Certainly there are, at least ones that can be imaged using amateur equipment. Look here:
https://www.astrobin.com/182048/
Captured with a homemade Newt.
There is a thread about this area on CN:
https://www.cloudynights.com/topic/5...dss-j10384849/
He used a TEC140.
I doubt observationally it could be seen.