Current Position
Director, Ishigakijima Astronomical Observatory
Lecturer, Public Relations Center, National Astronomical Observatory of Japan (NAOJ)
About
Ko Arimatsu (有松 亘)
Astronomer, astrophotographer, and scientific illustrator
Born in 1987 in Gunma Prefecture, Japan
Research Topics
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Exploring trans-Neptunian objects and the Oort cloud through stellar occultations
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Exploring tiny outer solar system bodies through impact flashes on the giant planets
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Development and application of compact, high-cadence optical observation systems
Education
- Mar 2006
- Graduated from Gunma Prefectural Maebashi High School
- Apr 2006
- Entered the University of Tokyo (College of Arts and Sciences, Natural Sciences I)
- Mar 2010
- B.Sc., Department of Astronomy, Faculty of Science, the University of Tokyo
- Apr 2010
- Entered the master's program, Department of Astronomy, Graduate School of Science, the University of Tokyo
- Mar 2012
- M.Sc., the University of Tokyo
- Apr 2012
- Entered the doctoral program, Department of Astronomy, the University of Tokyo
- Mar 2015
- Ph.D. in Science, the University of Tokyo
Employment
- Apr 2015
- JSPS Research Fellow (PD), Public Relations Center, National Astronomical Observatory of Japan (until Mar 2018)
- Sep 2018
- Researcher, Astronomical Observatory, Graduate School of Science, Kyoto University (until Dec 2020)
- Jan 2021
- Program-Specific Assistant Professor, The Hakubi Center for Advanced Research, Kyoto University (until Nov 2025)
- Dec 2025
- Lecturer, Public Relations Center, National Astronomical Observatory of Japan / Director, Ishigakijima Astronomical Observatory (present)