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 / C 30 region - RGB, Rodolphe Goldsztejn
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NGC7331 / C 30 region - RGB

Getting plate-solving status, please wait...
NGC7331 / C 30 region - RGB, Rodolphe Goldsztejn
Powered byPixInsight

NGC7331 / C 30 region - RGB

Equipment

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Acquisition details

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Description

C 30, not often captured with a C8 in RGB. 90 shots of 10 minutes over 5 nights, approx 30 per filter.

Conditions were suboptimal: wind gusts, average seeing, poor transparency, and moonlight.

Gradient removal was a nightmare: Astropixelprocessor was not able to cope for it initially; so went to PI, remove gradient using 2 times ABE in a row, then a manual run in DBE; then back to APP for final gradient reduction. Next processing steps performed in PI: 2 passes of NR - TDV and MMT, non-linear stretch, SCNR, MLT and LHE for light details enhancements. Finally, contrast and saturation in Lightroom.

This area shows an incredible number of galaxies in a small field. I didn't say my last word about it ;) -

Comments

Revisions

  • Final
    NGC7331 / C 30 region - RGB, Rodolphe Goldsztejn
    Original
  • NGC7331 / C 30 region - RGB, Rodolphe Goldsztejn
    B
  • NGC7331 / C 30 region - RGB, Rodolphe Goldsztejn
    C
  • NGC7331 / C 30 region - RGB, Rodolphe Goldsztejn
    D
  • NGC7331 / C 30 region - RGB, Rodolphe Goldsztejn
    E
  • NGC7331 / C 30 region - RGB, Rodolphe Goldsztejn
    I

B

Description: C 30, not often captured with a C8 in RGB.

90 shots of 10 minutes over 5 nights, approx 30 per filter. Conditions were suboptimal: wind gusts, average seeing, poor transparency, and moonlight.

Gradient removal was a nightmare: Astropixelprocessor was not able to cope for it initially; so went to PI, remove gradient using 2 times ABE in a row, then a manual run in DBE; then back to APP for final gradient reduction. Next processing steps performed in PI: 2 passes of NR - TDV and MMT, non-linear stretch, SCNR, MLT and LHE for light details enhancements. Finally, contrast and saturation in Lightroom.

This area shows an incredible number of galaxies in a small field. I didn't say my last word about it ;)

Uploaded: ...

C

Description: LRGB, other processing approach

Uploaded: ...

D

Description: Reworked version with selection of better subframes

Uploaded: ...

E

Description: Completely reprocessed using the same approach as the recent uploads.
Feel free to comment!

Uploaded: ...

I

Description: Desaturated the background, to remove a slight red gradient I was not able to see myself (color-blindness). Thanks to my astroromandie friends to spot it and with the process to remove it.

Uploaded: ...

Sky plot

Sky plot

Histogram

NGC7331 / C 30 region - RGB, Rodolphe Goldsztejn