Contains: Blinking planetary, NGC 6826
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NGC 6826: Blinking Planetary

Technical card

Resolution: 2267x1905

Dates: July 14, 2017

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 job: 1672674

RA center: 296.200 degrees

DEC center: 50.528 degrees

Pixel scale: 0.480 arcsec/pixel

Orientation: -113.475 degrees

Field radius: 0.198 degrees

Locations: Back Yard, Lubbock, TX, United States


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!




Sky plot

Sky plot


NGC 6826: Blinking Planetary,