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Tetsuya Fujii
Tetsuya Fujii (, ''Fujii Tetsuya''; born 1960) is a Japanese amateur astronomer and prolific discoverer of minor planets. From 1988 to 1992, he had discovered a total of 22 numbered asteroids together with his colleague, Kazuro Watanabe, at the Kitami Observatory in the Kitami-Abashiri Region Cultural Centre in eastern Hokkaidō, Japan, where several amateur astronomers have been conducting an active program of astrometric observations of minor planets and comets. He is director of the astronomical club in Kitami, where he also works for the NHK broadcasting office. The minor planet 4343 Tetsuya, discovered by Seiji Ueda and Hiroshi Kaneda in 1988, was named in his honour. See also * 5357 Sekiguchi, an outer main-belt asteroid * 5474 Gingasen, a Baptistina asteroid References {{DEFAULTSORT:Fujii, Tetsuya 1960 births Discoverers of asteroids Discoveries by Tetsuya Fujii, * 20th-century Japanese astronomers Living people 21st-century Japanese astron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minor Planet
According to the International Astronomical Union (IAU), a minor planet is an astronomical object in direct orbit around the Sun that is exclusively classified as neither a planet nor a comet. Before 2006, the IAU officially used the term ''minor planet'', but that year's meeting reclassified minor planets and comets into dwarf planets and small Solar System bodies (SSSBs).Press release, IAU 2006 General Assembly: Result of the IAU Resolution votes International Astronomical Union, August 24, 2006. Accessed May 5, 2008. Minor planets include asteroids ( |
Discoverers Of Asteroids
Discovery is the act of detecting something new, or something previously unrecognized as meaningful. With reference to sciences and academic disciplines, discovery is the observation of new phenomena, new actions, or new events and providing new reasoning to explain the knowledge gathered through such observations with previously acquired knowledge from abstract thought and everyday experiences. A discovery may sometimes be based on earlier discoveries, collaborations, or ideas. Some discoveries represent a radical breakthrough in knowledge or technology. New discoveries are acquired through various senses and are usually assimilated, merging with pre-existing knowledge and actions. Questioning is a major form of human thought and interpersonal communication, and plays a key role in discovery. Discoveries are often made due to questions. Some discoveries lead to the invention of objects, processes, or techniques. A discovery may sometimes be based on earlier discoveries, collab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1960 Births
Year 196 ( CXCVI) was a leap year starting on Thursday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Dexter and Messalla (or, less frequently, year 949 ''Ab urbe condita''). The denomination 196 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Emperor Septimius Severus attempts to assassinate Clodius Albinus but fails, causing Albinus to retaliate militarily. * Emperor Septimius Severus captures and sacks Byzantium; the city is rebuilt and regains its previous prosperity. * In order to assure the support of the Roman legion in Germany on his march to Rome, Clodius Albinus is declared Augustus by his army while crossing Gaul. * Hadrian's wall in Britain is partially destroyed. China * First year of the '' Jian'an era of the Chinese Han Dynasty. * Emperor Xian o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hiroshi Kaneda
is a Japanese astronomer and discoverer of minor planets from Sapporo, in the northernmost prefecture of Japan. Kaneda ranks among the world's most prolific individual discoverers of minor planets. He is credited by the Minor Planet Center with the co-discovery of 705 numbered minor planets, between 1987 and 2000, all of them in collaboration with astronomer Seiji Ueda. Along with being an astronomer, Kaneda works as a computer programmer and is a developer of astronomical software. The main-belt asteroid 4677 Hiroshi, discovered by Atsushi Takahashi and Kazurō Watanabe at Kitami in 1990, is named after him. List of discovered minor planets His many minor planet discoveries include (5646) 1990 TR, a near-Earth object of the Amor group, , an asteroid from the main-belt, (5407) 1992 AX, a Mars-crossing asteroid, (7352) 1994 CO, a Jupiter trojan, as well as the three named main-belt asteroids 4672 Takuboku, 5176 Yoichi and 6235 Burney (the latter was not named by him). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seiji Ueda
is a Japanese astronomer. He is a prolific discoverer of minor planets. Between 1987 and 2000, Ueda (in collaboration with Hiroshi Kaneda) discovered 705 asteroids. He holds an MD and Ph.D. from Stanford University and is on the staff at the Graduate University for Advanced Study in Japan. (pdf). Retrieved October 30, 2006. The inner main-belt
The asteroid belt is a torus-shaped region in the Solar System, located roughly between the orbits of the planets Jupiter and Mars. It contains a great many solid, irregularly shaped bodies, of many sizes, but much smaller than planets, called ... asteroid [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astrometric
