was a Japanese essayist and astronomer. He was a brother of the novelist Nojiri Haruhikoˀ, whose pen name was Osaragi Jirō.

In 1930 he coined the Japanese word for the then-newly-discovered dwarf planet Pluto. The name was then borrowed into Chinese and Korean.

See also Osaragi Jirō [information on family] 3008 Nojiri (main-belt asteroid)

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