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NGC 6357 - SH(!), Yann-Eric BOYEAU

NGC 6357 - SH(!)

Getting plate-solving status, please wait...
NGC 6357 - SH(!), Yann-Eric BOYEAU

NGC 6357 - SH(!)

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Description

Hi,

This is an unusual (experimental?) attempt on NGC 6357 using only Ha and SII data.

My first subs with OIII filter were very disappointing even binned 2X. Signal was very weak, even on the bright center of the Nebula. (Suburban area? filter performance?)

SII was rather interesting, so I decided to put all my efforts on these only 2 bands: Ha and SII.

More than 25 hours of integration.

Instead of SHO, I tried many band combinations, finally I found that something like S(S*H)H may have potential to highlight contrast between bands.

Maybe I did wrong... let me know what you thing of the monster lobster :-)

Thanks for reading and watching

Comments

Revisions

    NGC 6357 - SH(!), Yann-Eric BOYEAU
    Original
    NGC 6357 - SH(!), Yann-Eric BOYEAU
    B
    NGC 6357 - SH(!), Yann-Eric BOYEAU
    C
  • Final
    NGC 6357 - SH(!), Yann-Eric BOYEAU
    D

B

Description: A bit brighter

Uploaded: ...

C

Description: A less greenish version

Uploaded: ...

D

Description: Hard to find a good color balance... time to wait to look at this image with fresh eyes !

Uploaded: ...

Histogram

NGC 6357 - SH(!), Yann-Eric BOYEAU

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