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Masahiro Koishikawa
was a Japan, Japanese astronomer. He studied both major and minor planets, and discovered multiple asteroids. Koishikawa was a staff member of the Sendai Astronomical Observatory frin 1972. His research was based out of the Sendai's Ayashi (List of observatory codes, 391) station. The main-belt asteroid 6097 Koishikawa, discovered by Kin Endate and Kazuro Watanabe at Kitami in 1991, was named in his honor. He died on 26 August 2020 from lung cancer. List of discovered minor planets See also *References {{DEFAULTSORT:Koishikawa, Masahiro 1952 births 2020 deaths Deaths from lun ...[...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 IAU definition of planet, reclassified minor planets and comets into dwarf planets and Small Solar System body, 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. In contrast to the eight official planets of the Solar System, all minor planets fail to clearing the neighborhood, clear their orbital neighborhood. Minor planets include asteroids (near- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
5128 Wakabayashi , a main-belt asteroid
{{Numberdis ...
51 may refer to: * 51 (number) * The year ** 51 BC ** AD 51 ** 1951 ** 2051 * ''51'' (film), a 2011 American horror film directed by Jason Connery * "Fifty-One", an episode of the American television drama series ''Breaking Bad'' * ''51'' (album), a 2012 mixtape by rapper Kool A.D. * "Fifty One", a song by Karma to Burn from the album '' V'', 2011 * 51 Nemausa 51 Nemausa is a large main-belt asteroid that was discovered on January 22, 1858, by Joseph Jean Pierre Laurent. Laurent made the discovery from the private observatory of Benjamin Valz in Nîmes, France. The house, at 32 rue Nationale in Nîmes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
30963 Mount Banzan
3 (three) is a number, numeral and digit. It is the natural number following 2 and preceding 4, and is the smallest odd prime number and the only prime preceding a square number. It has religious and cultural significance in many societies. Evolution of the Arabic digit The use of three lines to denote the number 3 occurred in many writing systems, including some (like Roman and Chinese numerals) that are still in use. That was also the original representation of 3 in the Brahmic (Indian) numerical notation, its earliest forms aligned vertically. However, during the Gupta Empire the sign was modified by the addition of a curve on each line. The Nāgarī script rotated the lines clockwise, so they appeared horizontally, and ended each line with a short downward stroke on the right. In cursive script, the three strokes were eventually connected to form a glyph resembling a with an additional stroke at the bottom: ३. The Indian digits spread to the Caliphate in the 9th c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
14032 Mego
Fourteen or 14 may refer to: * 14 (number), the natural number following 13 and preceding 15 * one of the years 14 BC, AD 14, 1914, 2014 Music * 14th (band), a British electronic music duo * ''14'' (David Garrett album), 2013 *''14'', an unreleased album by Charli XCX * "14" (song), a 2007 song by Paula Cole from ''Courage'' * "Fourteen", a 2000 song by The Vandals from '' Look What I Almost Stepped In...'' Other uses * ''Fourteen'' (film), a 2019 American film directed by Dan Sallitt * ''Fourteen'' (play), a 1919 play by Alice Gerstenberg * ''Fourteen'' (manga), a 1990 manga series by Kazuo Umezu * ''14'' (novel), a 2013 science fiction novel by Peter Clines * ''The 14'', a 1973 British drama film directed by David Hemmings * Fourteen, West Virginia, United States, an unincorporated community * Lot Fourteen, redevelopment site in Adelaide, South Australia, previously occupied by the Royal Adelaide Hospital * "The Fourteen", a nickname for NASA Astronaut Group 3 * Fourteen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
12252 Gwangju
1 (one, unit, unity) is a number, numeral, and glyph. It is the first and smallest positive integer of the infinite sequence of natural numbers. This fundamental property has led to its unique uses in other fields, ranging from science to sports, where it commonly denotes the first, leading, or top thing in a group. 1 is the unit of counting or measurement, a determiner for singular nouns, and a gender-neutral pronoun. Historically, the representation of 1 evolved from ancient Sumerian and Babylonian symbols to the modern Arabic numeral. In mathematics, 1 is the multiplicative identity, meaning that any number multiplied by 1 equals the same number. 1 is by convention not considered a prime number. In digital technology, 1 represents the "on" state in binary code, the foundation of computing. Philosophically, 1 symbolizes the ultimate reality or source of existence in various traditions. In mathematics The number 1 is the first natural number after 0. Each natural number, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
