シリーズ:Personalities of the Cultural History (1949-52)カタログナンバー:Mi:JP 490, Sn:JP 494, Yt:JP 517, Sg:JP 571, Sak:JP C188テーマ:天文学 | 天文学者 | 有名人・文化人 | 科学 | 科学者発行年:1952-09-26サイズ:26 x 30 ミリメートル刷色:カーマインデザイナー:Masaru Kimura | Shichizo Kurihara (E)印刷所、印刷会社:Government Printing Bureau, Tokyoフォーマット:切手発行:記念目打:櫛12印刷:凹版裏糊:通常額面:10 ¥ - 日本 円発行枚数:10,000,000スコア:67% 精度: 高い説明:Hisashi Kimura (1870-1943) was a Japanese astronomer and geodesist whose life’s work was on the motion of the Earth’s poles of rotation。 The main component of polar motion is an oscillation with a period of about 14 months called the Chandler wobble, but there is in addition a smaller yearly variation established by Kimura in 1902 known as the z-term which is caused by the seasonal displacement of air and water masses on the Earth。 This stamp depicting Kimura was released in the year of the 50th anniversary of the Mizusawa Latitude Observatory, of which he was first director (18991941). …