Individual Members

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

Individual 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 10 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.

Total number of IAU members:12376. Number of Active Individual Members in the IAU Directory: 9828

These statistics refer to Active members. Please note also that these numbers to not include IAU members for which we do not have a date of birth.

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

Name Location NCA adherence
Oberg, Karin I United States United States
Oberoi, Divya India India
Oberst, Jürgen Germany Germany
Oberst, Thomas E United States United States
Obregón Díaz, Octavio José Mexico Mexico
Obreschkow, Danail Australia Australia
O'Brian, Thomas R. United States United States
Obridko, Vladimir N. Russian Federation Russian Federation
O'Brien, Paul Thomas United Kingdom United Kingdom
O'Brien, Tim United Kingdom United Kingdom
O'Byrne, John W. Australia Australia
Ochsenbein, François France France
O'Connell, Robert F. United States United States
O'Connell, Robert West United States United States
Ocvirk, Pierre France France
O'Dea, Christopher P. United States United States
Odell, Andrew P. United States United States
O'Dell, Charles R. United States United States
O'Dell, Stephen L. United States United States
Ödman, Carolina Johanna South Africa South Africa
O'Donoghue, Aileen A United States United States
Oemler Jr, Augustus United States United States
Oesch, Pascal A Switzerland Switzerland
Oey, Sally United States United States
Ofek, Eran Oded Israel Israel
Ofir, Aviv Germany Germany
Ofman, Leon United States United States
Ogando, Ricardo Lourenço Correia Brazil Brazil
OGAWA , Hideo Japan Japan
OGAWARA , Yoshiaki Japan Japan
Ogłoza, Waldemar Poland Poland
OGURA , Katsuo Japan Japan
OH, Kap Soo Korea, Rep of Korea, Rep of
OH, Kyu-Dong Korea, Rep of Korea, Rep of
OH, Sang Hoon Korea, Rep of Korea, Rep of
OH, Suyeon Yelena Korea, Rep of Korea, Rep of
Ohashi, Nagayoshi United States United States
OHISHI, Masatoshi Japan Japan
Ohnaka, Keiichi Chile Chile
OHNISHI , Kouji Japan Japan
OHTA , Kouji Japan Japan
OHTANI, Hiroshi Japan Japan
OHTSUKI , Keiji Japan Japan
Oja, Heikki Finland Finland
Oja, Tarmo Sweden Sweden
Ojha, Devendra Kumar India India
Ojha, Roopesh United States United States
Oka, Takeshi United States United States
OKA, Tomoharu Japan Japan
OKAMOTO, Isao Japan Japan
  1 | 2 | 3 | 4 Next »
Showing 1 to 50 of 167

Gender Distribution in the IAU

30-35 35 71 33.0 67.0
35-40 174 387 31.0 69.0
40-45 233 696 25.1 74.9
45-50 242 862 21.9 78.1
50-55 242 1034 19.0 81.0
55-60 200 949 17.4 82.6
60-65 167 902 15.6 84.4
65-70 138 847 14.0 86.0
70-75 122 868 12.3 87.7
75-80 83 673 11.0 89.0
80-85 35 276 11.3 88.7
85-90 12 132 8.3 91.7
90-95 4 51 7.3 92.7
95-100 1 6 14.3 85.7

Search Individual Members