10500 Nishi-koen
1 (one, unit, unity) is a number, numeral, and glyph. It is the first and smallest positive integer of the infinite sequence of natural numbers. This fundamental property has led to its unique uses in other fields, ranging from science to sports, where it commonly denotes the first, leading, or top thing in a group. 1 is the unit of counting or measurement, a determiner for singular nouns, and a gender-neutral pronoun. Historically, the representation of 1 evolved from ancient Sumerian and Babylonian symbols to the modern Arabic numeral. In mathematics, 1 is the multiplicative identity, meaning that any number multiplied by 1 equals the same number. 1 is by convention not considered a prime number. In digital technology, 1 represents the "on" state in binary code, the foundation of computing. Philosophically, 1 symbolizes the ultimate reality or source of existence in various traditions. In mathematics The number 1 is the first natural number after 0. Each natural number, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
8084 Dallas
8 (eight) is the natural number following 7 and preceding 9. Etymology English ''eight'', from Old English '', æhta'', Proto-Germanic ''*ahto'' is a direct continuation of Proto-Indo-European '' *oḱtṓ(w)-'', and as such cognate with Greek and Latin , both of which stems are reflected by the English prefix oct(o)-, as in the ordinal adjective ''octaval'' or ''octavary'', the distributive adjective is ''octonary''. The adjective ''octuple'' (Latin ) may also be used as a noun, meaning "a set of eight items"; the diminutive ''octuplet'' is mostly used to refer to eight siblings delivered in one birth. The Semitic numeral is based on a root ''*θmn-'', whence Akkadian ''smn-'', Arabic ''ṯmn-'', Hebrew ''šmn-'' etc. The Chinese numeral, written (Mandarin: ''bā''; Cantonese: ''baat''), is from Old Chinese ''*priāt-'', ultimately from Sino-Tibetan ''b-r-gyat'' or ''b-g-ryat'' which also yielded Tibetan '' brgyat''. It has been argued that, as the cardinal num ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
7816 Hanoi
7816 Hanoi, provisional designation , is an eccentric stony asteroid and Mars-crosser from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered on 18 December 1987, by Japanese astronomer Masahiro Koishikawa at the Ayashi Station () of the Sendai Astronomical Observatory, Japan, and later named after the Vietnamese capital of Hanoi. Orbit and classification ''Hanoi'' orbits the Sun in the inner main-belt at a distance of 1.6–3.0 AU once every 3 years and 6 months (1,287 days). Its orbit has an eccentricity of 0.29 and an inclination of 2 ° with respect to the ecliptic. No precoveries were taken. The asteroid's observation arc begins with its official discovery observation. Physical characteristics Lightcurves In November 2011, a rotational lightcurve of ''Hanoi'' was obtained from photometric observations made American astronomer by Brian Warner at his Palmer Divide Observatory in Colorado. The lightcurve gave a r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
6349 Acapulco
6349 Acapulco, provisional designation , is a dark Adeonian asteroid from the middle region of the asteroid belt, approximately 22 kilometers in diameter. The asteroid was discovered on 8 February 1995, by Japanese astronomer Masahiro Koishikawa at the Ayashi Station () of the Sendai Astronomical Observatory in the Tōhoku region of Japan. It was named for the Mexican city of Acapulco. Orbit and classification ''Acapulco'' is a member of the Adeona family (), a large family of carbonaceous asteroids. It orbits the Sun in the central main-belt at a distance of 2.3–3.0 AU once every 4 years and 4 months (1,590 days). Its orbit has an eccentricity of 0.14 and an inclination of 11 ° with respect to the ecliptic. In March 1947, it was first identified as at Yerkes Observatory. The body's observation arc begins 42 years prior to its official discovery observation at Ayashi, with a precovery taken at Palomar Observatory in 1953. Physical characteristics Lightcurve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
