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 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 Individual and Junior members: 14106 (of which 719 Junior members). Number of Active Individual and Junior Members in the IAU Directory: 11606.


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Name▼ Location NCA adherence
Hoekstra, Hendrik Netherlands Netherlands
Hönig, Sebastian F United Kingdom United Kingdom
Hoffman, Jeffrey Alan United States United States
Hoffman, Jennifer L. United States United States
Hoffmann, Susanne M (Junior Member) Germany Germany
Hofmann, Wilfried Germany Germany
Hofner, Peter United States United States
Höfner, Susanne Sweden Sweden
Hogan, Craig J. United States United States
Högbom, Jan A. Sweden Sweden
Hogg, David E. United States United States
Hohenkerk, Catherine Y. United Kingdom United Kingdom
Hojaev, Alisher S. Uzbekistan Uzbekistan
Holberg, Jay B. United States United States
Holbrook, Jarita C South Africa South Africa
Holder, Gilbert United States United States
Holdsworth, Daniel L (Junior Member) United Kingdom United Kingdom
Holgado Alijo, Gonzalo (Junior Member) Spain Spain
Hollenbach, David John United States United States
Holley-Bockelmann, Jocelyn Kelly United States United States
Hollow, Robert Paul Australia Australia
Holloway, Nigel J. United Kingdom United Kingdom
Hollowell, David Earl United States United States
Hollweg, Joseph V. United States United States
Holm, Nils G. Sweden Sweden
Holman, Gordon D. United States United States
Holman, Matthew Jon United States United States
Holmberg, Gustav Sweden Sweden
Holmgren, David E. Canada Canada
Holt, Stephen S. United States United States
Holz, Daniel United States United States
Homan, Ward (Junior Member) Belgium Belgium
Homeier, Derek Germany Germany
Honda, Satoshi Japan Japan
HONDA, Mitsuhiko Japan Japan
Honeycutt, R. Kent United States United States
HONG, Sungwook E. Korea, Rep of Korea, Rep of
HONG, Xiaoyu China, Nanjing China, Nanjing
HONG, Zhang China, Nanjing China, Nanjing
Honková, Michaela (Junior Member) Czech Republic Czech Republic
HONMA , Mareki Japan Japan
Hood, Alan W. United Kingdom United Kingdom
Hood, Carol United States United States
Hopkins, Andrew M. Australia Australia
Hopp, Ulrich Germany Germany
Hora, Joseph Lee United States United States
Horácek, Jiri Czech Republic Czech Republic
HORAGUCHI , Toshihiro Japan Japan
Hörandel, Jörg Netherlands Netherlands
Horch, Elliott P. United States United States
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