The candidates are said to be "published" when they are the object of an official publication in VizieR and in the CDS of the University of Strasbourg.
The Planetary Nebulae .net website offers all the useful and practical information about the planetary nebulae (candidates),
how to apply for a new discovery and how to confirm the candidates. If you would like to contribute to the website, please visit the Data Gathering page and contact us.
Contributors:
Pascal Le Dû - Thomas Petit - Olivier Garde - Nicolas Petit - Trygve Prestgard - Jean-Baptiste Feldmann -
Lionel Mulato - Sakib Rasool - Dana Patchick - Xavier Strottner - Jean-Baptiste Auroux