Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  NGC 6979  ·  The star 52Cyg
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NGC 6979, aka Pickering's Triangle, 



    
        

            Tim Lewis
NGC 6979, aka Pickering's Triangle
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NGC 6979, aka Pickering's Triangle

Getting plate-solving status, please wait...
NGC 6979, aka Pickering's Triangle, 



    
        

            Tim Lewis
NGC 6979, aka Pickering's Triangle
Powered byPixInsight

NGC 6979, aka Pickering's Triangle

Acquisition details

Date: Sept. 27, 2013

Frames: 19

Focal length: 709


Basic astrometry details

Astrometry.net job: 3624913

RA center: 20h48m09s.6

DEC center: +31°3502

Pixel scale: 1.844 arcsec/pixel

Orientation: 272.017 degrees

Field radius: 1.067 degrees

Resolution: 3470x2310

File size: 5.3 MB

Locations: SDAA Club Site, Tierra del Sol, CA, United States

Data source: Traveller

Description

This is NGC 6979, aka Pickering's Triangle. This nebula, along with NGC 6960, and NGC 6992, comprise the Veil Nebula in Cygnus. The image was captured in September of 2013 at the SDAA Club Site near Tierra del Sol, CA. It is comprised of 19 600-second subframes taken through a modified Canon 350D on a Stellarvue SV102ED2.

One note of interest in this image was the challenge of making the nebula the object of interest: this target is deep in the Milky Way (my goodness, this is 2017: can't we come up with a better name for our galaxy than "The Milky Way?" Sheeesh!) , and as such, the star field is incredibly dense in the unprocessed image. I ended up using a technique from the Pixinsight forums (with the aid of a few very useful process icons) that involved creating a good star mask and iteratively applying a Morphological Transform to the image. After that, I applied a small negative Curves Tranformation to the image to further dim the stars. The result was a fairly natural (to my eye, at least) diminution of the star field.

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NGC 6979, aka Pickering's Triangle, 



    
        

            Tim Lewis