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: 12776 (of which 1224 are Junior members). Number of Active Individual and Junior Members in the IAU Directory: 12403.


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Name Location▼ NCA adherence
YAN, Jingzhi China, Nanjing China, Nanjing
YUAN, Qirong China, Nanjing China, Nanjing
YANG, Ji China, Nanjing China, Nanjing
YAN, Lulu (Junior Member) China, Nanjing China, Nanjing
YANG, Fan (Junior Member) China, Nanjing China, Nanjing
YAO, Qijun China, Nanjing China, Nanjing
YO, Hwei-Jang China, Taipei China, Taipei
YEN, Hsi-Wei China, Taipei China, Taipei
YU, Po-Chieh China, Taipei China, Taipei
YANG, Hsiang-Yi Karen China, Taipei China, Taipei
youssef, manal Hanafi Ahmed Egypt Egypt
YANG, Yanbin France France
Yeo, Kok Leng Germany Germany
Yadav, Sushil (Junior Member) India India
Yadav, Vipin Kumar India India
Yadav, Jagdish Singh India India
Yaron, Ofer Israel Israel
Yair, Yoav Y Israel Israel
YONETOKU, Daisuke Japan Japan
YAMAUCHI, Aya Japan Japan
YOSHIOKA, Kazuo Japan Japan
YASUTAKE, Nobutoshi Japan Japan
YANO , Taihei Japan Japan
YAMANAKA, Masayuki Japan Japan
YANAGISAWA, Masahisa Japan Japan
YOICHIRO , Suzuki Japan Japan
YAMAUCHI , Shigeo Japan Japan
YOKOYAMA, Jun'ichi Japan Japan
YOKOSAWA, Masayoshi Japan Japan
YOSHIDA, Hiroshi Japan Japan
YOSHIDA , Atsumasa Japan Japan
YOSHIDA, Haruo Japan Japan
YOSHIDA , Shigeomi Japan Japan
YOSHINO, Kouichi Japan Japan
YOSHII, Yuzuru Japan Japan
YOSHIKAWA, Kohji Japan Japan
YOSHIKAWA, Makoto Japan Japan
YOSHIDA, Shin'ichirou Japan Japan
YASUI, Chikako Japan Japan
YAMASHITA , Takuya Japan Japan
YONEKURA, Yoshinori Japan Japan
YAMASAKI , Noriko Y. Japan Japan
YAMAMURA , Issei Japan Japan
YAMAMOTO , Masayuki Japan Japan
YAMAMOTO, Satoshi Japan Japan
YAMADA, Shimako Japan Japan
YUASA, Manabu Japan Japan
YUJI , Ikeda Japan Japan
YUMIKO , Oasa Japan Japan
YUI, Yukari Y. Japan Japan
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