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Kōichi Itagaki (Japanese: 板垣 公一, Hepburn: Itagaki Kōichi, born 12 November 1947) is an amateur astronomer based in Yamagata, the capital city of Yamagata Prefecture in the Tōhoku region of northern Honshu island, Japan. He is responsible for discovering many comets, and over 170 supernovae. [1]
Kin Endate (円館 金, Endate Kin, born December 15, 1960) is a Japanese amateur astronomer who has discovered hundreds of asteroids, most of them in collaboration with Kazuro Watanabe, placing him among the most prolific discoverers of minor planets.
Masakatsu Aoki (青木 昌勝, Aoki Masakatsu, born 1957, Toyama Prefecture) is a Japanese amateur astronomer who operates from his private Aoki Astronomical Observatory at Toyama, Toyama Prefecture, Japan. [3] His main interest lies in supernovae of which he has discovered a total of 13, such a SN 1999eu as well as SN 2000db and SN 2000di.
Amateur astronomer recording observations of the sun. Collectively, amateur astronomers observe a variety of celestial objects and phenomena. Common targets of amateur astronomers include the Sun, the Moon, planets, stars, comets, meteor showers, and a variety of deep sky objects such as star clusters, galaxies, and nebulae. Many amateurs like ...
Kazuro Watanabe is credited by the Minor Planet Center with the discovery of 671 minor planets made between 1987 and 2000. [1]Some of his discoveries include (in alphabetical order) the minor planets 4263 Abashiri (Florian asteroid), 4585 Ainonai, 46610 Bésixdouze, 5331 Erimomisaki, 3915 Fukushima, 5474 Gingasen (Vestian binary), 9971 Ishihara, 11949 Kagayayutaka, 5481 Kiuchi, 6498 Ko (slow ...
Japanese amateur astronomer Hideo Nishimura discovered the comet in images he obtained using a 200-mm f/3 telephoto lens mounted on a Canon EOS 6D on 12 August 2023, when the comet was 1.0 AU from the Sun. He also found it in images he exposed the previous night. [1]
Hiroki Kosai (香西 洋樹, Kōsai Hiroki, born 8 February 1933) is a Japanese astronomer with the Kiso Observatory.He is best known for helping to popularize astronomy in Japan and for his observations of comets and asteroids, most notably with his co-discovery the comet 1976 XVI. [2]
Hiroshi Abe (安部 裕史, Abe Hiroshi, born 1958) is a Japanese amateur astronomer affiliated with the Yatsuka Observatory. [2] He is noted for numerous discoveries, including his 2007 discovery of the Nova Vulpeculae, [3] and 28 numbered minor planets during 1993–1999.