Astronomical phenomena march 19211/15/2024 ![]() ![]() ![]() Solar Spectroscopy Photographic Building (The Solar Tower Telescope) was built. Publication of the “Rikanenpyo: Chronological Scientific Tables” began.Ħ5-cm Refractor Telescope was established. Solar Photographic Building was completed. The Latitude Observatory was established in Mizusawa. The Tokyo Astronomical Observatory was established. The different eras are defined by changes in the Japanese government, and accompanied by changes in Japanese society. *Note: In addition to the standard Gregorian Calendar, Japan continues to use a reign era calendar. Finally the National Astronomical Observatory of Japan (NAOJ) was incorporated as the Inter-University Research Institute Corporation, National Institutes of Natural Sciences, National Astronomical Observatory of Japan on April 1, 2004. For a time the observatory was under the jurisdiction of the Ministry of Education, Science, Sports and Culture (the Ministry of Education) which was reorganized to be the Ministry of Education, Culture, Sports, Sciences and Technology (MEXT). In 1988 (Showa era 63), the Tokyo Astronomical Observatory was reorganized into the National Astronomical Observatory of Japan, together with the Latitude Observatory in Mizusawa and others. These were started as national projects in the Meiji era, and our observatory continues to fulfill these functions to this day. In the beginning, the main task of the astronomical observatory was to observe the stars in order to determine longitude and latitude, calculate the calendar, and determine the correct time. The astronomical observatory was moved to Mitaka in 1924 (Taisho era 13). ![]() In the Meiji era, an observatory for student observations was established in Hongo Campus of the University of Tokyo, and the Tokyo Astronomical Observatory was established in Azabu, Minato-ku, in 1888 (Meiji era 21*). The first continuous, methodical celestial observations began in 1782 at Asakusa Observatory through the work of the Tenmonkata (Official Astronomer) under the direction of the Shogun in the latter part of the Edo era. In early Japanese history, astronomical observations were sporadic and limited in scope. ![]()
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