Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  B168  ·  Cocoon Nebula  ·  HD208362  ·  IC 5146  ·  LBN 424  ·  LDN 1055  ·  Sh2-125  ·  VdB147
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SH2-125/IC 5146 Cocoon Nebula, Chris Ashford
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SH2-125/IC 5146 Cocoon Nebula

Revision title: Do-Over - version2

Getting plate-solving status, please wait...
SH2-125/IC 5146 Cocoon Nebula, Chris Ashford
Powered byPixInsight

SH2-125/IC 5146 Cocoon Nebula

Revision title: Do-Over - version2

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Description

two days of imaging, the first being a test for sub-exposure length (120, 180, 240s), the second being all 240s subs, 240s being the winner in my test.

I know there is dark nebulosity in this target, but I really struggle to pull it out. The background is a little noisy as a result of my not wanting to suppress the shadows too much.

I'm surprised that small blue reflection nebula doesn't come up in the plate solving with any designation....

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  • SH2-125/IC 5146 Cocoon Nebula, Chris Ashford
    Original
  • Final
    SH2-125/IC 5146 Cocoon Nebula, Chris Ashford
    B

B

Title: Do-Over - version2

Description: Stopped trying to pull out the dark nebulosity after my friend Jim Potts told me that it is not possible to extract dark nebulas using Narrow Band filters!

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SH2-125/IC 5146 Cocoon Nebula, Chris Ashford

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