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 2014 and 2019 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 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:13661 (of which 534 Junior members). Number of Active Individual and Junior Members in the IAU Directory: 11123.


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Name▼ Location NCA adherence
YABUSHITA, Shin A. (Inactive) Japan Japan
YABUTA, Hikaru Japan Japan
YABUUTI, Kiyoshi, Deceased Japan
Yadav, Jagdish Singh India India
Yadav, Vipin Kumar India India
YAGI, Masafumi Japan Japan
YAHAGI, Hideki (Inactive) Japan Japan
Yahil, Amos United States United States
Yair, Yoav Y Israel Israel
Yakhontova, Natalya, Deceased (1896-1994) Russian Federation
Yakovlev, Dmitrij G. Russian Federation Russian Federation
Yakovleva, Valerija A. Russian Federation Russian Federation
Yakut, Kadri Turkey Turkey
Yallop, Bernard D. United Kingdom United Kingdom
Yamada, Shoichi Japan Japan
YAMADA, Masako (Inactive) Japan Japan
YAMADA, Shimako Japan Japan
YAMADA, Toru Japan Japan
YAMADA, Yoshiyuki Japan Japan
YAMAGATA , Tomohiko Japan Japan
YAMAGUCHI , Shichiro (Inactive) Japan Japan
YAMAMOTO, Hiroaki Japan Japan
YAMAMOTO, Satoshi Japan Japan
YAMAMOTO , Masayuki Japan Japan
YAMAMOTO , Tetsuo Japan Japan
YAMAMOTO , Yoshiaki (Inactive) Japan Japan
YAMAMURA , Issei Japan Japan
YAMANAKA, Masayuki Japan Japan
YAMAOKA, Hitoshi Japan Japan
Yamasaki, Tatsuya (Inactive) France France
YAMASAKI, Atsuma Japan Japan
YAMASAKI , Noriko Y. Japan Japan
YAMASHITA, Yasumasa (Inactive) Japan Japan
YAMASHITA , Kojun, Deceased (1941-2015) Japan
YAMASHITA , Takuya Japan Japan
YAMAUCHI, Aya Japan Japan
YAMAUCHI, Makoto Japan Japan
YAMAUCHI , Shigeo Japan Japan
Yamazaki, Akira (Inactive) AA-Country unknown AA-Country unknown
YAN, Haojian (Inactive) China, Nanjing China, Nanjing
YAN, Jun China, Nanjing China, Nanjing
YAN, Lin-shan (Inactive) China, Nanjing China, Nanjing
YAN, Xiaoli (Junior Member) China, Nanjing China, Nanjing
YAN, Yihua China, Nanjing China, Nanjing
YANAGISAWA, Masahisa Japan Japan
Yanamandra-Fisher, Padma A. United States United States
Yang, Jun Sweden Sweden
Yang, Lili China, Nanjing China, Nanjing
YANG, Changgen China, Nanjing China, Nanjing
YANG, Dehua (Inactive) China, Nanjing China, Nanjing
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