Tokyo. With the support and encouragement of Origuchi, Hagihara was able to enter
Tokyo Imperial University and finished his education in astronomy in 1921. In 1923,
Hagihara was appointed associate professor at the university and was sent to
England by the government for 2 years. He stayed mainly at Cambridge University,
where he studied celestial mechanics under H. F. Baker, a mathematician, and
astrophysics and general relativity under A. S. Eddington. After returning to
Tokyo in 1925, Hagihara started to give lectures at Tokyo Imperial University.
From 1928 through 1929 he had another opportunity to stay at Harvard University,
where he studied celestial mechanics under George Burkoff. In 1930, he completed
his doctoral dissertation on the stability of satellite systems.
In 1935, Hagihara was promoted to a full professor of astronomy. In the fall of
1946, Hagihara was appointed Director of the TAO at Mitaka, when the TAO was
almost completely destroyed during the war. He had to start with the reconstruction
of the main buildings, observation rooms, and basic observational instruments. After
several years, the buildings and facilities had mostly been recovered. In 1949, a
coronagraph with a 10 cm aperture was installed on the summit of Mt. Norikura, in
Nagano Prefecture, as the first remote observational facility outside Mitaka. A
200-MHz solar radio telescope was also installed at the Mitaka campus. In 1951, a
new dome equipped with a 30 cm Cooke refractor was completed. In 1957, construction began on a large telescope.
After retirement in 1957, Hagihara moved to Sendai as a professor of astronomy
at Tohoku University and then to Utsunomiya as President of Utsunomiya University from 1961 to 1967. In January 1979, he died suddenly of illness at age
82 (Fig. 3.3).
Fig. 3.3 Hagihara Yusuke,
Vice President of IAU, at
General Assembly in
Hamburg in 1964 (Blaauw
1994)
3.3 Hagihara Yusuke and Celestial Mechanics
49
Tokyo Imperial University and finished his education in astronomy in 1921. In 1923,
Hagihara was appointed associate professor at the university and was sent to
England by the government for 2 years. He stayed mainly at Cambridge University,
where he studied celestial mechanics under H. F. Baker, a mathematician, and
astrophysics and general relativity under A. S. Eddington. After returning to
Tokyo in 1925, Hagihara started to give lectures at Tokyo Imperial University.
From 1928 through 1929 he had another opportunity to stay at Harvard University,
where he studied celestial mechanics under George Burkoff. In 1930, he completed
his doctoral dissertation on the stability of satellite systems.
In 1935, Hagihara was promoted to a full professor of astronomy. In the fall of
1946, Hagihara was appointed Director of the TAO at Mitaka, when the TAO was
almost completely destroyed during the war. He had to start with the reconstruction
of the main buildings, observation rooms, and basic observational instruments. After
several years, the buildings and facilities had mostly been recovered. In 1949, a
coronagraph with a 10 cm aperture was installed on the summit of Mt. Norikura, in
Nagano Prefecture, as the first remote observational facility outside Mitaka. A
200-MHz solar radio telescope was also installed at the Mitaka campus. In 1951, a
new dome equipped with a 30 cm Cooke refractor was completed. In 1957, construction began on a large telescope.
After retirement in 1957, Hagihara moved to Sendai as a professor of astronomy
at Tohoku University and then to Utsunomiya as President of Utsunomiya University from 1961 to 1967. In January 1979, he died suddenly of illness at age
82 (Fig. 3.3).
Fig. 3.3 Hagihara Yusuke,
Vice President of IAU, at
General Assembly in
Hamburg in 1964 (Blaauw
1994)
3.3 Hagihara Yusuke and Celestial Mechanics
49