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N.P. Wieth-Knudsen Observatory
N.P. Wieth-Knudsen Observatory is next to Tisvilde Hegn, two hours away from Copenhagen, Denmark, at Margot Nyholms vej 19, 3220 Tisvildeleje, on the outskirts of a small residential area in Tisvilde, away from artificial light generated by larger cities. It was constructed in 1959 by Dr. Niels Palle Wieth-Knudsen (1909–1993), who used the observatory until his death. His biggest contribution to astronomy was the observation of lunar occultations, during which the moon passes in front of stars, the data from which is then used in the accurate determination of the lunar position. This became important during the 1969 Apollo Moon landings. In 1999, Wieth-Knudsen's widow, Inger Wieth-Knudsen (1914–2004), presented the building as a gift to the Danish Astronomical Society. The observatory holds a 16-inch computer-controlled telescope. On the observatory grounds there are two radio telescopes and a series of platforms for smaller telescopes, including a solar telescope. The public ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copenhagen, Denmark
Copenhagen ( or .; da, København ) is the capital and most populous city of Denmark, with a proper population of around 815.000 in the last quarter of 2022; and some 1.370,000 in the urban area; and the wider Copenhagen metropolitan area has 2,057,142 people. Copenhagen is on the islands of Zealand and Amager, separated from Malmö, Sweden, by the Øresund strait. The Øresund Bridge connects the two cities by rail and road. Originally a Viking fishing village established in the 10th century in the vicinity of what is now Gammel Strand, Copenhagen became the capital of Denmark in the early 15th century. Beginning in the 17th century, it consolidated its position as a regional centre of power with its institutions, defences, and armed forces. During the Renaissance the city served as the de facto capital of the Kalmar Union, being the seat of monarchy, governing the majority of the present day Nordic region in a personal union with Sweden and Norway ruled by the Danis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tisvildeleje
Tisvildeleje is the village and coastal part of the area known as Tisvilde located on the north coast of the island Zealand (Sjælland) in Denmark 60 km/40miles north of Copenhagen in Region Hovedstaden. To the West, Tisvildeleje is bordered by the protected plantation of Tisvilde Hegn egn=fence which is Denmark’s fifth largest forest. The beaches of Tisvildeleje, are known for their white sands and soft dunes. The beach uses large boulders as rock armour and groynes for sea defense in most places. A sea wall also protects a stretch of the coast. Etymology The name "Tisvilde" is derived from "Ti's vælde", meaning ''a place dedicated to the God Tyr''. Where the church of Tibirke Kirke is situated nowadays, there was once a prehistoric “vi” meaning a holy place or place of sacrifice. In prehistoric times, humans were sacrificed here. At the foot of the church, is a spring which may have been a place of pilgrimage in days of old. "Leje" roughly translates as ''plain'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tisvilde
Tisvilde is a small town with a population of 1,444 (1 January 2022) BY3: Population 1. January by rural and urban areas, area and population density The Mobile Statbank from Statistics Denmark located on the north coast of the island (Sjælland) in in , northeast o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Occultation
An occultation is an event that occurs when one object is hidden from the observer by another object that passes between them. The term is often used in astronomy, but can also refer to any situation in which an object in the foreground blocks from view (occults) an object in the background. In this general sense, occultation applies to the visual scene observed from low-flying aircraft (or computer-generated imagery) when foreground objects obscure distant objects dynamically, as the scene changes over time. If the closer body does not entirely conceal the farther one, the event is called a ''transit''. Both transit and occultation may be referred to generally as ''occlusion''; and if a shadow is cast onto the observer, it is called an eclipse. The symbol for an occultation, and especially a solar eclipse, is file:Occultation symbol.svg (U+1F775 🝵). Occultations by the Moon The term occultation is most frequently used to describe lunar occultations, those relativ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Danish Astronomical Society
The Danish Astronomical Society (Dansk Astronomisk Selskab) was founded in 1916 'with the purpose of acting for the spread of knowledge and interest in astronomy and astronomical research'. According to its own description, its address varies. The Society is open to anyone with a desire to learn more about astronomy, and gives members access to talks and lectures by astronomers and astrophysicists, and allows them to use equipment at the N.P. Wieth-Knudsen Observatory in Tisvilde to observe astronomical phenomena. It also disseminates news on upcoming conferences, lectures and events, as well as general information on upcoming astronomical events such as eclipses and comets, and lists of observatories and other facilities. The current president of Danish Astronomical Society is Majken B. E. Christensen. See also * List of astronomical societies A list of notable groups devoted to promoting astronomy research and education. Africa * African Astronomical Society South Africa *Astr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Telescopes
A radio telescope is a specialized antenna and radio receiver used to detect radio waves from astronomical radio sources in the sky. Radio telescopes are the main observing instrument used in radio astronomy, which studies the radio frequency portion of the electromagnetic spectrum emitted by astronomical objects, just as optical telescopes are the main observing instrument used in traditional optical astronomy which studies the light wave portion of the spectrum coming from astronomical objects. Unlike optical telescopes, radio telescopes can be used in the daytime as well as at night. Since astronomical radio sources such as planets, stars, nebulas and galaxies are very far away, the radio waves coming from them are extremely weak, so radio telescopes require very large antennas to collect enough radio energy to study them, and extremely sensitive receiving equipment. Radio telescopes are typically large parabolic ("dish") antennas similar to those employed in tracking and c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solar Telescope
A solar telescope is a special purpose telescope used to observe the Sun. Solar telescopes usually detect light with wavelengths in, or not far outside, the visible spectrum. Obsolete names for Sun telescopes include heliograph and photoheliograph. Professional solar telescopes Solar telescopes need optics large enough to achieve the best possible diffraction limit but less so for the associated light-collecting power of other astronomical telescopes. However, recently newer narrower filters and higher framerates have also driven solar telescopes towards photon-starved operations. Both the Daniel K. Inouye Solar Telescope as well as the proposed European Solar Telescope (EST) have larger apertures not only to increase the resolution, but also to increase the light-collecting power. Because solar telescopes operate during the day, seeing is generally worse than for night-time telescopes, because the ground around the telescope is heated which causes turbulence and degrades the res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Astronomical Observatories
This is a list of astronomical observatories ordered by name, along with initial dates of operation (where an accurate date is available) and location. The list also includes a final year of operation for many observatories that are no longer in operation. While other sciences, such as volcanology and meteorology, also use facilities called observatories for research and observations, this list is limited to observatories that are used to observe celestial objects. Astronomical observatories are mainly divided into four categories: space-based, airborne, ground-based, and underground-based. Many modern telescopes and observatories are located in space to observe astronomical objects in wavelengths of the electromagnetic spectrum that cannot penetrate the Earth's atmosphere (such as ultraviolet radiation, X-rays, and gamma rays) and are thus impossible to observe using ground-based telescopes. Being above the atmosphere, these space observatories can also avoid the effects of atmo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
