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Hi Alex,
Your query rather intrigued me.
Here is a screen clip from wikisky roughly the FOV of your diagram. I have added the magnitudes of some of the stars.
The approximate location of your two "puffs" are indicated by the asterisks. PGC 215090 (mag 16) is too far away. It is unlikely you would see it in your scope anyway.
Nothing much appears where the two asterisks are.
The images on wikisky would show objects much fainter than what you could eyeball in your telescope even if it is a 17.5 inch scope.
Discounting reflections in the eyepiece, it is possible that your two puffs may be small regions of slightly higher star density. These can give the illusion of nebulosity.
Regards, Rob
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