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Lenka Kotková
Lenka Kotková (''née'' Šarounová; born 26 July 1973) is a Czech astronomer and a discoverer of minor planets. She works at Observatoř Ondřejov (Ondřejov Observatory), located near Prague. Besides numerous main-belt asteroids she also discovered Mars-crosser asteroid 9671 Hemera and Hilda family asteroid 21804 Václavneumann. Lenka Kotková studied meteorology at the faculty of Mathematics and Physics of the Charles University in Prague. Her tasks at the Astronomical institute AV ČR in Ondřejov are primarily the development of databases, spectroscopical and photometric observation, and data processing. During her work at the department of inter planetary matter her main role was the observation of near-earth asteroids, along with Petr Pravec and Peter Kušnirák she identified a large proportion of known binary asteroids. In the same time period she discovered or co-discovered over one hundred asteroids. At the present time Lenka Kotková works in the stellar de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles University In Prague
Charles University ( cs, Univerzita Karlova, UK; la, Universitas Carolina; german: Karls-Universität), also known as Charles University in Prague or historically as the University of Prague ( la, Universitas Pragensis, links=no), is the oldest and largest university in the Czech Republic. It is one of the List of oldest universities in continuous operation, oldest universities in Europe in continuous operation. Today, the university consists of 17 faculties located in Prague, Hradec Králové, and Plzeň. Charles University belongs among the top three universities in Central and Eastern Europe. It is ranked around 200–300 in the world. History Medieval university (1349–1419) The establishment of a medieval university in Prague was inspired by Holy Roman Emperor Charles IV, Holy Roman Emperor, Charles IV. He asked his friend and ally, Pope Clement VI, to do so. On 26 January 1347 the pope issued the bull establishing a university in Prague, modeled on the University of Paris, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
8229 Kozelský
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 number ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
8217 Dominikhašek
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 number ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
7670 Kabeláč
767 may refer to: * Boeing 767, a jet airliner * 767 (number) * AD 767, a year in the 8th century. * 767 BC, a year in the 8th century BC * Area code 767 Area code 767 is the local telephone area code of the Commonwealth of Dominica, within the North American Numbering Plan. Area 767 was created with the start of permissive dialing on 1 October 1997, ending 30 September 1998, as a split from area ..., an area code of the Commonwealth of Dominica * 767, the reserved exchange for 767-2676 or POPCORN, the time of day service in northern California {{numberdis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
60001 Adélka
6 (six) is the natural number following 5 and preceding 7. It is a composite number and the smallest perfect number. In mathematics Six is the smallest positive integer which is neither a square number nor a prime number; it is the second smallest composite number, behind 4; its proper divisors are , and . Since 6 equals the sum of its proper divisors, it is a perfect number; 6 is the smallest of the perfect numbers. It is also the smallest Granville number, or \mathcal-perfect number. As a perfect number: *6 is related to the Mersenne prime 3, since . (The next perfect number is 28 (number), 28.) *6 is the only even perfect number that is not the sum of successive odd cubes. *6 is the root of the 6-aliquot tree, and is itself the aliquot sum of only one other number; the square number, . Six is the only number that is both the sum and the product of three consecutive positive numbers. Unrelated to 6's being a perfect number, a Golomb ruler of length 6 is a "perfect ruler". Si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marek Wolf
Marek Wolf (born 30 June 1957) is a Czech Republic, Czech astronomer, former head the Astronomický ústav, Univerzita Karlova v Praze (Astronomical Institute, Charles University of Prague). He is a discoverer of several asteroids between 1995 and 2001, mostly in collaboration with Czech astronomers Lenka Kotková and Petr Pravec. The Minor Planet Center credits his discoveries under M. Wolf: he is sometimes confused with Maximilian Franz Joseph Cornelius Wolf, Max Wolf (1863–1932), a Germany, German astronomer and a very famous asteroid hunter who is credited as ''M. F. Wolf''. List of discovered minor planets See also * List of minor planet discoverers References External links personal home page 1957 births 20th-century astronomers Czech astronomers Discoverers of asteroids Discoveries by Marek Wolf Living people {{Europe-astronomer-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
10390 Lenka
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 is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variable Star
A variable star is a star whose brightness as seen from Earth (its apparent magnitude) changes with time. This variation may be caused by a change in emitted light or by something partly blocking the light, so variable stars are classified as either: * Intrinsic variables, whose luminosity actually changes; for example, because the star periodically swells and shrinks. * Extrinsic variables, whose apparent changes in brightness are due to changes in the amount of their light that can reach Earth; for example, because the star has an orbiting companion that sometimes eclipses it. Many, possibly most, stars have at least some variation in luminosity: the energy output of the Sun, for example, varies by about 0.1% over an 11-year solar cycle. Discovery An ancient Egyptian calendar of lucky and unlucky days composed some 3,200 years ago may be the oldest preserved historical document of the discovery of a variable star, the eclipsing binary Algol. Of the modern astronomers, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter Kušnirák
Peter Kušnirák (born 1974) is a Slovak astronomer, discoverer of minor planets, and a prolific photometrist of light-curves at Ondřejov Observatory in the Czech Republic. He was married to Slovak astronomer Ulrika Babiaková with whom he discovered 123647 Tomáško, named after their son Tomáško. He was the principal observer to discover that the two main-belt asteroids 3073 Kursk and 5481 Kiuchi are in fact binary asteroids. In 1999, he discovered the Eunomian main-belt asteroid 24260 Kriváň, which he named after one Slovakia's national symbols, as well as 21656 Knuth and 20256 Adolfneckař, both located in the Aquarius constellation at the time. He is based out of numerous observatories in the Czech Republic, including the Ondřejov Observatory, and works solo or with partners. The Flora asteroid 17260 Kušnirák, discovered by the U.S. LINEAR Linearity is the property of a mathematical relationship (''function'') that can be graphically represented as a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
