Celestial hemisphere:  Northern  ·  Constellation: Pegasus (Peg)  ·  Contains:  NGC 7331  ·  NGC 7333  ·  NGC 7335  ·  NGC 7336  ·  NGC 7337  ·  NGC 7338  ·  NGC 7340
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NGC7331 and Stephan's Quintet, tommy_nawratil
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NGC7331 and Stephan's Quintet

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Description

Here I tried to work on this classic somewhat deeper, using two splendid nights for Lumi and one more for RGB frames. The background is not quite even, because very thin galactic cirrus (IFN) is prevalent throughout the region, causing subtile translucency and darker areas. First I thought my flats are faulty, but by comparing to some references I got what really happens. A bunch of smaller galaxies lurk in the background, if you catch them you may keep them ;-)

here a contrast enhanced inverted version, for better display of IFN:

https://dl.dropboxusercontent.com/u/87975652/NGC7331_20130904_10Nf4_GPU_LRGB_inverted.jpg

Comments

Revisions

  • NGC7331 and Stephan's Quintet, tommy_nawratil
    Original
  • NGC7331 and Stephan's Quintet, tommy_nawratil
    D
  • NGC7331 and Stephan's Quintet, tommy_nawratil
    E
  • Final
    NGC7331 and Stephan's Quintet, tommy_nawratil
    F

D

Description: inverted version for IFN

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E

Description: annotated version

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F

Description: crop

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NGC7331 and Stephan's Quintet, tommy_nawratil