Celestial hemisphere:  Northern  ·  Constellation: Pisces (Psc)  ·  Contains:  M 74  ·  NGC 628
M74  Phantom Galaxy  - another splendid Spiral - version Ha-LRGB, Arnaud Peel
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M74 Phantom Galaxy - another splendid Spiral - version Ha-LRGB

M74  Phantom Galaxy  - another splendid Spiral - version Ha-LRGB, Arnaud Peel
Powered byPixInsight

M74 Phantom Galaxy - another splendid Spiral - version Ha-LRGB

Equipment

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Acquisition details

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Description

The goal was to get the arms as long as possible (you can see some small galaxies at extremities )

and the possible details in the arms

For this version, I added the Halpha layer and try to keep saturation at a low level

M74 finally looks like a small M101

Wiki :

Messier 74 (also known as NGC 628 and Phantom Galaxy) is a spiral galaxy in the constellation Pisces. It is at a distance of about 32 million light-years away from Earth. The galaxy contains two clearly defined spiral arms and is therefore used as an archetypal example of a grand design spiral galaxy. It is estimated that M74 is home to about 100 billion stars.

70 Light subs @180s gain zero and -15°C and

6 Hapha subs @300s gain zero and -15°C and

20 Blue subs @180s gain zero and -10°C

20 Green subs @180s gain zero and -10°C

20 Red subs @180s gain zero and -10°C

Total exposure 8 hours

Comments

Revisions

  • M74  Phantom Galaxy  - another splendid Spiral - version Ha-LRGB, Arnaud Peel
    Original
  • M74  Phantom Galaxy  - another splendid Spiral - version Ha-LRGB, Arnaud Peel
    B
  • M74  Phantom Galaxy  - another splendid Spiral - version Ha-LRGB, Arnaud Peel
    C
  • Final
    M74  Phantom Galaxy  - another splendid Spiral - version Ha-LRGB, Arnaud Peel
    D

Sky plot

Sky plot

Histogram

M74  Phantom Galaxy  - another splendid Spiral - version Ha-LRGB, Arnaud Peel