Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)
Sh2-155  |  Caldwell 9 - Cave Nebula, Victor Van Puyenbroeck
Sh2-155  |  Caldwell 9 - Cave Nebula
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Sh2-155 | Caldwell 9 - Cave Nebula

Revision title: DeepSNR, contrast, reduced stars

Sh2-155  |  Caldwell 9 - Cave Nebula, Victor Van Puyenbroeck
Sh2-155  |  Caldwell 9 - Cave Nebula
Powered byPixInsight

Sh2-155 | Caldwell 9 - Cave Nebula

Revision title: DeepSNR, contrast, reduced stars

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Description

I've been avoiding this nebula for the past years because it does not really appeal to me in broadband. Decided to go deep with H-alpha only just to see what was there!

Denoised with my GrayscaleDeepSNR script (link to PixInsight forum ).

All data was collected during nautical twilight, we don't have true darkness here at 51°N during the Summer months.

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Revisions

  • Sh2-155  |  Caldwell 9 - Cave Nebula, Victor Van Puyenbroeck
    Original
  • Final
    Sh2-155  |  Caldwell 9 - Cave Nebula, Victor Van Puyenbroeck
    B

B

Title: DeepSNR, contrast, reduced stars

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Sh2-155  |  Caldwell 9 - Cave Nebula, Victor Van Puyenbroeck