Astrometry is a branch of astronomy that involves precise measurements of the positions and movements of stars and other celestial bodies. It provides the kinematics and physical origin of the Solar System and this galaxy, the Milky Way. History The history of astrometry is linked to the history of star catalogues, which gave astronomers reference points for objects in the sky so they could track their movements. This can be dated back to Hipparchus, who around 190 BC used the catalogue of his predecessors Timocharis and Aristillus to discover Earth's precession. In doing so, he also developed the brightness scale still in use today. Hipparchus compiled a catalogue with at least 850 stars and their positions. Hipparchus's successor, Ptolemy, included a catalogue of 1,022 stars in his work the ''Almagest'', giving their location, coordinates, and brightness. In the 10th century, Abd al-Rahman al-Sufi carried out observations on the stars and described their positions, magnitu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hokkaidō
is Japan's second largest island and comprises the largest and northernmost prefecture, making up its own region. The Tsugaru Strait separates Hokkaidō from Honshu; the two islands are connected by the undersea railway Seikan Tunnel. The largest city on Hokkaidō is its capital, Sapporo, which is also its only ordinance-designated city. Sakhalin lies about 43 kilometers (26 mi) to the north of Hokkaidō, and to the east and northeast are the Kuril Islands, which are administered by Russia, though the four most southerly are claimed by Japan. Hokkaidō was formerly known as ''Ezo'', ''Yezo'', ''Yeso'', or ''Yesso''. Nussbaum, Louis-Frédéric. (2005). "Hokkaidō" in Although there were Japanese settlers who ruled the southern tip of the island since the 16th century, Hokkaido was considered foreign territory that was inhabited by the indigenous people of the island, known as the Ainu people. While geographers such as Mogami Tokunai and Mamiya Rinzō explored the isla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kitami Observatory
Kitami Observatory is an astronomical observatory in the Kitami-Abashiri Region Cultural Centre in eastern Hokkaidō, Japan. Its observatory code is 400. It is 0.72344 Earth radii from the rotation axis and +0.68811 Earth radii from the equatorial plane, 143.7827 degrees east of Greenwich. The amateur astronomers Atsushi Takahashi and Kazuro Watanabe discovered many asteroids here. , 680 discoveries have been made at Kitami. See also * Kin Endate * List of observatories ** List of asteroid-discovering observatories The list of asteroid-discovering observatories contains a section for each observatory which has discovered one or more asteroids, along with a list of those asteroids. For each numbered asteroid, the Minor Planet Center lists one or more discov ... * Tetsuya Fujii Notes External links Kitami Region Museum of Science History and Artofficial website Astronomical observatories in Japan Museums in Hokkaido Minor-planet discovering observatories Kitami ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amateur Astronomer
Amateur astronomy is a hobby where participants enjoy observing or imaging celestial objects in the sky using the unaided eye, binoculars, or telescopes. Even though scientific research may not be their primary goal, some amateur astronomers make contributions in doing citizen science, such as by monitoring variable stars, double stars, sunspots, or occultations of stars by the Moon or asteroids, or by discovering transient astronomical events, such as comets, galactic novae or supernovae in other galaxies. Amateur astronomers do not use the field of astronomy as their primary source of income or support, and usually have no professional degree in astrophysics or advanced academic training in the subject. Most amateurs are hobbyists, while others have a high degree of experience in astronomy and may often assist and work alongside professional astronomers. Many astronomers have studied the sky throughout history in an amateur framework; however, since the beginning of the tw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kazuro Watanabe
is a Japanese amateur astronomer and prolific discoverer of minor planets. He was born in Hokkaidō, Japan and is a member of the ''Astronomical Society of Japan'' as well as of the ''Oriental Astronomical Association''. Through publications and the direction of junior associates, this asteroid hunter has been responsible for the discovery of nearly 700 asteroids. He is the author or the co-author of the Japanese publications ''Asteroid Hunter'' (小惑星ハンター), ''Celestial Body Photography Manual'' (天体写真マニュアル), ''The Celestial Sky of Our Dreams'' (僕らの夢の星空), as well as others. He also is a frequent contributor to the Japanese periodical ''Monthly Astronomical Guide'' (月刊天文ガイド). The minor planet 4155 Watanabe has been named in his honor. Discoveries Names of some asteroids * Mamiya (間宮, 12127) – Named after the famous Edo-period detective, Mamiya Rinzō. * Tentaikojo (天体工場, 12713) – Named after the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
