A1 Astrometry
(Total number of seats: 9)
President:
Christopher S. Jacobs (United States)
VP (elected):
Aletha de Witt (South Africa)
At-large members (elected):
Dana Ioana Casetti (United States), Patrick Charlot (France), Laurent Eyer (Switzerland), Lennart Lindegren (Sweden), Rene Alejandro Mendez Bussard (Chile)
Second-term members:
Jennifer Lynn Bartlett (United States), François Mignard (France)
Advisor (Past President):
Jean Souchay (France)
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A2 Rotation of the Earth
(Total number of seats: 11 Including 3 Non-Voting Representatives)
President:
Zinovy M. Malkin (Russian Federation)
VP (elected):
Alberto Escapa (Spain)
At-large members (elected):
Laura I. Fernandez (Argentina), David A. Salstein (United States), Jean Souchay (France)
Second-term members:
Hadia Hassan Selim (Egypt), Jolanta Nastula (Poland), Shuanggen Jin (China, Nanjing)
Non-Voting Representatives (IERS, IVS & IAG):
Roger Heinkelmann (IAG), Daniella Thaller (IERS), Oleg Titov (IVS)
Advisor (Past President):
Florian Seitz (Germany)
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A3 Fundamental Standards
(Total number of seats: 7)
President:
Susan Gessner Stewart (United States)
VP (elected):
Jose Manuel Ferrándiz (Spain)
At-large members (elected):
Agnès Fienga (France), Wendy K Puatua (United States), Antonia J Wilmot (United Kingdom)
Second-term members:
Steven A. Bell (United Kingdom), Demetrios N. Matsakis (Greece)
Advisor (Past President):
James Lindsay Hilton (United States)
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A4 Celestial Mechanics and Dynamical Astronomy
(Total number of seats: 7)
President:
Christos Efthymiopoulos (Greece)
VP (elected):
Giovanni Federico Gronchi (Italy)
At-large members (elected):
Romina Paula Di Sisto (Argentina), Silvia M. Giuliatti Winter (Brazil), Ireneusz Wlodarczyk (Poland), Li-Yong ZHOU (China, Nanjing)
Second-term members:
Alexandre C. M. Correia (Portugal)
Advisor (Past President):
Alessandra Celletti (Italy)
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B1 Computational Astrophysics
(Total number of seats: 9)
President:
Christian M. Boily (France)
VP (elected):
Michiko FUJII (Japan)
At-large members (elected):
Pratika Dayal (Netherlands), Jonathan Mackey (Ireland), Shazrene S. Mohamed (South Africa), Edouard Audit (France), Gustavo Yepes (Spain)
Second-term members:
Tomoyuki HANAWA (Japan), Dmitri S. Wiebe (Russia)
Advisor (Past President):
Dmitrij Bisikalo (Russia)
*Note: Edouard Audit was added to the OC in December 2021 due to the fact that OC Member Wilhelm Kley passed away in December 2021.
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B2 Data & Documentation
(Total number of seats: 7)
President:
Chenzhou Cui (China, Nanjing)
VP (elected):
Alberto Accomazzi (United States)
At-large members (elected):
Sudhashu Barway (South Africa), David Allan Bohlender (Canada), Cecile Loup (France), Arpad Szomoru (Netherlands) , Ali LUO (China, Nanjing)
Advisor (Past President):
Anja C. Schröder (South Africa)
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B3 Astroinformatics and Astrostatistics
(Total number of seats: 8)
President:
Ashish Mahabal (United States)
VP (elected):
Stefano Andreon (Italy)
At-large members (elected):
Tanuka Chattopadhyay (India), Alberto Garcez de Oliveira Krone Martins (Portugal), Francesca Panessa (Italy), Petr Skoda (Czech Republic), Ricardo Vilalta (United States)
Second-term members:
Didier Fraix-Burnet (France)
Advisor (Past President):
Prajval Shastri (India)
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B4 Radio Astronomy
(Total number of seats: 10)
President:
Carole A. Jackson (Netherlands)
VP (elected):
Patrick Alan Woudt (South Africa)
At-large members (elected):
Paula Benaglia (Argentina), Alberto D. Bolatto (United States), Yuri Y. Kovalev (Russian Federation), Harvey Steven Liszt (United States)
Second-term members:
Tao An (China, Nanjing), Melanie Johnston-Hollitt (New Zealand), Thomas Anne Oosterloo (Netherlands), Cormac Reynolds (Australia)
Advisor (Past President):
Anthony Beasley (United States)
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B5 Laboratory Astrophysics
(Total number of seats: 7)
President:
Paul S. Barklem (Sweden)
VP (elected):
Marie-Lise Dubernet (France)
At-large members (elected):
Perry A. Gerakines (United States), Friedrich Kupka (Austria), Osama M.A. Shalabiea (Egypt), Peng Kian Tan (Thailand)
Second-term members:
Elisabetta Micelotta (Finland)
Advisor (Past President):
Helen J. Fraser (UK)
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B6 Astronomical Photometry and Polarimetry
(Total number of seats: 7)
President:
J. Allyn Smith (United States)
VP:
Stefano Bagnulo (United Kingdom)
At-large members (elected):
Sydney A. Barnes (Germany), Alberto Cellino (Italy), Jamie R Lomax (United States)
Second-term members:
Luca Casagrande (Australia), Claudia Vilega Rodrigues (Brazil)
Advisor (Past President):
Antonio Mario Magalhaes (Brazil)
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B7 Protection of Existing and Potential Observatory Sites
(Total number of seats: 6)
President (second term):
Constance Elaine Walker (United States)
VP (second term):
James D. Lowenthal (United States)
At-large members (elected):
Ramotholo R. Sefako (South Africa), Antonia M. Varela Perez (Spain), Angel Otarola (United States).
