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HD 206610 B
HD 206610 b is an extrasolar planet orbiting the K-type star HD 206610 approximately 633 light years away in the constellation Aquarius. The planet HD 206610 b is named Naron. The name was selected in the NameExoWorlds campaigns by Bosnia and Herzegovina during the 100th anniversary of the IAU. Naron is one of the names given to the Neretva river in Herzegovina originating with the Celts who called it Nera Etwa which means the Flowing Divinity. The host star HD 206610 is called Bosona. Bosona is the name given to the territory of Bosnia in the 10th century. See also * HD 4313 b * HD 136418 b * HD 180902 b * HD 181342 b * HD 212771 b HD 212771 b is an extrasolar planet orbiting the G-type star HD 212771 approximately 364 light years away in the constellation Aquarius. Nomenclature HD 212771 b is named Victoriapeak. The name was selected in the NameExoWorlds campaign by ... References External links * Exoplanets discovered in 2009 Exoplanets detected by rad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keck Observatory
The W. M. Keck Observatory is an astronomical observatory with two telescopes at an elevation of 4,145 meters (13,600 ft) near the summit of Mauna Kea in the U.S. state of Hawaii. Both telescopes have aperture primary mirrors, and when completed in 1993 (Keck 1) and 1996 (Keck 2) were the largest astronomical telescopes in the world. They are currently the 3rd and 4th largest. Overview With a concept first proposed in 1977, telescope designers at the University of California, Berkeley (Terry Mast) and Lawrence Berkeley Laboratory (Jerry Nelson) had been developing the technology necessary to build a large, ground-based telescope. With a design in hand, a search for the funding began. In 1985, Howard B. Keck of the W. M. Keck Foundation gave $70 million to fund the construction of the Keck I telescope, which began in September 1985, with first light occurring on 24 November 1990 using nine of the eventual 36 segments. With construction of the first telescope well ad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Celts
The Celts (, see pronunciation for different usages) or Celtic peoples () are. "CELTS location: Greater Europe time period: Second millennium B.C.E. to present ancestry: Celtic a collection of Indo-European peoples. "The Celts, an ancient Indo-European people, reached the apogee of their influence and territorial expansion during the 4th century bc, extending across the length of Europe from Britain to Asia Minor."; . " e Celts, were Indo-Europeans, a fact that explains a certain compatibility between Celtic, Roman, and Germanic mythology."; . "The Celts and Germans were two Indo-European groups whose civilizations had some common characteristics."; . "Celts and Germans were of course derived from the same Indo-European stock."; . "Celt, also spelled Kelt, Latin Celta, plural Celtae, a member of an early Indo-European people who from the 2nd millennium bce to the 1st century bce spread over much of Europe."; in Europe and Anatolia, identified by their use of Celtic langua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exoplanets Detected By Radial Velocity
An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917 but was not recognized as such. The first confirmation of detection occurred in 1992. A different planet, initially detected in 1988, was confirmed in 2003. There are many methods of detecting exoplanets. Transit photometry and Doppler spectroscopy have found the most, but these methods suffer from a clear observational bias favoring the detection of planets near the star; thus, 85% of the exoplanets detected are inside the tidal locking zone. In several cases, multiple planets have been observed around a star. About 1 in 5 Sun-like starsFor the purpose of this 1 in 5 statistic, "Sun-like" means G-type star. Data for Sun-like stars was not available so this statistic is an extrapolation from data about K-type stars. have an "Earth-sized"For the purpose of this 1 in 5 statistic, Earth-sized means 1–2 Earth radii. planet in the habitable zone. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exoplanets Discovered In 2009
An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917 but was not recognized as such. The first confirmation of detection occurred in 1992. A different planet, initially detected in 1988, was confirmed in 2003. There are many methods of detecting exoplanets. Transit photometry and Doppler spectroscopy have found the most, but these methods suffer from a clear observational bias favoring the detection of planets near the star; thus, 85% of the exoplanets detected are inside the tidal locking zone. In several cases, multiple planets have been observed around a star. About 1 in 5 Sun-like starsFor the purpose of this 1 in 5 statistic, "Sun-like" means G-type star. Data for Sun-like stars was not available so this statistic is an extrapolation from data about K-type stars. have an "Earth-sized"For the purpose of this 1 in 5 statistic, Earth-sized means 1–2 Earth radii. planet in the habitable zone. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HD 212771 B
HD 212771 b is an extrasolar planet orbiting the G-type star HD 212771 approximately 364 light years away in the constellation Aquarius. Nomenclature HD 212771 b is named Victoriapeak. The name was selected in the NameExoWorlds campaign by Hong Kong, during the 100th anniversary of the IAU. It is named after the Victoria Peak, the highest point on Hong Kong Island. The host star HD 212771 is named Lionrock, after the Lion Rock. Properties Orbit HD 212771 b's orbit period and distance are similar to Earth's, with the values being 380 days and 1.19 AU respectively. It orbits in a nearly perfect circular orbit compared to long period gas giants. Characteristics Due to the unknown orbital parameters, the planets true mass is not known, with a minimum of 2.39 times Jupiter's mass. HD 212771 b's radius is unknown, so NASA The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HD 181342 B
