Hemisphere:  Northern  ·  Contains:  Dumbbell nebula  ·  M 27  ·  M27  ·  NGC 6853  ·  PK060-03.1
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M27 (Dumbbell Nebula), 



    
        

            Joel Shepherd
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M27 (Dumbbell Nebula)

Imaging telescopes or lenses: EdgeHD 8

Imaging cameras: Atik 460EX Mono

Mounts: Astro-Physics Mach1GTO

Guiding telescopes or lenses: EdgeHD 8

Guiding cameras: Lodestar X2

Focal reducers: Celestron EdgeHD 0.7x

Software: PixInsight 1.8  ·  Craig Stark Nebulosity 3

Filters: Astrodon 5nm SII  ·  Astrodon 5nm H-alpha  ·  Astrodon 5nm Olll

Accessory: QHYCCD OFF AXIS GUIDER


Dates:July 6, 2017July 12, 2017July 13, 2017July 14, 2017

Frames:
Astrodon 5nm H-alpha: 15x600" 0C bin 1x1
Astrodon 5nm Olll: 15x600" 0C bin 1x1
Astrodon 5nm SII: 15x600" 0C bin 1x1

Integration: 7.5 hours

Avg. Moon age: 17.21 days

Avg. Moon phase: 84.88%

Bortle Dark-Sky Scale: 6.00


Astrometry.net job: 1682928

RA center: 19h 59' 37"

DEC center: +22° 43' 22"

Pixel scale: 0.731 arcsec/pixel

Orientation: 165.855 degrees

Field radius: 0.171 degrees


Resolution: 1280x1096

Locations: Home, Seattle, WA, United States

Data source: Backyard

Description

Subject: M27: A planetary nebula in the constellation Vulpecula, located about 1360 light-years from earth.

Capture notes: A straightforward narrowband capture. S-ii was captured over two different nights due to some clouds coming in the first night, but otherwise all lights were taken during a long run of extremely clear summer nights in Seattle (making up for last winter I suppose).

Processing notes: I used tone maps to stretch the individual narrowband channels, combined them into an RGB image and then applied a synthetic luminance made by integrating the original narrowband channels. My main concern with this image is whether I went overboard with deconvolution ... most of the detail can be attributed to applying local histogram equalization to the luminance.

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JoelShepherd
Joel Shepherd
License: Attribution Creative Commons
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M27 (Dumbbell Nebula), 



    
        

            Joel Shepherd