Individual and Junior Members

Professional scientists whose research is directly relevant to some branch of astronomy are eligible to apply as Individual Members. Individual Members are, normally, admitted by the Executive Committee on the proposal of a National Member.

Junior scientists who have completed their PhD studies between 2015 and 2020 and who are in the initial phase of the career of a professional researcher in some branch of astronomy or a related field may be admitted to the Union by the Executive Committee as Junior Members, for a period not exceeding 6 years.

Individual and Junior Members listed in the IAU Directory have a valid, public email, and are affiliated to at least one Division. They are labeled as "Active Members". For corrections and updates, please contact Any members remaining Inactive for more than 3 years will be removed from the IAU lists.

Additionally, while only Active Members are listed in the IAU Directory, you may still search for Active, Inactive or Deceased Members in the search field to your right.

For gender statistics click here.

Total number of IAU Individual and Junior members: 12437 (of which 1084 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12110.


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Name Location▼ NCA adherence
Nuza, Sebastián Ernesto Argentina Argentina
Navone, Hugo Daniel Argentina Argentina
Nuevo, Federico Alberto (Junior Member) Argentina Argentina
Nikoghosyan, Elena H Armenia Armenia
Nikoghossian, Arthur G. Armenia Armenia
Norris, John Australia Australia
Norris, Raymond P. Australia Australia
Nanayakkara, Themiya (Junior Member) Australia Netherlands
Nowotny-Schipper, Walter Austria Austria
Nothnagel, Axel Austria Germany
Noels, Arlette Belgium Belgium
Naze, Yael Belgium Belgium
Neves de Araujo, Jose Carlos Brazil Brazil
Nemmen, Rodrigo Brazil Brazil
Nicolaci da Costa, Luiz Alberto Brazil Brazil
Nedialkov, Petko Lubenov Bulgaria Bulgaria
Nikolov, Grigor (Junior Member) Bulgaria Bulgaria
Nelson, Robert Howard Canada Canada
Navarro, Julio Fernando Canada Canada
Nadeau, Daniel Canada Canada
Naud, Marie-Eve (Junior Member) Canada Canada
Nelson, Lorne A. Canada Canada
Normandeau, Magdalen Canada Canada
Naylor, David A. Canada Canada
Nemec, James Canada Canada
Ngo, Henry Hoang Khoi (Junior Member) Canada Canada
Nantais, Julie Beth Chile Chile
Nyman, Lars-Aake Chile Chile
Nikoli'c, Silvana Chile Chile
Nitschelm, Christian Henri Robert Chile Chile
NING, Zongjun China, Nanjing China, Nanjing
NAKASHIMA, Jun-ichi China, Nanjing Russian Federation
NING, Xiaoyu China, Nanjing China, Nanjing
NIE, Jundan (Junior Member) China, Nanjing China, Nanjing
NG, Kin-Wang China, Taipei China, Taipei
NGEOW, Chow Choong China, Taipei China, Taipei
Núñez, Luis A Colombia Colombia
Nickeler, Dieter H. Czech Republic Czech Republic
Novotný, Jan Czech Republic Czech Republic
Nissen, Poul Erik Denmark Denmark
Novikov, Igor D. Denmark Denmark
Nordlund, Åke Denmark Denmark
Naselsky, Pavel D. Denmark Denmark
Nordstrom, Birgitta Denmark Denmark
Nouh, Mohamed Egypt Egypt
Nashed, Gamal Gergess Lamee Egypt Egypt
Nugis, Tiit Estonia Estonia
Negu, Seblu Humne (Junior Member) Ethiopia Ethiopia
Näränen, Jyri Finland Finland
Nilsson, Kari J. Finland Finland
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