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
Úbeda, Leonardo United States United States
Ubertini, Pietro Italy Italy
Udalski, Andrzej Poland Poland
Udaya, Shankar N. India India
Uddin, Wahab India India
ud-Doula, Asif United States United States
Udovichenko, Sergei N. Ukraine Ukraine
Udry, Stephane Switzerland Switzerland
UEDA, Haruhiko Japan Japan
UEDA , Yoshihiro Japan Japan
UEMURA , Makoto Japan Japan
UENO, Munetaka Japan Japan
Ueta, Toshiya United States United States
Ugolnikov, Oleg Stanislavovich Russian Federation Russian Federation
UJIHARA, Hideki Japan Japan
UKITA , Nobuharu Japan Japan
Ulla Miguel, Ana Maria Spain Spain
Ulmer, Melville P. United States United States
Ulrich, Marie-Helene D. Germany Germany
Ulrich, Roger K. United States United States
Ulubay Sıddıki, Ayse Turkey Turkey
Ulvestad, James Scott United States United States
Ulyanov , Oleg Mihajlovich Ukraine Ukraine
Umana, Grazia Italy Italy
UMEDA, Hideyuki Japan Japan
UMEMOTO , Tomofumi Japan Japan
UMEMURA , Masayuki Japan Japan
Unda-Sanzana, Eduardo Chile Chile
Unruh, Yvonne C United Kingdom United Kingdom
Unwin, Stephen C. United States United States
Uomoto, Alan United States United States
URAKAWA, Seitaro Japan Japan
Urama, Johnson O. Nigeria Nigeria
URATA, Yuji China, Taipei China, Taipei
Urban, Sean E. United States United States
Urbanik, Marek Poland Poland
Ureche, Vasile Romania Romania
Urov sevi'c, Dejan V. Serbia, Republic of Serbia, Republic of
Urquhart, James Stuart Australia Australia
Urrutia, Tanya C Germany Germany
Urry, Claudia Megan United States United States
Usenko, Igor Ukraine Ukraine
Usher, Peter D. United States United States
Uslenghi, Michela Italy Italy
Uson, Juan M. France France
Usoskin, Ilya G. Finland Finland
Usov, Vladimir V. Israel Israel
Usowicz, Jerzy Bogdan Poland Poland
USUDA, Tomonori United States United States
Utrobin, Victor P. Russian Federation Russian Federation
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Gender Distribution in the IAU

30-35 35 71 33.0 67.0
35-40 174 387 31.0 69.0
40-45 234 696 25.2 74.8
45-50 242 862 21.9 78.1
50-55 241 1035 18.9 81.1
55-60 200 947 17.4 82.6
60-65 167 903 15.6 84.4
65-70 138 847 14.0 86.0
70-75 122 867 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

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