Nasu is asteroid #11323 and also known as 1995 QC2. Nasu was discovered by the Japanese amateur astronomers Endate Kin (円館 金) and Watanabe Kazurō (渡辺 和郎) at Kitami Observatory. Nasu’s orbit is characterized by a semi-major axis of 2.59 Astronomical Units, an eccentricity of 0.17, a period of revolution of 1 527 days, and an inclination of 15.7 degrees.

Nasu is named after Nasu Eiichi (born 1955), who was chief editor of the newsletter Astro Ōita of the Astronomical Society of Ōita for more than ten years, beginning in 1979. He is now the director of this society. Nothing else is publicly known on him. But his family name is known because of the famous samurai Nasu no Yoichi (那須 与一), who lived from 1169 until 1232 and fought alongside the Minamoto clan in the Genpei War. The characters of the name Nasu (那須) have no deeper meaning in Japanese, while they mean “there” and “necessary” in Chinese. Nasu (那須) is also the name of a district, Nasu-gun (那須郡), and a town, Nasu-machi (那須町), in Tochigi Prefecture, Japan. Nasu-dake (那須岳) or Mount Nasu is a group of complex volcanoes located in the northeast part of Nikkō National Park, Japan. The Nasu Highland is a local attraction of Nasu-machi (那須町). There is barely anything else, so the economy of Nasu-machi (那須町) is heavily dependent on tourism from its numerous hot spring and ski resorts. These places are relevant here because most Japanese family names stem from Japanese place names. These places all have the same spelling, so the names also don’t tell much. The family name as well as the place names look like reluctantly invented out of an urgent necessity for a name.

Nasu mainly has the purpose to point to people and places named Nasu. The asteroid #11323 can also hint to an unwillingness and doing only what is necessary. Nasu can finally hint to a necessity, which is approached from somewhere else, or to owning a big share because Nasu Eiichi is obviously from the city Ōita (大分), where he is in charge of something, and the name of the city translates as “big share”.