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: 12744 (of which 1224 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12379.


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Name Location▼ NCA adherence
YANG, Lili China, Nanjing China, Nanjing
YE, Shuhua China, Nanjing China, Nanjing
YE, Binxun China, Nanjing China, Nanjing
YAO, Yongqiang China, Nanjing China, Nanjing
YANG, Hsiang-Yi Karen China, Taipei China, Taipei
YEN, Hsi-Wei China, Taipei China, Taipei
YU, Po-Chieh China, Taipei China, Taipei
YO, Hwei-Jang China, Taipei China, Taipei
youssef, manal Hanafi Ahmed Egypt Egypt
YANG, Yanbin France France
Yeo, Kok Leng Germany Germany
Yadav, Vipin Kumar India India
Yadav, Jagdish Singh India India
Yadav, Nitin India India
Yadav, Sushil (Junior Member) India India
Yair, Yoav Y Israel Israel
Yaron, Ofer Israel Israel
YAMADA, Shimako Japan Japan
YASUDA, Naoki Japan Japan
YAMADA, Shoichi Japan Japan
Yuma, Suraphong Japan Thailand
YOSHIDA, Takashi Japan Japan
YAMADA, Yoshiyuki Japan Japan
YOKOYAMA, Takaaki Japan Japan
YOSHIOKA, Satoshi Japan Japan
YOSHIOKA, Kazuo Japan Japan
YOSHIDA, Michitoshi Japan Japan
YAMAGATA, Tomohiko Japan Japan
YAGI, Masafumi Japan Japan
YAMAMOTO, Hiroaki Japan Japan
YAMAMOTO, Satoshi Japan Japan
YAMAMOTO , Masayuki Japan Japan
YAMAMURA , Issei Japan Japan
YAMANAKA, Masayuki Japan Japan
YAMASHITA , Takuya Japan Japan
YAMAUCHI , Shigeo Japan Japan
YANAGISAWA, Masahisa Japan Japan
YANO , Taihei Japan Japan
YUASA, Manabu Japan Japan
YOSHIDA, Shin'ichirou Japan Japan
YOKOSAWA, Masayoshi Japan Japan
YONEKURA, Yoshinori Japan Japan
YUJI , Ikeda Japan Japan
YAMAUCHI, Makoto Japan Japan
YANO, Hajime Japan Japan
YAMADA, Toru Japan Japan
YOSHIMURA, Hirokazu Japan Japan
YAMASAKI, Atsuma Japan Japan
YAMAOKA, Hitoshi Japan Japan
YONEHARA, Atsunori Japan Japan
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