Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  29 b03 Cyg  ·  34 P Cyg  ·  36 Cyg  ·  37 gam Cyg  ·  40 Cyg  ·  42 Cyg  ·  44 Cyg  ·  B342  ·  B343  ·  B344  ·  B347  ·  B348  ·  Crescent Nebula  ·  Cygnus  ·  HD191703  ·  HD191742  ·  HD191978  ·  HD192001  ·  HD192003  ·  HD192020  ·  HD192039  ·  HD192041  ·  HD192078  ·  HD192079  ·  HD192102  ·  HD192103  ·  HD192123  ·  HD192163  ·  HD192182  ·  HD192224  ·  And 267 more.
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IC 1318 - the gamma Cygni nebula, Tom Gray
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IC 1318 - the gamma Cygni nebula

Getting plate-solving status, please wait...
IC 1318 - the gamma Cygni nebula, Tom Gray
Powered byPixInsight

IC 1318 - the gamma Cygni nebula

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Description

Taken at 70mm f6 using my Pentax SLR zoom lens, this image centres on the nebulosity collectively cataloged as IC 1318 around the bright star Sadr (Gamma Cygni). There is quite a lot of noise from this short integration, encroaching moonlight, and as this was shot at astro twilight. I had trouble with severe gradients, which are still visible as horizontal banding, despite a very aggressive wipe. 

Unguided, these 2 min exposures were captured in Meade Envisage, aligned and stacked in ASTAP (including deep sky annotations on the unstretched stack revision B), and processed in Startools 1.8 alpha.

Many familiar nebulae, such as the butterfly, crescent, and open star clusters are visible.

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Revisions

  • Final
    IC 1318 - the gamma Cygni nebula, Tom Gray
    Original
  • IC 1318 - the gamma Cygni nebula, Tom Gray
    B

B

Description: Annotation of the unstretched, unprocessed stack using Han Klein's excellent ASTAP software. Note the severe light gradient in the image. Have fun trying to decipher this!

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IC 1318 - the gamma Cygni nebula, Tom Gray