Second-term member:
Diane Turnshek (United States)
Advisor (Past President 2015-2018):
Richard Green (United States)
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C1 Astronomy Education and Development
(Total number of seats: 9)
President:
Boonrucksar Soonthornthum (Thailand)
VP (elected):
Urban Eriksson (Sweden)
At-large members (elected):
María del Carmen Argudo Fernandez (Chile), Siramas Komonjinda (Thailand), Amelia Ortiz Gil (Spain), Carmen Aleida Pantoja (United States)
Second-term members:
Rosa Doran (Portugal), Robert Paul Hollow (Australia), Margarita Metaxa (Greece)
Advisor (Past President):
Paulo Sergio Bretones (Brazil)
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C2 Communicating Astronomy with the Public
(Total number of seats: 9)
President:
Oana Monalisa Sandu (Germany)
VP (elected):
Sylvie D. Vauclair (France)
At-large members (elected):
Marieke Baan (Netherlands), Nathalie Brouillet (France), Sze-leung Cheung (Japan), Carolina Johanna Odman (South Africa), Kingsley C. Okpala (Nigeria), Vinicius de Abreu Oliveira (Brazil)
Second-term member:
Caterina Boccato (Italy)
Advisor (Past President):
Richard Tresch Fienberg (United States)
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C3 History of Astronomy
(Total number of seats: 9)
President:
Christiaan L. Sterken (Belgium)
VP (elected):
Sara Jane Schechner (United States)
At-large members (elected):
David M. Baneke (Netherlands), Thomas Arnold Hockey (United States), Ioannis Liritzis (Greece), Virginia Trimble (United States)
Second-term members:
Ileana Chinnici (Italy), Eun Hee Lee (Republic of Korea), Pieter C. van der Kruit (Netherlands)
Advisor (Past President):
Wayne Orchiston (Thailand)
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C4 World Heritage and Astronomy
(Total number of seats: 7)
President:
Juan Antonio Belmonte Aviles (Spain)
VP (elected):
Michael G. Burton (United Kingdom)
At-large members (elected):
Lydia Sonia Cidale (Argentina), Ian S. Glass (South Africa), A. César González-García (Spain), Premana W. Premadi (Indonesia)
Second-term members:
Areg M. Mickaelian (Armenia)
Advisor (Past President):
Gudrun Wolfschmidt (Germany)
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D1 Gravitational Wave Astrophysics
(Total number of seats: 8)
President:
Peter Sven Shawhan (United States)
VP:
Monica Colpi (Italy)
At-large members (elected):
Parameswaran Ajith (India), Masaki ANDO (Japan), Ryan M Shannon (Australia)
Second-term members:
Martin A. Hendry (United Kingdom), Eleonora Troja (United States), Marta Volonteri (France)
Advisor (Past President):
Marica Branchesi (Italy)
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E1 Solar Radiation and Structure
(Total number of seats: 7)
President:
Ilaria Ermolli (Italy)
VP:
Alfio Maurizio Bonanno (Italy)
At-large members (elected):
Kristof Petrovay (Hungary), Paul K Rajaguru (India), Michal Švanda (Czech Republic)
Second-term members:
Santiago Vargas Dominguez (Colombia), Yoichiro Hanaoka (Japan)
Advisor (Past President):
Alexander Kosovichev (United States)
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E2 Solar Activity
(Total number of seats: 8)
President:
Manolis K. Georgoulis (Greece)
VP (elected):
R. T. James McAteer (United States)
At-large members (elected):
D. Shaun Bloomfield (United Kingdom), Rebecca Centeno (United States), Shravan M Hanasoge (India), Hannah Jean Schunker (Australia)
