nebulae that populate the spiral arms.

Comments

Revisions

  • M 51 HaLRGB, Gary Opitz
    Original
  • M 51 HaLRGB, Gary Opitz
    B
  • M 51 HaLRGB, Gary Opitz
    C
  • M 51 HaLRGB, Gary Opitz
    D
  • Final
    M 51 HaLRGB, Gary Opitz
    E

B

Description: Some minor tweaks to saturation.

Uploaded: ...

C

Description: OK, I really backed off on saturation here. I am thinking I have been way to garish in the original outputs.....

Uploaded: ...

D

Description: Redid the lower saturation, but this time I excluded stars since I wanted to keep the original saturation for them.

Uploaded: ...

E

Description: Uploaded the image lost in the deletion.

Uploaded: ...

Sky plot

Sky plot

Histogram

M 51 HaLRGB, Gary Opitz