HD 181342 b is an extrasolar planet orbiting the K-type star HD 181342 approximately 394 light years away in the constellation Sagittarius. The planet HD 181342 b is named Dopere. The name was selected in the NameExoWorlds campaign by Senegal, during the 100th anniversary of the IAU. Dopere is an expansive historical area in the north of Senegal where Belel (name of HD 181342) was located. See also * HD 4313 b * HD 206610 b * HD 180902 b * HD 136418 b * HD 212771 b HD 212771 b is an extrasolar planet orbiting the G-type star HD 212771 approximately 364 light years away in the constellation Aquarius. Nomenclature HD 212771 b is named Victoriapeak. The name was selected in the NameExoWorlds campaign by ... References External links * Exoplanets discovered in 2009 Exoplanets detected by radial velocity Sagittarius (constellation) Exoplanets with proper names {{extrasolar-planet-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HD 180902 B
HD 180902 b is an extrasolar planet orbiting the K-type star HD 180902 approximately 342 light years away in the constellation Sagittarius. Discovery HD 180902 b, along with other planets, was discovered in 2010 by scientists at the Keck Observatory. These planets were discovered via doppler spectroscopy, which is detecting exoplanets using the star's wobble. Properties Orbit HD 180902 b takes 510 days to orbit its parent star, which is longer than Earth's orbital period, which is 365 days. It orbits at a distance similar to Earth from the sun. HD 180902 orbits with mild eccentricity. Characteristics HD 180902 b has a minimum mass of 1.685 times the mass of Jupiter, but since its inclination is not known, the true mass of the planet cannot be detected. According to a theoretical search by the observatory, it may have a radius that is 22.1% larger than Jupiter. See also * HD 4313 b * HD 181342 b * HD 206610 b * HD 136418 b * HD 212771 b HD 212771 b is an extra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HD 136418 B
HD 136418 b, also known by its proper name Awasis, is an extrasolar planet orbiting the G-type star HD 136418 approximately 320 light years away in the constellation Boötes It has a notable orbit, staying within the known habitable zone. It also has a star very similar in temperature as the Sun. It was named "Awasis" by representatives of Canada in the 2019 NameExoWorlds contest held by the IAU, named after the Cree word for "child". In the same competition, The planet's parent star HD 136418 was named Nikawiy after the Cree word for "mother". See also * HD 4313 b * HD 181342 b * HD 206610 b * HD 180902 b * HD 212771 b HD 212771 b is an extrasolar planet orbiting the G-type star HD 212771 approximately 364 light years away in the constellation Aquarius. Nomenclature HD 212771 b is named Victoriapeak. The name was selected in the NameExoWorlds campaign by ... References External links * Exoplanets discovered in 2009 Exoplanets detected by radial velocity ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HD 4313 B
HD 4313 b is an extrasolar planet orbiting the K-type star HD 4313 approximately 447 light years away in the constellation Pisces. This planet was discovered using the Doppler spectroscopy (radial velocity) method. Discovery HD 4313 was discovered by a group of scientist at the Keck Observatory on March 17, 2010 using the Doppler spectroscopy method, which is detecting a planet by the star's change in wobbling. Properties Orbit HD 4313 has an orbital period similar to Earth, with an orbit of approximately, 356 days. Its orbit distance is similar, about 1 AU away from its host star. According to the latest data, this planet has a somewhat eccentric orbit. Physical characteristics HD 4313 has a mass only 92.7% greater than that of Jupiter, but its radius and inclination is unknown, so the true mass and radius can't be studied. A best estimate of the radius is 1.2 times that of Jupiter. See also * HD 181342 b * HD 206610 b * HD 180902 b * HD 136418 b * HD 212771 b HD ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neretva
The Neretva ( sr-cyrl, Неретва, ), also known as Narenta, is one of the largest rivers of the eastern part of the Adriatic basin. Four HE power-plants with large dams (higher than 150,5 metres) provide flood protection, power and water storage. It is recognized for its natural environment and diversity of its landscape. Freshwater ecosystems have suffered from an increasing population and the associated development pressures. One of the most valuable natural resources of Bosnia and Herzegovina and Croatia is its freshwater resource, contained by an abundant wellspring and clear rivers. Situated between the major regional rivers (Drina river on the east, Una river on the west and the Sava river) the Neretva basin contains the most significant source of drinking water. The Neretva is notable among rivers of the Dinaric Alps region, especially regarding its diverse ecosystems and habitats, flora and fauna, cultural and historic heritage. Its name has been suggested to co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doppler Spectroscopy
Doppler spectroscopy (also known as the radial-velocity method, or colloquially, the wobble method) is an indirect method for finding extrasolar planets and brown dwarfs from radial-velocity measurements via observation of Doppler shifts in the spectrum of the planet's parent star. 1,018 extrasolar planets (about 19.5% of the total) have been discovered using Doppler spectroscopy, as of November 2022. History Otto Struve proposed in 1952 the use of powerful spectrographs to detect distant planets. He described how a very large planet, as large as Jupiter, for example, would cause its parent star to wobble slightly as the two objects orbit around their center of mass. He predicted that the small Doppler shifts to the light emitted by the star, caused by its continuously varying radial velocity, would be detectable by the most sensitive spectrographs as tiny redshifts and blueshifts in the star's emission. However, the technology of the time produced radial-velocity meas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Astronomical Union
The International Astronomical Union (IAU; french: link=yes, Union astronomique internationale, UAI) is a nongovernmental organisation with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach, education, and development through global cooperation. It was founded in 1919 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. As of 2018, the Union had over 13,700 individual members, spanning 90 countries, and 82 national members. 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] |
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