Hemisphere:  Northern  ·  Constellation: Vulpecula (Vul)  ·  Contains:  14 Vul  ·  Dumbbell Nebula  ·  M 27  ·  NGC 6853  ·  PK060-03.1  ·  The star 14Vul
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M27 - The Dumbbell Nebula, 



    
        

            Steve Ludwig
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M27 - The Dumbbell Nebula

Getting plate-solving status, please wait...
M27 - The Dumbbell Nebula, 



    
        

            Steve Ludwig
Powered byPixInsight

M27 - The Dumbbell Nebula

Acquisition details

Dates:
Sept. 17, 2020
Frames:
28×300(2h 20′)
Integration:
2h 20′
Avg. Moon age:
0.05 days
Avg. Moon phase:
0.00%

RA center: 19h59m39s.15

DEC center: +22°4051.8

Pixel scale: 1.196 arcsec/pixel

Orientation: -153.182 degrees

Field radius: 0.601 degrees

More info:Open 

Resolution: 3008x2008

File size: 3.8 MB

Data source: Backyard

Description

Equipment

- Main scope: Bresser Messier 10" Newton (254/1270)

- Main camera: Nikon D3300 (unmodified)

- Guide scope: Orion AC 50/162 Deluxe Mini

- Guide camera: ZWO ASI 290MC

- Mount: Skywatcher EQ6-R

- Explore Scientific HR coma corrector

Acquisition

- 28 lights x 300 s = 2 h 20 min

- no dark, flat, bias frames

- no filters

- ISO 800

- Bortle 4

Processing

- stacked in DSS

-> bilinear debayer method & median kappa sigma clipping

- unmodified TIF opened in PixInsight

-> STF stretch

-> dynamic crop

-> dynamic background extraction

-> background neutralization

-> color calibration

-> histogram transformation

-> curves transformation

-> local histogram equalization

-> resample 50%

-> ACDNR

-> separated stars with Starnet++

-> multiscale linear transform on stars only

-> pixel math to recombine stars and background

-> saved as jpg

Comments

Revisions

  • M27 - The Dumbbell Nebula, 



    
        

            Steve Ludwig
    Original
  • Final
    M27 - The Dumbbell Nebula, 



    
        

            Steve Ludwig
    H

H

Description: Instead of the DBE process, I used a synthetic flat this time. This allowed me to use the full FOV, as I got rid of internal reflection artifacts in the corners of the image.

Uploaded: ...

Sky plot

Sky plot

Histogram

M27 - The Dumbbell Nebula, 



    
        

            Steve Ludwig

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