Hi Hajü,

the summer I observed this one for the first time, I talked to Matthias Kronberger on Deep Sky Meeting (the first one in 2009). As you can imagine, he already had observed this one before (if it comes to faint HII regions, Matthias has bagged them all :-) ). This was at the time when he only had his 10". So this should be a lower limit, using filters, of course.