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3-panel mosaic on the Veil Nebula, Paul Macklin
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3-panel mosaic on the Veil Nebula

Revision title: RGB mosaic - slightly reprocessed

3-panel mosaic on the Veil Nebula, Paul Macklin
Powered byPixInsight

3-panel mosaic on the Veil Nebula

Revision title: RGB mosaic - slightly reprocessed

Equipment

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Acquisition details

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Description

This is the Veil Nebula: a remnant of long-past supernova that left with beautiful expanding wisps of ionized hydrogen (red) and oxygen (blue-green). This high-resolution look was captured as a 3-panel mosaic at a 1476mm focal length with 0.525" / pixel. Each panel is two nights of 5 minute exposures, for a total of 3 hours per panel and 9 hours overall. The images have been scaled down to 50% resolution for easier sharing. 

Processing was a pure joy: I only needed minimal touchup in photoshop to bring out the structure, and minimal denoising in Topaz (1% reduce noise, 5% sharpening). The Ha and [OIII] panels show the raw mosaics without additional processing. I also experimented with RegiStax wavelet sharpening on selected portions. 

A: Mosaic in Hyrogen-alpha
B: Mosaic in [Oxygen III]
C: Ha and [OIII] combined in the HOO palette 
D: Original RGB capture 
E: Zoom and and wavelet sharpen: ROI 1
F: Zoom and and wavelet sharpen: ROI 2
G: Zoom and and wavelet sharpen: ROI 3
H: Zoom and and wavelet sharpen: ROI 4
I: Ha and [OIII] combined in the HOO palette -- revised
K: Original RGB -- revised to emphasize [OIII]

Comments

Revisions

  • 3-panel mosaic on the Veil Nebula, Paul Macklin
    Original
  • 3-panel mosaic on the Veil Nebula, Paul Macklin
    B
  • 3-panel mosaic on the Veil Nebula, Paul Macklin
    C
  • 3-panel mosaic on the Veil Nebula, Paul Macklin
    D
  • 3-panel mosaic on the Veil Nebula, Paul Macklin
    E
  • 3-panel mosaic on the Veil Nebula, Paul Macklin
    F
  • 3-panel mosaic on the Veil Nebula, Paul Macklin
    G
  • 3-panel mosaic on the Veil Nebula, Paul Macklin
    H
  • 3-panel mosaic on the Veil Nebula, Paul Macklin
    I
  • Final
    3-panel mosaic on the Veil Nebula, Paul Macklin
    K

B

Title: [OIII] mosaic (at 50% resolution)

Uploaded: ...

C

Title: HOO mosaic at 50%

Description: Combining Ha and [OIII] into the a mosaic with the classic HOO palette.

Uploaded: ...

D

Title: Mosaic in original RGB

Uploaded: ...

E

Title: Zoom and Wavelet Sharpen - Region 1

Description: Zoomed in on a ROI in the HOO image and sharpened with Registax

Uploaded: ...

F

Title: Zoom and Wavelet Sharpen - Region 2

Description: Zoomed in on a ROI in the HOO image and sharpened with Registax

Uploaded: ...

G

Title: Zoom and Wavelet Sharpen - Region 3

Description: Zoomed in on a ROI in the HOO image and sharpened with Registax

Uploaded: ...

H

Title: Zoom and Wavelet Sharpen - Region 4

Description: Zoomed in on a ROI in the HOO image and sharpened with Registax

Uploaded: ...

I

Title: HOO mosaic - slightly reprocessed

Description: I slighted darkened and increased gamma to further emphasize the [OIII] details with more contrast. Saved at 50% of original resolution.

Uploaded: ...

K

Title: RGB mosaic - slightly reprocessed

Description: I lightly edited the RGB mosaic to further emphasize the [OIII] signal.

Uploaded: ...

Sky plot

Sky plot

Histogram

3-panel mosaic on the Veil Nebula, Paul Macklin