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Astronomical Institute Of Slovak Academy Of Sciences
The Astronomical Institute of Slovak Academy of Sciences was founded in 1953, when the state observatory on Skalnaté Pleso (founded in 1943 by Dr. Bečvář) got a status of astronomical institute and became one of the founding institutes of the newly born Slovakian Academy of Sciences. In memories of past and current employees, the institute and the observatory on Skalnaté Pleso were always blended in one and therefore one could consider for the year of the institute foundation already the 1943. Currently, it has its headquarters at Tatranská Lomnica. Field of research and organization of the institute The institute focuses its research on the Sun, interplanetary matter (comets, meteoroids, asteroids) and on astrophysical research of variable and chemically peculiar stars. It has about 65 permanent employees of which roughly 50 are active researchers. It is divided into 3 departments: Department of Solar Physics Interest in solar atmospheric activity led the department to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Star System
A star system or stellar system is a small number of stars that orbit each other, bound by gravitational attraction. A large group of stars bound by gravitation is generally called a '' star cluster'' or '' galaxy'', although, broadly speaking, they are also star systems. Star systems are not to be confused with planetary systems, which include planets and similar bodies (such as comets). A star system of two stars is known as a '' binary star'', ''binary star system'' or ''physical double star''. If there are no tidal effects, no perturbation from other forces, and no transfer of mass from one star to the other, such a system is stable, and both stars will trace out an elliptical orbit around the barycenter of the system indefinitely. ''(See Two-body problem)''. Examples of binary systems are Sirius, Procyon and Cygnus X-1, the last of which probably consists of a star and a black hole. Multiple star systems A multiple star system consists of three or more stars that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ľudmila Pajdušáková
Ľudmila Pajdušáková (29 June 1916 – 6 October 1979) was a Czechoslovak astronomer. She specialized in solar astronomy, and also discovered a number of comets, including periodic comet 45P/Honda-Mrkos-Pajdušáková, and the non-periodic C/1946 K1 (Pajdušáková-Rotbart-Weber), C/1948 E1 (Pajdušáková-Mrkos), C/1951 C1 (Pajdušáková) and C/1953 X1 (Pajdušáková). She observed at Skalnaté Pleso Observatory and became its third director from 1958 to 1979. The asteroid 3636 Pajdušáková is named after her. She may have been married to Antonín Mrkos Antonín Mrkos () (27 January 1918, Střemchoví – 29 May 1996, Prague) was a Czech astronomer. Biography Mrkos entered the University in Brno in 1938. His studies were interrupted by the onset of World War II, and in 1945 he became a staff .... In a 1951 "Comet Notes" article in ''Publications of the Astronomical Society of the Pacific'' ASP 63 (1951) 209 Leland E. Cunningham in discussing comet C/195 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Záviš Bochníček
Zawisza or Záviš is a Slavic name and may refer to: People * Zawisza Czarny (1379–1428), known as Zawisza the Black, a famous Polish medieval knight and diplomat * Zawisza Czerwony (died 1433), known as Zawisza the Red, a less famous but notable contemporary of Zawisza Czarny * Artur Zawisza (born 1969), a Polish politician * Marcelina Zawisza (born 1989), a Polish politician * Oskar Zawisza (1878–1933), a Polish Catholic priest, composer and educational activist * Záviš of Zápy (1350–1411), a Czech theologian and composer * Záviš, a well known name of Czech singer Milan Smrčka (born 1956) * Záviš Kalandra (1902–1950), a Czech historian who was executed by Communists * Zavis of Falkenstein (1250–1290), a Czech nobleman * Zawisza (Szare Szeregi), the youngest Scouts, known for their resistance work during the Warsaw Uprising Other * Zawisza Bydgoszcz, a sports club from Bydgoszcz, Poland * Zawisza Pajęczno, a soccer club in Pajęczno, Poland * Za ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antonín Bečvář
Antonín Bečvář (; 10 June 1901 – 10 January 1965) was a Czech astronomer who was active in Slovakia. He was born (and died) in Stará Boleslav. Among his chief achievements is the foundation of the Skalnaté Pleso Observatory and the discovery of the comet C/1947 F2 (Bečvář) (also known by the designations 1947 III and 1947c). His lifelong illness led him to the High Tatras where he founded the observatory. Bečvář is particularly important for his star charts: he led the compilation of the ''Atlas Coeli Skalnate Pleso'' (1951), published by Sky Publishing Corporation as the ''Skalnate Pleso Atlas of the Heavens'', which was the state-of-the-art atlas of its kind until Wil Tirion's "Sky Atlas 2000.0" in 1981. A dozen star names in the atlas are of unknown origin, no connection to any language or previous source has been discovered despite an extensive search. He also compiled ''Atlas eclipticalis, 1950.0'' (1958), ''Atlas borealis 1950.0'' (1962), and ''Atlas a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spectrometer