Second-term members:
Ayumi Asai (Japan), Hui LI (China, Nanjing)
Advisor (Past President):
Paul S. Cally (Australia)
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E3 Solar Impact throughout the Heliosphere
(Total number of seats: 5)
President:
Claire Foullon (United Kingdom)
VP:
Masumi Shimojo (Japan)
At-large members:
Peter Thomas Gallagher (Ireland), Weiqun GAN (China, Nanjing), David F. Webb (United States)
Advisor (Past President):
Nicole Vilmer (France)
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E4 Impact of Magnetic Activity on Solar and Stellar Environments
(Total number of seats: 6)
President:
Heidi H. Korhonen (Denmark)
VP:
Dibyendu Nandi (India)
At-large members (elected):
Rim Fares (United Arab Emirates), Emre Isik (Turkey), Silva P. Järvinen (Germany), Krisztián Vida (Hungary)
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F1 Meteors, Meteorites, and Interplanetary Dust
(Total number of seats: 7)
President:
Margaret D. Campbell-Brown (Canada)
VP:
Pavel Koten (Czech Republic)
At-large members (elected):
Althea V Moorhead (United States), John Maurice Campbell Plane (United Kingdom)
Second-term members:
Apostolos Christou (United Kingdom), Gulchehra I. Kokhirova (Tajikistan), Juraj Toth (Slovakia)
Advisor (Past President):
Diego Janches (United States)
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F2 Exoplanets and the Solar system
(Total number of seats: 10)
President (Second term):
Jack J. Lissauer (United States)
VP (elected):
Miriam Rengel (Germany)
At-large members (elected):
Kyriaki I. Antoniadou (Greece), René Heller (Germany), Eiichiro Kokubo (Japan), Alessandro Morbidelli (France)
Second-term members:
Eric E. Mamajek (United States), Rosemary A. Mardling (Australia), Ernesto Palomba (Italy), Aline A. Vidotto (Ireland)
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F3 Astrobiology
(Total number of seats: 8)
President:
Joseph A. Nuth (United States)
VP (elected):
Hervé Cottin (France)
At-large members (elected):
John Robert Brucato (Italy), Misato FUKAGAWA (Japan), Christopher David Impey (United States), Zita Martins (Portugal), Motohide TAMURA (Japan)
Second-term members:
Patricio Michel Rojo (Chile)
Advisor (Past President):
Masatoshi Ohishi (Japan)
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F4 Asteroids, Comets & Transneptunian Objects
(Total number of seats: 8)
President:
Irina N. Belskaya (Ukraine)
VP (elected):
Ricardo Alfredo Gil-Hutton (Argentina)
At-large members:
Jorge M.F. Carvano (Brazil), Masateru ISHIGURO (Republic of Korea), Joseph Ryan Masiero (United States), Patrick Michel (France), Flora Paganelli (United States), Driss Takir (United States)
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G1 Binary and Multiple Star Systems
(Total number of seats: 8)
President:
Christopher Adam Tout (United Kingdom)
VP (elected):
Ilya Mandel (United Kingdom) - from 2022
At-large members (elected):
Henri M.J. Boffin (Germany), R. Elizabeth M. Griffin (Canada), Styliani Stella Kafka (United States), Laszlo Szabados (Hungary), Swetlana Hubrig (Germany)
Second-term members:
Scott William Fleming (United States)
Advisor (Past President):
Virginia Trimble (United States)
*Note: Dimitri Pourbaix (Belgium) was elected in 2021 and then deceased in 2021. The new VP was elected by the Commission (see above).
