Bert,
I made enquiries with CDS on your behalf....just received the following reply:
First, you should check that the object is not yet listed in a known list of Planetary Nebulae. You can search for example SIMBAD by coordinates and see if a known object is found :
http://simbad.u-strasbg.fr/simbad/sim-fcoo
Also, you can check in a catalogue of known planetary nebulae in VizieR, for example :
http://vizier.u-strasbg.fr/viz-bin/VizieR-3?-source=V/127A
You can use the Aladin sky atlas :
http://aladin.u-strasbg.fr/java/nph-aladin.pl?frame=downloading
And check if the object is visible in other Halpha surveys (e.g. Image Servers> Others> Supercosmos Halpha)
I also CC this mail to Prof. Parker who has extensive knowledge of planetary nebulae discovery, and can probably assist you further. I am not sure the IAU Astronomical Telegrams are relevant for announcing PNe discoveries
http://www.cbat.eps.harvard.edu/index.html
Best regards,
--
Sebastien Derriere