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Zdeněk Moravec
Zdeněk Moravec (born 1968) is a Czech astronomer and astrophysicist. Zdeněk Moravec is a graduate from Charles University in Prague. He became a prolific discoverer of minor planets, during his stay at the Kleť Observatory in South Bohemia, Czech Republic, from 1992 to 2000. He is credited by the Minor Planet Center with a total of 93 discovered bodies (between 1994 and 1998), of which 65 were co-discoveries together with astronomer Miloš Tichý. In March 2008 they discovered the minor planet 17805 Švestka at the Kleť Observatory, which they named it in honor of solar physicist Zdeněk Švestka. Since 2001, he teaches theoretic physics and computer modelling at Jan Evangelista Purkyně University in Ústí nad Labem, Czech Republic. List of discovered minor planets See also * 9991 Anežka * 15374 Teta 15374 Teta, provisional designation , is bright, stony Hungaria asteroid from the inner regions of the asteroid belt, about 3.3 kilometers in diameter. It ... [...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 ( |
7796 Járacimrman
7796 Járacimrman () is a dark Adeonian asteroid orbiting in the central region of the asteroid belt, approximately 11 kilometers in diameter. Discovered by Zdeněk Moravec at the Kleť Observatory in 1996, it was later named after Jára Cimrman, a Czech fictional character. Discovery ''Járacimrman'' was discovered by Zdeněk Moravec at the Kleť Observatory in the Czech Republic, on 16 January 1996 and was initially designated . Observations continued until April 1996, and then again between June and July 1997. The asteroid was later determined to be a lost asteroid which had previously been observed twice: at the Brera-Merate Observatory in northern Italy on 12 December 1973, and at Mount Stromlo Observatory, near Canberra, Australia, on 8 and 9 July 1990. Classification and orbit The asteroid is a member of the Adeona family (), a large family of carbonaceous asteroids. In 1997, ''Járacimrman''s orbit was calculated more precisely by additional observatories and i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
10174 Emička
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0. The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally accepted until the mid-20th century. Additionally, 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
10170 Petrjakeš
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0. The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally accepted until the mid-20th century. Additionally, 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
9991 Anežka
9991 Anežka, provisional designation , is a carbonaceous Themistian asteroid from the outer region of the asteroid belt, approximately 10 kilometers in diameter. The asteroid was discovered on 5 October 1997, by Czech astronomer Zdeněk Moravec at the South Bohemian Kleť Observatory in the Czech Republic. It was named after the discoverer's grandmother, Anežka Moravcová. Orbit and classification Anežka is a carbonaceous asteroid and member of the Themis family, a dynamical family of outer main-belt asteroids with nearly coplanar ecliptical orbits. It orbits the Sun at a distance of 2.7–3.7 AU once every 5 years and 9 months (2,094 days). Its orbit has an eccentricity of 0.16 and an inclination of 2 ° with respect to the ecliptic. It was first identified as at the Japanese Kiso Observatory in 1977, extending the body's observation arc by 20 years prior to its discovery. Physical characteristics Rotation period A rotational lightcurve for this aste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
9224 Železný
9 (nine) is the natural number following and preceding . Evolution of the Arabic digit In the beginning, various Indians wrote a digit 9 similar in shape to the modern closing question mark without the bottom dot. The Kshatrapa, Andhra and Gupta started curving the bottom vertical line coming up with a -look-alike. The Nagari continued the bottom stroke to make a circle and enclose the 3-look-alike, in much the same way that the sign @ encircles a lowercase ''a''. As time went on, the enclosing circle became bigger and its line continued beyond the circle downwards, as the 3-look-alike became smaller. Soon, all that was left of the 3-look-alike was a squiggle. The Arabs simply connected that squiggle to the downward stroke at the middle and subsequent European change was purely cosmetic. While the shape of the glyph for the digit 9 has an ascender in most modern typefaces, in typefaces with text figures the character usually has a descender, as, for example, in . T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
9102 Foglar
91 may refer to: Years * 91 BC * AD 91 * 1991 * 2091 * etc. Transportation * List of highways numbered A ''list'' is any set of items in a row. List or lists may also refer to: People * List (surname) Organizations * List College, an undergraduate division of the Jewish Theological Seminary of America * SC Germania List, German rugby union ... * 91 Line, a rail line * Saab 91, an aircraft Other uses * 91 (number) * '' 91:an'', a Swedish comic * ''91'', a 2017 album by Jamie Grace * Ninety One (group), a Kazakh boy group * Ninety-One (solitaire) * Ninety One plc, an Anglo-South African asset management business * Protactinium, atomic number 91 See also * * {{Numberdis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
8740 Václav
__FORCETOC__ Year 874 ( DCCCLXXIV) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. Events By place Europe * Salomon, duke ('king') of Brittany, is murdered by a faction which includes his son-in-law Pascweten and Gurvand, son-in-law of late ruler Erispoe. After Salomon's death they divide the country, and Pascweten and Gurvand co-rule Brittany. * Svatopluk I, ruler ('' knyaz'') of Great Moravia, concludes a peace treaty at Forchheim (Northern Bavaria). He is able to expand his territories outside the Frankish sphere, and subjugates the Vistulans. * Ingólfr Arnarson arrives from Norway, as the first permanent Viking settler in Iceland. He builds his homestead and founds Reykjavík. The settlement of Iceland begins (approximate date). Britain * The Danish Vikings (from their base at Repton) drive King Burgred of Mercia into exile, and sack Tamworth. They conquer his kingdom and install his political opponent, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
8222 Gellner
8 (eight) is the natural number following 7 and preceding 9. In mathematics 8 is: * a composite number, its proper divisors being , , and . It is twice 4 or four times 2. * a power of two, being 2 (two cubed), and is the first number of the form , being an integer greater than 1. * the first number which is neither prime nor semiprime. * the base of the octal number system, which is mostly used with computers. In octal, one digit represents three bits. In modern computers, a byte is a grouping of eight bits, also called an octet. * a Fibonacci number, being plus . The next Fibonacci number is . 8 is the only positive Fibonacci number, aside from 1, that is a perfect cube. * the only nonzero perfect power that is one less than another perfect power, by Mihăilescu's Theorem. * the order of the smallest non-abelian group all of whose subgroups are normal. * the dimension of the octonions and is the highest possible dimension of a normed division algebra. * the first num ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
