is an initiative aimed at the recognition and valorization of the astronomical heritage of Japan. Analogous to the International Astronomical Union's of , the first assets were designated by the in March 2019 (FY2018); as of March 2026 (FY2025), twenty entries are on the list. Three categories are recognized: sites (historic sites and buildings, such as observatories), materials (historically significant items, such as astronomical instruments), and documents (including historic astronomy-related literature).
Table Asset Prefecture Municipality Responsible party Comments Image Coordinates Category FY Ref.Constellation Stone and Mutsu Kesen District Tōni Village Survey Steleseiza-seki to Mutsu-shū Kesen-gun Tōni-mura sokuryō no hi Kamaishi Kamaishi Board of Education Prefectural Tangible Cultural Property Materials 2025 Agematsu Infrared TelescopeAgematsu sekigaisen bōenkyō Sayō University of Hyogo Nishi-Harima Observatory Materials 2025 Temporary Latitude Observatory Main Building (Kimura Hisashi Memorial Museum)rinji ido kansokujo honkan (Kimura Hisashi Kinenkan) Ōshū Registered Tangible Cultural Property Sites 2024 Mitaka 200 MHz Radio TelescopeMitaka ni-hyaku mega-herutsu taiyō denpa bōenkyō Minamimaki Nobeyama Radio Observatory Materials 2024 Kwasan Observatory (Main Building, Annex, Meridian Building)Kazan tenmondai (honkan, bekkan, shigosen-kan) Kyōto Kyoto University Sites 2024 Repsold Meridian Telescope and RoomRepusorudo shigogi oyobi Repusorudo shigogi-muro Mitaka National Astronomical Observatory of Japan Important Cultural PropertyRegistered Tangible Cultural Property Sites/Materials 2023 Cosmic Dust Synthesis Experiment Apparatusuchū-jin gōsei jikken sōchi Mitaka University of Electro-CommunicationsUniversity of Tokyo Materials 2023 Kurashiki Observatory and Related HeritageKurashiki tenmondai to kanren isan Kurashiki Kurashiki ObservatoryKurashiki City Sites/Materials 2023 Osaka Municipal Electric Science Museum PlanetariumŌsaka shiritsu denki kagaku-kan puranetarium Ōsaka Osaka Science Museum Municipal Tangible Cultural Property Materials 2022 Nishina-type Ionization ChamberNishina-gata denri-bako Wakō Institute of Physical and Chemical Research Materials 2022 Transit of Venus of Meiji 7 Observation SitesMeiji shichi-nen Kinsei taiyō mentsūka kansoku-chi Nagasaki, Kobe, Yokohama Nagasaki City, Kobe City, private individual Prefectural Historic Site Sites 2021 Hisako Koyama's Sunspot SketchesKoyama Hisako-shi no taiyō kokuten suketchi-gun Tsukuba National Museum of Nature and Science Materials 2021 Sendai Domain Astronomical InstrumentsSendai-han tenmongaku kiki Sendai Sendai City Important Cultural Property Materials 2020 Temporary Latitude Observatory Visual Zenith Telescope and Related Buildingsrinji ido kansokujo ganshi tenchōgi oyobi kanren kenchiku-butsu Ōshū Registered Tangible Cultural Property Sites/Materials 2020 Nautical School Astronomical ObservatoryShōsen Gakkō tentai kansokujo Kōtō Tokyo University of Marine Science and Technology Registered Tangible Cultural Property Sites 2020 Kitora Tumulus Ceiling MuralKitora kofun tenjō hekiga Asuka MEXT National Treasure Materials 2019 Total Solar Eclipse of Meiji 20—Observation Sites and StelaiMeiji nijū-nen kaiki nisshoku kansoku-chi oyobi kansoku nisshoku-hi Sanjō Sanjō City Municipal Historic Site Sites 2019 6m Millimeter-Wave Radio Telescoperoku-mētoru miri-ha denpa bōenkyō Mitaka National Astronomical Observatory of Japan Materials 2019 MeigetsukiMeigetsuki Kyōto Reizei Family National Treasure Documents 2018 Aizu Nisshinkan Observatory SiteAizu Nisshinkan tenmondai ato Aizuwakamatsu Aizuwakamatsu Board of Education Municipal Historic Site Sites 2018
See also
Cultural Properties of Japan Japan Heritage
References
External links Japan Astronomical Heritage Japan Astronomical Heritage List of Japan Astronomical Heritage