Astronomy

The defining characteristic of the Department of Astronomy is its independent structure, dedicated exclusively to the study of the universe—from the origins of the cosmos itself to galaxies, stars, exoplanets, and the vast history and intricate structure of astronomical phenomena.

Students receive a comprehensive education not only in the fundamental physics and mathematics that underpin astronomy but also in practical techniques such as optical-infrared and radio observations, computer simulations, and the programming skills essential for data analysis.

For those who have set their sights on a career in astronomy and space sciences, entering the Department of Astronomy offers a distinct advantage: early and extensive exposure to an unparalleled breadth of specialized lectures and exercises in the field.

【Academic features】

Japan’s Largest Program in Astronomy and Space Science

Among the natural sciences, astronomy stands apart as the discipline that seeks to understand the grandest research subject of all—the universe itself. Only a few universities in Japan maintain an independent department dedicated to this pursuit, making the existence of the Department of Astronomy a rarity and a privilege.

Modern astronomy, often referred to as astrophysics, primarily employs the principles of physics to unravel the mysteries of the cosmos. Accordingly, our department collaborates closely with groups within the Department of Physics that study the universe, as well as with the Departments of Earth and Planetary Physics and the Department of Biological Sciences through exoplanetary astronomy, deepening interdisciplinary ties.

The Department of Astronomy traces its lineage to the Tokugawa shogunate’s Astronomy Agency, the earliest predecessor of the University of Tokyo, and today stands at the forefront of astronomical science and technology. Our faculty includes distinguished researchers specializing in optical-infrared astronomy, radio astronomy, and theoretical astronomy, creating an ideal environment where scholars are united by a common passion for astronomical exploration.

At the graduate level, our scope expands further to include gravitational wave astronomy, X-ray astronomy, and a wide array of observational wavelengths and research areas. As Japan’s largest graduate program in astronomy and space sciences, the department consistently produces world-class research at the cutting edge of discovery.

Since astronomy is fundamentally rooted in physics, students first establish a strong foundation by mastering the essential principles of physics before advancing their knowledge through specialized lectures, exercises, and practical training in astronomy.

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