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Petr Horálek
Petr Horálek (born July 21, 1986) is a Czech astrophotographer, popularizer of astronomy and an artist. Astronomy and astrophotography Early life Horálek worked as a volunteer at the Pardubice observatory from 1999–2010 and studied theoretical physics and astrophysics at Masaryk University in Brno (2007–2011). In 2011, he took up astrophotography. Astrophotography Horálek specializes in photographing rare night-sky phenomena and photographs with the night sky over terrestrial foregrounds. In January 2015, he became the 22nd Photo Ambassador of the European Southern Observatory (ESO). He focuses mostly on high-definition fulldome and panoramic images of the night sky over ESO observatories. Horálek is the Czech delegate of the International Dark Sky Association. Since 2020 he has worked at the Institute of Physics in Opava. In 2012, he recorded a bright Perseid fireball on August 12, 2012, which was analyzed by P. Spurný at al. in a study published in Astr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pardubice
Pardubice (; ) is a city in the Czech Republic. It has about 92,000 inhabitants. It is the capital city of the Pardubice Region and lies on the Elbe River. The historic centre is well preserved and is protected as an Cultural monument (Czech Republic)#Monument reservations, urban monument reservation. Pardubice is known as the centre of industry, which represents an oil refinery or an electronic equipment plant. The city is well known for its sport events, which include the Velká pardubická steeplechase in horse racing, the Golden Helmet of Pardubice in motorcycle racing, and the Czech Open international chess and board games festival. Administrative division Pardubice consists of eight Statutory city (Czech Republic)#Differences of statutory city, self-governing boroughs. In addition, Pardubice consists of 27 municipal parts, whose borders do not respect the boundaries of boroughs (in brackets population according to the 2021 census): *Pardubice I (20,928) **''Bílé Předměs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perseids
The Perseids are a prolific meteor shower associated with the comet Swift–Tuttle that are usually visible from mid-July to late-August. The meteoroid, meteors are called the Perseids because they appear from the general direction of the constellation Perseus (constellation), Perseus and in more modern times have a radiant (meteor shower), radiant bordering on Cassiopeia (constellation), Cassiopeia and Camelopardalis. Etymology The name is derived from the word Perseids (mythology), Perseids (), the sons of Perseus in Greek mythology. Characteristics The stream of debris is called the Perseid cloud and stretches along the orbit of the comet Swift–Tuttle. The cloud consists of particles ejected by the comet as it travels on its 133-year orbit. Most of the particles have been part of the cloud for around a thousand years. However, there is also a relatively young filament of dust in the stream that was pulled off the comet in 1865, which can give an early mini-peak the da ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kleť Observatory
Kleť Observatory (; obs. code: 046) is an astronomical observatory in the Czech Republic. It is situated in South Bohemia, south of the summit of Mount Kleť, near the town of České Budějovice. Constructed in 1957, the observatory is at an altitude of and has around 150 clear nights per year. Astronomers Astronomer Antonín Mrkos became director of Kleť Observatory in 1965. Two main astronomers who currently work at Kleť Observatory are Jana Tichá and her husband Miloš Tichý. Instruments The observatory has two primary telescopes: * 1.06-m KLENOT telescope (since 2002) * 0.57-m f/5.2 reflector (since 1993) Gallery File:Mount Klet.jpg, Summit of Mount Kleť, the observatory is visible on the left File:Jana Tichá, Miloš Tichý and KLENOT.jpg, Jana Tichá, Miloš Tichý and KLENOT in 2004 File:Výlet na Klet - 28 srpna 2009 116.JPG, Telescope Discoveries As of 2015 over a thousand asteroids were discovered at Kleť Observatory, as well as comet 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zdeňka Vávrová
Zdeňka Vávrová (born 1945) is a Czech astronomer. She co-discovered periodic comet 134P/Kowal-Vávrová. She had observed it as an asteroid, which received the provisional designation 1983 JG, without seeing any cometary coma. However, later images by Charles T. Kowal showed a coma. The Minor Planet Center credits her with the discovery of 115 numbered minor planets. The Florian main-belt asteroid 3364 Zdenka, discovered by Antonín Mrkos in 1984, was named in her honor and for the 20 years she had been participating in Kleť Observatory's minor planet astrometry Astrometry is a branch of astronomy that involves precise measurements of the positions and movements of stars and other Astronomical object, celestial bodies. It provides the kinematics and physical origin of the Solar System and this galaxy, th ... program. Naming citation was published on 26 February 1994 (). List of discovered minor planets See also * References External li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
6822 Horálek
68 may refer to: * 68 (number) * one of the years 68 BC, AD 68, 1968, 2068 * 68 Publishers, a Czech-Canadian publishing firm * '68 (band), an American rock band * ''68'' (album), a 2013 album by Robert Wyatt * '68 (comic book) a comic book series from Image Comics * ''68'' (film), a 1988 American film * 68 Leto, a main-belt asteroid See also *List of highways numbered 68 The following highways are numbered 68: Australia * Channel Highway (Tasmania) * NSW (Multiple routes) Canada * Alberta Highway 68 * Manitoba Highway 68 * Ontario Highway 68 Chile *Chile Route 68 Greece * Greek National Road 68, EO68 road ... * 1968 (other) {{Numberdis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asteroid
An asteroid is a minor planet—an object larger than a meteoroid that is neither a planet nor an identified comet—that orbits within the Solar System#Inner Solar System, inner Solar System or is co-orbital with Jupiter (Trojan asteroids). Asteroids are rocky, metallic, or icy bodies with no atmosphere, and are broadly classified into C-type asteroid, C-type (carbonaceous), M-type asteroid, M-type (metallic), or S-type asteroid, S-type (silicaceous). The size and shape of asteroids vary significantly, ranging from small rubble piles under a kilometer across to Ceres (dwarf planet), Ceres, a dwarf planet almost 1000 km in diameter. A body is classified as a comet, not an asteroid, if it shows a coma (tail) when warmed by solar radiation, although recent observations suggest a continuum between these types of bodies. Of the roughly one million known asteroids, the greatest number are located between the orbits of Mars and Jupiter, approximately 2 to 4 astronomical unit, AU ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Astronomical Union
