Abell PNs is a catalogue of about one hundred planetary nebulae, most f them being large and faint.
And among them, beetwen number 30 and 40, corresponding at springtime, four are particularly interesting depending on their shape or a strange detail.
Abell 31 and 36 are a bit complex, where as Abell 33, 34.
But strangely, a bright star lies exactly on the SW edge of A33, and a very small galaxy is on the exact W border of A34.
You could have more details of these observations at http://www.deepsky-d...l-pn/dsdlang/fr