Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  29 Cyg  ·  Crescent Nebula  ·  NGC 6888  ·  The star b3 Cyg
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NGC 6888 - Crescent Nebula, Harlan King
NGC 6888 - Crescent Nebula
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NGC 6888 - Crescent Nebula

Revision title: Starfield Reduced

Getting plate-solving status, please wait...
NGC 6888 - Crescent Nebula, Harlan King
NGC 6888 - Crescent Nebula
Powered byPixInsight

NGC 6888 - Crescent Nebula

Revision title: Starfield Reduced

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Description

This is the first image using my new ZWO AM5 Mount. Upgraded due to the weight of my rig being at the limit of the Skywatcher Star Adventurer GTI (11lbs).

Guiding was great (sub 0.8"RMS), even with the bad wildfire smoke BC is experiencing.

I'm starting to suspect I have a fan vibration issue on the 2600MC Pro. Looking back through all of my data, the stars are oblong in the same direction. This is apparent in all of my images taken with the 2600. Backfocus issues are ruled out due to the uniformity of the stretch over the whole image.

I'll take some test images tonight with the fan off and see if the issue persists. If so, I'll get some Noctua Anti-Vibration spacers and see if that makes a difference.

Clear Skies!

Harlan

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  • NGC 6888 - Crescent Nebula, Harlan King
    Original
  • Final
    NGC 6888 - Crescent Nebula, Harlan King
    B

B

Title: Starfield Reduced

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NGC 6888 - Crescent Nebula, Harlan King