Svetlana Gerasimenko
Soviet and Tajikistani astronomer (1945–2025)
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Svetlana Ivanovna Gerasimenko (Russian: Светлана Ивановна Герасименко; Ukrainian: Світлана Іванівна Герасименко; 23 February 1945 – 8 April 2025) was a Soviet and Tajikistani astronomer and discoverer of comet 67P/Churyumov–Gerasimenko.
23 February 1945
Svetlana Gerasimenko | |
|---|---|
| Светлана Герасименко Світлана Герасименко | |
Gerasimenko in 2014 | |
| Born | Svetlana Ivanovna Gerasimenko 23 February 1945 |
| Died | 8 April 2025 (aged 80) |
| Citizenship | Soviet Union, Tajikistan |
| Alma mater | Taras Shevchenko National University of Kyiv |
| Known for | Comet discovery |
| Scientific career | |
| Fields | Astronomy |
Early life
Gerasimenko was born in the Ukrainian SSR in 1945. She was an ethnic Ukrainian; her father was Ukrainian and her mother Polish.[1]
Discovery of comet 67P/Churyumov–Gerasimenko

On 11 September 1969 Gerasimenko, while working at the Alma-Ata Astrophysical Institute near Almaty, the then-capital city of the Kazakh Soviet Socialist Republic, Soviet Union photographed the comet 32P/Comas Solà using a 50-cm Maksutov telescope.[2]
After she returned to her home institute, Klim Ivanovych Churyumov of the Kyiv National University's Astronomical Observatory examined this photograph and found a cometary object near the edge of the plate, but assumed that this was Comas Solà.[3][4] On 22 October, about a month after the photograph was taken, he discovered that the object could not be Comas Solà, because it was 2–3 degrees off the expected position. Further scrutiny produced a faint image of Comas Solà at its expected position on the plate, thus proving that the other object was a different comet.[3] By looking through all the material collected they found this new object on four more plates, dated 9 and 21 September.[4]
Death
Gerasimenko died on 8 April 2025, at the age of 80.[5]
Honors
Named after her
- Periodic comet 67P/Churyumov–Gerasimenko
- Minor planet 3945 Gerasimenko