The International Astronomical Union (IAU; , UAI) is an international non-governmental organization (INGO) with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach, education, and development through global cooperation. It was founded on 28 July 1919 in Brussels, Belgium and is based in Paris, France. The IAU is composed of individual members, who include both professional astronomers and junior scientists, and national members, such as professional associations, national societies, or academic institutions. Individual members are organised into divisions, committees, and working groups centered on particular subdisciplines, subjects, or initiatives. the Union had 85 national members and 12,734 individual members, spanning 90 countries and territories. Among the key activities of the IAU is serving as a forum for scientific conferences. It sponsors nine annual symposia and holds a triannual General Assembly that sets policy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomy Picture Of The Day
Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics, physics, and chemistry in order to explain their origin and their overall evolution. Objects of interest include planets, moons, stars, nebulae, galaxies, meteoroids, asteroids, and comets. Relevant phenomena include supernova explosions, gamma ray bursts, quasars, blazars, pulsars, and cosmic microwave background radiation. More generally, astronomy studies everything that originates beyond Earth's atmosphere. Cosmology is a branch of astronomy that studies the universe as a whole. Astronomy is one of the oldest natural sciences. The early civilizations in recorded history made methodical observations of the night sky. These include the Egyptians, Babylonians, Greeks, Indians, Chinese, Maya, and many ancient indigenous peoples of the Americas. In the past, astronomy included disciplines as diverse as astrometry, celestial navigati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the federal government of the United States, US federal government responsible for the United States's civil list of government space agencies, space program, aeronautics research and outer space, space research. National Aeronautics and Space Act, Established in 1958, it succeeded the National Advisory Committee for Aeronautics (NACA) to give the American space development effort a distinct civilian orientation, emphasizing peaceful applications in space science. It has since led most of America's space exploration programs, including Project Mercury, Project Gemini, the 1968–1972 Apollo program missions, the Skylab space station, and the Space Shuttle. Currently, NASA supports the International Space Station (ISS) along with the Commercial Crew Program and oversees the development of the Orion (spacecraft), Orion spacecraft and the Sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ESO Messenger
The European Organisation for Astronomical Research in the Southern Hemisphere, commonly referred to as the European Southern Observatory (ESO), is an intergovernmental research organisation made up of 16 member states for ground-based astronomy. Created in 1962, ESO has provided astronomers with state-of-the-art research facilities and access to the southern sky. The organisation employs over 750 staff members and receives annual member state contributions of approximately €162 million. Its observatories are located in northern Chile. ESO has built and operated some of the largest and most technologically advanced telescopes. These include the 3.6 m New Technology Telescope, an early pioneer in the use of active optics, and the Very Large Telescope (VLT), which consists of four individual 8.2 m telescopes and four smaller auxiliary telescopes which can all work together or separately. The Atacama Large Millimeter Array observes the universe in the millimetre an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zodiacal Band
The zodiacal light (also called false dawn when seen dawn, before sunrise) is a faint glow of photon diffusion, diffuse sunlight light scattering by particles, scattered by interplanetary dust. Brighter around the Sun, it appears in a particularly dark night sky to extend from the Sun's direction in a roughly triangular shape along the zodiac, and appears with less intensity and visibility along the whole ecliptic as the zodiacal band. Zodiacal light spans the entire sky and contributes to the natural light of a clear and moonless night sky. A related phenomenon is ''gegenschein'' (or ''counterglow''), sunlight backscattered from the interplanetary dust, which appears antisolar point, directly opposite to the Sun as a faint but slightly brighter oval glow. Zodiacal light contributes to the natural light of the sky, though since zodiacal light is very faint, it is often outshone and rendered invisible by moonlight or light pollution. The interplanetary dust in the Solar System ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
La Silla Observatory
La Silla Observatory is an astronomical observatory in Chile with three telescopes built and operated by the European Southern Observatory (ESO). Several other telescopes are also located at the site and are partly maintained by ESO. The observatory is one of the largest in the Southern Hemisphere and was the first in Chile to be used by ESO. The La Silla telescopes and instruments are located 150 km northeast of La Serena, on the outskirts of the Atacama Desert, one of the driest and most remote areas in the world. Like other observatories in this region, La Silla is far from sources of light pollution and, like the Paranal Observatory—home to the Very Large Telescope—it has some of the darkest night skies on Earth. History Following the decision in 1963 to approve Chile as the site for the ESO observatory, scouting parties were sent to various locations to assess their suitability. The site that was decided upon was La Silla in the southern part of the Atacama Des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
