Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  34 P Cyg  ·  Crescent Nebula  ·  IC 4996  ·  NGC 6881  ·  NGC 6888  ·  PK074+02.1  ·  PK076+01.2  ·  Sh2-105  ·  The star 34Cyg
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NGC 6888 and a very faint Soap Bubble, Bob Stevenson
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NGC 6888 and a very faint Soap Bubble

Getting plate-solving status, please wait...
NGC 6888 and a very faint Soap Bubble, Bob Stevenson
Powered byPixInsight

NGC 6888 and a very faint Soap Bubble

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Description

I recently picked up a used C8 EdgeHD and attached a HyperStar lens. I have struggled with centering the corrector plate and collimating the HyperStar. The stars still look like little troll doll heads.

I would have thought that 3 minute subs at f1.9 would be good, but the image seems a little light on signal. Maybe 5 minute subs would have been better.

I was able to pick up the Soap Bubble, which was my goal!

Star colour was supplemented with a T5i / ED80 shot of the same region on the same nights.

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NGC 6888 and a very faint Soap Bubble, Bob Stevenson