Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Blinking planetary  ·  NGC 6826
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NGC 6826: Blinking Planetary, 



    
        

            rhedden
NGC 6826: Blinking Planetary
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NGC 6826: Blinking Planetary

Technical card

Imaging telescopes or lenses: Edge HD 1100

Imaging cameras: QSI 660 WS

Mounts: Software Bisque Paramount MX

Guiding telescopes or lenses: Edge HD 1100

Focal reducers: Celestron f/7 reducer for Edge 1100 HD

Software: GIMP  ·  Deep Sky Stacker  ·  Fitswork 4  ·  IrfanView  ·  Software Bisque The SkyX Professional  ·  Astra Image 3.0  ·  NCH Software Photo Pad Image Editor  ·  Imagenomic LLC Noiseware

Filters: Orion Extra Narrowband Filter OIII 1.25"  ·  Orion Extra Narrowband Filter Ha 1.25"

Accessory: Innovations Foresight On-axis guider  ·  Starlight Xpress Lodestar X2


Dates:July 14, 2017

Frames:
Orion Extra Narrowband Filter Ha 1.25": 10x180" -14C bin 1x1
Orion Extra Narrowband Filter Ha 1.25": 5x540" -14C bin 1x1
Orion Extra Narrowband Filter OIII 1.25": 6x540" -14C bin 1x1
Orion Extra Narrowband Filter OIII 1.25": 31x60" -14C bin 1x1

Integration: 2.7 hours

Avg. Moon age: 19.80 days

Avg. Moon phase: 73.92%

Bortle Dark-Sky Scale: 7.00


Basic astrometry details

Astrometry.net job: 1672674

RA center: 19h 44' 48"

DEC center: +50° 31' 40"

Pixel scale: 0.480 arcsec/pixel

Orientation: 293.475 degrees

Field radius: 0.198 degrees


Resolution: 2267x1905

Locations: Back Yard, Lubbock, TX, United States

Data source: Backyard

Description

NGC 6826 is the Blinking Planetary Nebula in Cygnus. While this PN is relatively bright, imaging it is quite challenging. The core is so much brighter than the halo that some sort of HDR-like processing technique is necessary to properly capture the entire object. This image was created using narrowband filters with different exposure lengths for the halo and core. 540 second subs were taken to capture the stars and halo, while 60 second Oiii subs and 180s H alpha subs were used for the core and the sky background. Combination of the core and the rest of the image was done manually in GIMP using masking, which was harder than it sounds.

There is a really intense red carbon star on the edge of the PN, which was a pleasant surprise!

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