| Visitor | Institute | Contact person | Dates of visit | Phone ext. / office |
| Bram Acke | Institute of Astronomy, KU Leuven | M. van den Ancker | 16.2. - 13.3.09 | ext. 6102 / room 511
|
| Itziar Aretxaga | INAOE, Puebla, Mexico | P. Andreani | 22.6. - 18.7.09 | ext. 6102 / room 511
|
| Paola Caselli | Leeds University | L. Testi | 27.7. - 14.8.09 | ext. 6102 / room 511
|
| Luc Dessart | Princeton University | B. Leibundgut | 29.6. - 31.7.09 | ext. 6842 / room 520
|
| Kambiz Fathi | Stockholm University | N. Neumayer | 13.7. - 14.8.09 | ext. 6492 / room 514
|
| Kenneth Freeman | Mt. Stromlo Observatory | M. Arnaboldi | 16.11. - 14.12.09 | ext. 6638 / room 514
|
| Maria Cruz Galvez Ortiz | University of Hertfordshire, UK | F. Comeron | 02.5. - 30.5.09 | ext. 6842 / room 520
|
| Gretchen Harris | University of Waterloo, Ontario, CA | H. Kuntschner | 03.5. - 30.5.09 | ext. 6638 / room 514
|
| William E. Harris | McMaster University, Hamilton, Ontario, CA | H. Kuntschner | 03.5. - 30.5.09 | ext. 6492 / room 514
|
| Craig Harrison | CTIO | H. Kuntschner | 25.9. - 25.10.09 | ext. 6842 / room 520
|
| David Hughes | INAOE, Puebla, Mexico | P. Andreani | 22.6. - 18.7.09 | ext. 6447 / room 511
|
| Zsolt Kovari | Konkoly Observatory, Budapest | M. Wittkowski, H. Korhonen | 19.1. - 30.1.09 | ext. 6102 / room 511
|
| Henny Lamers | Astron. Inst. Utrecht | M. Kissler-Patig | 17.5. - 10.6.09 | ext. 6102 / room 511
|
| Francesca Matteucci | University of Trieste | H. Kuntschner | 02.3. - 31.3.09 | ext. 6492 / room 514
|
| Antonella Natta | INAF - Astrophys. Obs. Arcetri | L. Testi | 8.10. - 8.11.09 | ext. 6638 / room 514
|
| Elena Pancino | Osservatorio Astronomico - INAF, Bologna | M. Rejkuba | 15.4. - 16.5.09 | ext. 6102 / room 511
|
| Elena Pian | INAF, Trieste Astron. Obs. | F. Patat, P. Møller | 15.6. - 6.8.09 | ext. 6842 / room 520
|
| Thomas Puzia | Herzberg Inst. of Astrophys, NRC | M. Kissler-Patig | 30.11. - 20.12.09, and 4.1. - 15.1.10 | ext. 6102 / room 511
|
| Marc Sarzi | Univ. Hertfordshire, UK | E. Emsellem | 2.11. - 22.11.09, and 7.2. - 25.2.10 | ext. 6102 / room 511
|
| John Silverman | ETH Zurich | V. Mainieri, P. Rosati | 6.7. - 31.7.09 | ext. 6492 / room 514
|
| Veronica Strazzullo | NRAO, Socorro | P. Rosati | 29.9. - 24.11.09 | ext. 6447 / room 511
|
| Satoko Takahashi | Academia Sinica, Taipeh | P. Teixeira | 31.8. - 30.9.09 | ext. 6102 / room 511
|
| Jonathan C. Tan | University of Florida | L. Testi | 27.7. - 14.8.09 | ext. 6447 / room 511
|
| Hien Tran | Keck Observatory | R. Fosbury | 06.4. - 17.5.09 | ext. 6492 / room 514
|
| Yiannis Tsamis | University College London | J. Walsh | 07.1. - 27.2.09 | ext. 6492 / room 514
|
| Ralph Tüllmann | Harvard-Smithsonian Center for Astrophysics | M. Rosa | 20.4. - 21.6.09 | ext. 6842 / room 520
|
| Malcolm Walmsley | INAF - Astrophys. Obs. Arcetri | H. Kuntschner | 8.10. - 8.11.09 | ext. 6492 / room 514
|
| Michael Weber | AIP Potsdam | M. Wittkowski | 04.5. - 31.5.09 | ext. 6447 / room 511
|
