| Visitor | Institute | Contact person | Dates of visit | Phone ext. | Office | 
|---|
| Holger Baumgardt | University of Queensland, Australia | M. Hilker | 12.12. - 23.12.2016 and 09.01. - 20.01.2017 | 6233 / 6327 | E.5.20 | 
| Francesco Ferraro | University of Bologna, Italy | E. Valenti, G. Beccari | 01.06. - 31.07. | 6658 | C.2.06 | 
| Jacopo Fritz | UNAM, Instituto de Astrofisica y Radioastronomia, Morelia, Mexico | E. Hatzminaglou | 01.08. - 31.08. | 6807 / 6808 | E.5.18 | 
| Wolfgang Gieren 
 | Universidad de Concepcion, Chile 
 | B. Leibundgut | 03.07. - 29.07. | 6125 | E.4.22 | 
| Pavel Kroupa | Helmholtz-Institut fuer Strahlen- und Kernphysik, University of Bonn, Germany & Faculty of Mathematics and Physics, Astronomical Institute, Charles University in Prague, Czech Republic | M. Hilker, G. Beccari | 01.09 - 29.10. | 6327 | E.5.20 | 
| Matthew Lehnert | IAP, Paris, France 
 | C. De Breuck | 06.03. - 24.03. and 29.05. - 16.06. | 6125 | E.4.22 
 | 
| Witold Maciejewski | Liverpool John Moores University, UK | E. Emsellem, L. Coccato | 03.04. - 18.05. | 6102 | E.5.11 | 
| David Martinez-Delgado | Astronomisches Rechen-Institut, University of Heidelberg, Germany | G. Beccari, M. Hilker | 01.09 - 30.09 | 6807 | E.5.18 | 
| Ana Monreal-Ibero | GEPI, Observatoire de Paris, France | J. Walsh 
 | 16.01. - 25.02. | 6807 / 6808 | E.5.18 | 
| Elena Pancino | INAF - Astrophys. Obs. Arcetri, Italy 
 | M.Rejkuba | 06.03. - 14.04. | 6807 / 6808 | E.5.18 | 
| Padelis Papadopoulos 
 | Cardiff University, UK | C. De Breuck, Z.-Y. Zhang, P. Andreani | 01.06. - 30.06. and 25.10.2016 - 28.02.2017 | 6233 / 6327 | E.5.20 | 
| Thomas Puzia | Pontificia Universidad Catolica, Santiago, Chile | M.Hilker | 27.06. - 03.08. |  | C.2.23 | 
| Hadi Rahmani 
 | LAM Marseille, France | P. Møller, J. Vernet | 04.10.2016 - 03.04.2017 | 6102 | E.5.11 | 
| Gioia Rau | University of Vienna, Austria 
 | M. Wittkowski 
 | 10.04. - 23.06. | 6858 | E.4.22 | 
| Denise Rocha Goncalves | Obs. do Valongo - UFRJ, Brazil | H. Boffin | 16.02. - 30.03. | 6807 / 6808 | E.5.18 | 
| Peter Teuben | University of Maryland, USA | R. Warmels, T. Stanke, E. Emsellem | 02.11.2017 - 02.01. 2018 | 6102 | E.5.11 |