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Rozhen Observatory
Rozhen Observatory ( bg, Национална астрономическа обсерватория - Рожен, ''НАО-Рожен''; en, National Astronomical Observatory - Rozhen, ''NAO-Rozhen''), also known as the Bulgarian National Astronomical Observatory, is an astronomical observatory, located in the Smolyan Province, 90 kilometers south of the city of Plovdiv, Bulgaria. The nearest town, Chepelare, is 15 kilometers away. The observatory is owned and operated by the Institute of Astronomy of the Bulgarian Academy of Sciences (BAS). It was officially opened on 13 March 1981, almost 20 years after Bogomil Kovachev – a professor of astronomy at BAS, known as its founder – had started working towards that goal. The Observatory is the largest in Southeastern Europe and has an active team of about 50 astronomers. It is the principal center for astronomical research in Bulgaria. The minor planet 6267 Rozhen, was discovered at, and named after the observatory. With its to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rozhen Dome
Rozhen ( bg, Рожен) may refer to: * Rozhen, Bulgaria, a village in Sandanski municipality, Blagoevgrad Province, Bulgaria ** Rozhen Monastery, located nearby * Rozhen, an area in the Rhodope Mountains, in Smolyan municipality, Smolyan Province, Bulgaria ** Rozhen National Folklore Fair, organized in the area ** Rozhen Observatory Rozhen Observatory ( bg, Национална астрономическа обсерватория - Рожен, ''НАО-Рожен''; en, National Astronomical Observatory - Rozhen, ''NAO-Rozhen''), also known as the Bulgarian National Astron ..., located nearby *** 6267 Rozhen, an asteroid named after the observatory {{disambig ... [...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] |
Toruń Centre For Astronomy
The Institute of Astronomy of Nicolaus Copernicus University in Toruń, known prior to 1 October 2019 in scientific publications as the Toruń Centre for Astronomy, is an optical and radio observatory located at () in Piwnice, about 15 km north of Toruń, Poland. It houses two single-dish antenna telescopes, 32 metres and 15 metres in diameter, as well as the largest Polish optical telescope – 90 cm Schmidt-Cassegrain camera. The facility is operated by the Nicolaus Copernicus University. Also, photometry using 60 cm Cassegrain telescope is made and radio measurements of the Sun at 127 MHz frequency have been recorded on a daily basis since 1958 using a 23 m interferometer. Radio astronomy Since 1981 the observatory has been a part of worldwide network of radio telescopes participating in VLBI (Very Long Baseline Interferometry). The 32 m telescope is a 620-ton construction designed by Zygmunt Bujakowski based on initial geometric pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jena Observatory
Astrophysikalisches Institut und Universitäts-Sternwarte Jena (AIU Jena, Astrophysical Institute and University Observatory Jena, or simply Jena Observatory) is an astronomical observatory owned and operated by Friedrich Schiller University of Jena. It is located in Großschwabhausen close to Jena, Germany. WASP-3c & TTV Transit Timing Variation (TTV), a variation on the transit method, was used to discover an exoplanet WASP-3c by Rozhen Observatory, Jena Observatory, and Toruń Centre for Astronomy.http://www.scientificcomputing.com/news-DS-Planet-Hunting-Finding-Earth-like-Planets-071910.aspx "Planet Hunting: Finding Earth-like Planets" See also * 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 ... References External links Jena ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WASP-3c
WASP-3 is a magnitude 10 yellow-white dwarf star located about 800 light-years away in the Lyra constellation. It appears to be variable; it "passed from a less active (log R'_hk=-4.95) to a more active (log R'_hk=-4.8) state between 2007 and 2010". Planetary system The extrasolar planet WASP-3b was detected by the SuperWASP project in 2007. The William Herschel Telescope had confirmed it was a planet by 2008. In 2010, researchers proposed a second planet orbiting WASP-3. But in 2012 this proposal was debunked. See also * SuperWASP * WASP-4 WASP-4 is a G-type main sequence star approximately 891 light-years away in the constellation of Phoenix. Despite its advanced age, the star is rotating rapidly, being spun up by the tides raised by a giant planet on close orbit. Plan ... References External links * {{Stars of Lyra Lyra (constellation) F-type subgiants Planetary transit variables Planetary systems with one confirmed planet 3 J1834 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transit Timing Variation
Transit-timing variation is a method for detecting exoplanets by observing variations in the timing of a transit. This provides an extremely sensitive method capable of detecting additional planets in the system with masses potentially as small as that of Earth. In tightly packed planetary systems, the gravitational pull of the planets among themselves causes one planet to accelerate and another planet to decelerate along its orbit. The acceleration causes the orbital period of each planet to change. Detecting this effect by measuring the change is known as transit-timing variations. "Timing variation" asks whether the transit occurs with strict periodicity or if there's a variation. The first significant detection of a non-transiting planet using transit-timing variations was carried out with NASA's Kepler telescope. The transiting planet Kepler-19b shows transit-timing variation with an amplitude of 5 minutes and a period of about 300 days, indicating the presence of a second p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bogomil Kovachev In 1987