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G2 Massive Stars
(Total number of seats: 7)
President:
Nicole St-Louis (Canada)
VP (elected):
Lidia M. Oskinova (Germany)
At-large members (elected):
Sylvia Ekstrom Garcia Nombela (Switzerland), Miriam Garcia (Spain), Sergio Simon-Diaz (Spain)
Second-term members:
Fabrice Martins (France), Nidia Morrell (Chile)
Advisor (Past President):
Jorick S. Vink (UK)
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G3 Stellar Evolution
(Total number of seats: 6)
President:
Jacco Th. Van Loon (United Kingdom)
VP (elected):
Franz Kerschbaum (Austria)
At-large members (elected):
Carlos A. Abia (Spain), Xuefei CHEN (China, Nanjing), Šarūnas Mikolaitis (Lithuania)
Second-term member:
Nariman Zeynalabdi Ismayilov (Republic of Azerbaijan)
Advisor (Past President):
Marc Howard Pinsonneault (United States)
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G4 Pulsating Stars
(Total number of seats: 8)
President:
Robert Szabo (Hungary)
VP (elected):
Jadwiga Daszynska-Daszkiewicz (Poland)
At-large members (elected):
Maria Pia Di Mauro (Italy), Steven D. Kawaler (United States), Marcella Marconi (Italy), Konstanze Zwintz (Austria)
Second-term members:
Victoria Antoci (Denmark), Daniel Huber (United States)
Advisor (Past President):
Jaymie Matthews (Canada)
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G5 Stellar & Planetary Atmospheres
(Total number of seats: 8)
President:
Chris Sneden (United States)
VP (elected):
Simon Jeffery (United Kingdom)
At-large members (elected):
Simone Daflon (Brazil), Oleg Kochukhov (Sweden), Mudumba Parthasarathy (India)
Second-term members:
Daniela Korcakova (Czech Republic), Gautier Mathys (Chile), Klaus Werner (Germany)
Advisor (Past President):
Carlos Allende Prieto (Spain)
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H1 Local Universe
(Total number of seats: 8)
President:
Gražina Tautvaisiene (Lithuania)
VP (elected):
Matthias Steinmetz (Germany)
At-large members (elected):
Andrea Verónica Ahumada (Argentina), Jens Kauffmann (United States), Panos A. Patsis (Greece), Silvia Pellegrini (Italy), Priya Hasan Shah (India)
Second-term members:
Wako Aoki (Japan
Advisor (Past President):
Dante Minniti (Chile)
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H2 Astrochemistry
(Total number of seats: 7)
President:
Paola Caselli (Germany)
VP:
Jes Kristian Jørgensen (Denmark)
At-large members (elected):
Helen J. Fraser (United Kingdom), Dariusz C. Lis (United States), Dmitry A. Semenov (Germany)
Second-term members:
Wolf Dietrich Geppert (Sweden), Karin I. Oberg (United States)
Advisor (Past President):
Edwin A. Bergin (United States)
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H3 Planetary Nebulae
(Total number of seats: 6)
President:
Orsola De Marco (Australia)
VP:
Magda Arnaboldi (Germany)
At-large members (elected):
Isabel R. G. Aleman (Brazil), Bruce Balick (United States)
Second-term members:
David Jones (Spain), Toshiya Ueta (United States)
Advisor (Past President):
Albert Zijlstra (United Kingdom)
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H4 Stellar clusters throughout Cosmic Space and Time
(Total number of seats: 8)
President:
Francesca D’Antona (Italy)
VP (elected):
Florent Renaud (Sweden)
At-large members (elected):
Randa S. Asa'd (United Arab Emirates), Angela Bragaglia (Italy), Ignacio Negueruela (Spain)
Second-term members:
Andrea K. Dupree (United States), Eric W. Peng (China, Nanjing), Andrés Eduardo Piatti (Argentina)
Advisor (Past President):
Amanda I. Karakas (Australia)
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J1 Galaxy Spectral Energy Distributions
(Total number of seats: 7)
President:
Nikolaos D. Kylafis (Greece)
VP (elected):
Ralf Siebenmorgen (Germany)
At-large members (elected):
Elisabete da Cunha (Australia), Ignacio P. Ferreras (Spain), Samir Salim (United States)
Second-term members:
Médéric Boquien (Chile), Michael James Isles Brown (Australia)
Advisor (Past President):
Cristina Carmen Popescu (United Kingdom)
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J2 Intergalactic Medium
(Total number of seats: 7)
President (elected):
Céline Peroux (France)
VP (elected):
Benedetta Ciardi (Germany)
At-large members (elected):
Wei Cui (China, Nanjing), Simon Morris (United Kingdom), Emma V Ryan-Weber (Australia), Matteo Viel (Italy)
Second-term members:
James Stewart Bolton (United Kingdom)
Advisor (Past President):
Valentina D’Odorico (Italy)
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J3 Galaxies at the Epoch of Reionisation
(Total number of seats: 6)
President:
Denis Burgarella (France)
VP:
Laura Pentericci (Italy)
At-large members (elected):
Valentina D'Odorico (Italy), Akio INOUE (Japan), Roser Pello (France), Kanak Saha (India)
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X1 Supermassive Black Holes, Feedback and Galaxy Evolution
(Total number of seats: 8)
President:
Christine Jones (United States)
VP:
Jong-Hak WOO (Republic of Korea)
At-large members (elected):
Myriam Gitti (Italy), Isabel Marquez (Spain), Paolo Tozzi (Italy), Jan M. Vrtilek (United States)
Second-term members:
Daniel Michael Crenshaw (United States), Raffaella Morganti (Netherlands)
Advisor (Past President):
Thaisa Storchi-Bergmann (Brazil)
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X2 Solar System Ephemerides
(Total number of seats: 6)
President:
Fabrizio Bernardi (Italy)
VP:
Ryan S Park (United States)
At-large members (elected):
Davide Farnocchia (United States), Dmitry Pavlov (Russian Federation)
Second-term members:
Matthew Jon Holman (United States), Marco Micheli (Italy)
Advisor (Past President):
William M. Folkner (United States)
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