A spectrometer () is a scientific instrument used to separate and measure spectral components of a physical phenomenon. Spectrometer is a broad term often used to describe instruments that measure a continuous variable of a phenomenon where the spectral components are somehow mixed. In visible light a spectrometer can separate white light and measure individual narrow bands of color, called a spectrum. A mass spectrometer measures the spectrum of the masses of the atoms or molecules present in a gas. The first spectrometers were used to split light into an array of separate colors. Spectrometers were developed in early studies of physics, astronomy, and chemistry. The capability of spectroscopy to determine chemical composition drove its advancement and continues to be one of its primary uses. Spectrometers are used in astronomy to analyze the chemical composition of stars and planets, and spectrometers gather data on the origin of the universe. Examples of spectrometers are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coronograph
A coronagraph is a telescopic attachment designed to block out the direct light from a star so that nearby objects – which otherwise would be hidden in the star's bright glare – can be resolved. Most coronagraphs are intended to view the corona of the Sun, but a new class of conceptually similar instruments (called ''stellar coronagraphs'' to distinguish them from ''solar coronagraphs'') are being used to find extrasolar planets and circumstellar disks around nearby stars as well as host galaxies in quasars and other similar objects with active galactic nuclei (AGN). Invention The coronagraph was introduced in 1931 by the French astronomer Bernard Lyot; since then, coronagraphs have been used at many solar observatories. Coronagraphs operating within Earth's atmosphere suffer from scattered light in the sky itself, due primarily to Rayleigh scattering of sunlight in the upper atmosphere. At view angles close to the Sun, the sky is much brighter than the background co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charge-coupled Device
A charge-coupled device (CCD) is an integrated circuit containing an array of linked, or coupled, capacitors. Under the control of an external circuit, each capacitor can transfer its electric charge to a neighboring capacitor. CCD sensors are a major technology used in digital imaging. In a CCD image sensor, pixels are represented by p-doped metal–oxide–semiconductor (MOS) capacitors. These MOS capacitors, the basic building blocks of a CCD, are biased above the threshold for inversion when image acquisition begins, allowing the conversion of incoming photons into electron charges at the semiconductor-oxide interface; the CCD is then used to read out these charges. Although CCDs are not the only technology to allow for light detection, CCD image sensors are widely used in professional, medical, and scientific applications where high-quality image data are required. In applications with less exacting quality demands, such as consumer and professional digital cameras, act ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bratislava
Bratislava (, also ; ; german: Preßburg/Pressburg ; hu, Pozsony) is the Capital city, capital and largest city of Slovakia. Officially, the population of the city is about 475,000; however, it is estimated to be more than 660,000 — approximately 140% of the official figures. Bratislava is in southwestern Slovakia at the foot of the Little Carpathians, occupying both banks of the River Danube and the left bank of the Morava (river), River Morava. Bordering Austria and Hungary, it is the only national capital that borders two sovereign states. The city's history has been influenced by people of many nations and religions, including Austrians, Bulgarians, Croats, Czechs, Germans, Hungarian people, Hungarians, Jews, Romani people, Romani, Serbs and Slovaks. It was the coronation site and legislative center and capital of the Kingdom of Hungary from 1536 to 1783; eleven King of Hungary, Hungarian kings and eight queens were crowned in St Martin's Cathedral, Bratislava, St Martin' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lomnický štít
Lomnický štít ( en, Lomnica Peak or Lomnický Peak, hu, Lomnici-csúcs, german: Lomnitzer Spitze, pl, Łomnica) is one of the highest and most visited mountain peaks in the High Tatras mountains of Slovakia. Connected by cable car to Tatranská Lomnica, its summit is above sea level, making it the second highest peak in the High Tatras after Gerlachovský štít (2654 m). Local shoemaker and amateur miner Jakab Fábry stated he made an ascent around 1760–1790, but the first recorded ascent was made by the English traveler Robert Townson and guide on 16 August 1793. He measured the elevation of the peak to be 2633 m, a meter below the actual elevation. The first winter ascent was made in 1891. In the past, Lomnický štít was called as ''Vater'' (Father), ''Grossvater'' (Grandfather), ''Königsberg'' (King's Mountain), ''Królowa Tatr'' and ''Królowa Tatrzańska'' (Princess of the Tatra), ''Petra altissima kesmarkiensis'' and ''allerhöchster Kaisermärkerfels'' (High ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Observatory
An observatory is a location used for observing terrestrial, marine, or celestial events. Astronomy, climatology/meteorology, geophysical, oceanography and volcanology are examples of disciplines for which observatories have been constructed. Historically, observatories were as simple as containing an astronomical sextant (for measuring the distance between stars) or Stonehenge (which has some alignments on astronomical phenomena). Astronomical observatories Astronomical observatories are mainly divided into four categories: space-based, airborne, ground-based, and underground-based. Ground-based observatories Ground-based observatories, located on the surface of Earth, are used to make observations in the radio and visible light portions of the electromagnetic spectrum. Most optical telescopes are housed within a dome or similar structure, to protect the delicate instruments from the elements. Telescope domes have a slit or other opening in the roof that can be opened during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