Bogomilism (Bulgarian and Macedonian: ; sh-Latn-Cyrl, separator=" / ", bogumilstvo, богумилство) was a Christian neo-Gnostic or dualist sect founded in the First Bulgarian Empire by the priest Bogomil during the reign of Tsar Peter I in the 10th century. It most probably arose in what is today the region of Macedonia. The Bogomils called for a return to what they considered to be early spiritual teaching, rejecting the ecclesiastical hierarchy. Their primary political tendencies were resistance to the state and church authorities. This helped the movement spread quickly in the Balkans, gradually expanding throughout the Byzantine Empire and later reaching Kievan Rus', Bosnia (Bosnian Church), Dalmatia, Serbia, Italy, and France (Cathars). The Bogomils were dualists or Gnostics in that they believed in a world within the body and a world outside the body. They did not use the Christian cross, nor build churches, as they revered their gifted form and considered th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
6267 Rozhen
6267 Rozhen, provisional designation , is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. In 1987, the asteroid was discovered by Eric Elst at Rozhen Observatory, Bulgaria, and was later named after the discovering observatory. Discovery ''Rozhen'' was discovered on 20 September 1987, by Belgian astronomer Eric Elst at Rozhen Observatory near Smoljan, Bulgaria. For four days, between 27 and 31 January 2005, the body was briefly and erroneously renamed 6267 Smolyan. In November 1949, a precovery was taken at Palomar Observatory, extending the body's observation arc by 38 years prior to its official discovery observation at Rozhen. Orbit and classification The S-type asteroid is a member of the Flora family, one of the largest groups of stony asteroids in the main-belt. It orbits the Sun in the inner main-belt at a distance of 2.0–2.4 AU once every 3 years and 2 months (1,161 days). Its orbit has an eccentri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulgarian Academy Of Sciences
The Bulgarian Academy of Sciences (abbreviated BAS; bg, Българска академия на науките, ''Balgarska akademiya na naukite'', abbreviated ''БАН'') is the National Academy of Bulgaria, established in 1869. The Academy, with headquarters in Sofia, is autonomous and consists of a Society of Academicians, Correspondent Members and Foreign Members. It publishes and circulates different scientific works, encyclopaedias, dictionaries and journals, and runs its own publishing house. The activities are distributed in three main branches: ''Natural, mathematical and engineering sciences''; ''Biological, medical and agrarian sciences'' and ''Social sciences, humanities and art''. They are structured in 42 independent scientific institutes, and a dozen of laboratories and other sections. Julian Revalski has been the president of the BAS since 2016. As of 2021, its budget was 117,8 million leva (€60,2 million). History As Bulgaria was part of the Ottoman E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Institute Of Astronomy Of The Bulgarian Academy Of Sciences
The Institute of Astronomy of the Bulgarian Academy of Sciences is a leading Bulgarian research facility in the field of astronomy and astrophysics, located in Sofia, Bulgaria. The institute co-operates closely with the other two institutions involved in the same field of research in the country - the Department of Astronomy at the Faculty of Physics of Sofia University and the Astronomical centre at the Faculty of Natural Sciences of Shumen University. It owns and operates the Bulgarian National Rozhen Observatory located at an altitude of 1750 m in the Rhodopi mountains in south Bulgaria, as well as the Belogradchik Observatory situated at 650 m at the foot of the Western Balkan Mountains in north-west Bulgaria. The institute was inaugurated in 1958 as an independent section of the larger Institute of Physics of the Bulgarian Academy of Sciences The Bulgarian Academy of Sciences (abbreviated BAS; bg, Българска академия на науките, ''Balgarska ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plovdiv
Plovdiv ( bg, Пловдив, ), is the second-largest city in Bulgaria, standing on the banks of the Maritsa river in the historical region of Thrace. It has a population of 346,893 and 675,000 in the greater metropolitan area. Plovdiv is the cultural capital of Bulgaria and was the European Capital of Culture in 2019. It is an important economic, transport, cultural, and educational center. Plovdiv joined the UNESCO Global Network of Learning Cities in 2016. Plovdiv is situated in a fertile region of south-central Bulgaria on the two banks of the Maritsa River. The city has historically developed on seven syenite hills, some of which are high. Because of these hills, Plovdiv is often referred to in Bulgaria as "The City of the Seven Hills". There is evidence of habitation in the area dating back to the 6th millennium BCE, when the first Neolithic settlements were established. The city was subsequently a local Thracians, Thracian settlement, later being conquered and ruled also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
