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18 Delphini B
18 Delphini b (abbreviated 18 Del b), formally named Arion , is an extrasolar planet approximately 249 light-years away in the constellation of Delphinus. The 993-day period planet orbits the yellow giant star 18 Delphini. A very massive and dense planet with a minimum mass of , it was discovered on February 19, 2008, by Bun'ei Sato. In July 2014, the International Astronomical Union launched NameExoWorlds, a process for giving proper names to certain exoplanets and their host stars. The process involved public nomination and voting for the new names. In December 2015, the IAU announced the name Arion for this planet. The winning name was submitted by the Tokushima Prefectural Jonan High School Science Club of Japan. Arion was a genius of poetry and music in ancient Greece. According to legend, his life was saved at sea by dolphins after attracting their attention by the playing of his kithara ('Delphinus' is Latin Latin (, or , ) is a classical language belonging to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bun'ei Sato
was a after ''Kōchō'' and before ''Kenji (Japanese era), Kenji.'' This period spanned the years from February 1264 to April 1275. The reigning emperor was . Change of era * 1264 ; 1264: The new era name was created to mark an event or a number of events. The previous era ended and a new one commenced in ''Kōchō'' 4. Events of the ''Bun'ei'' era * March 6, 1274 (''Bun'ei 11, 26th day of the 1st month''): In the 15th year of Kameyama''-tennō''s reign (亀山天皇15年), the emperor abdicated; and the succession (''senso'') was received by his cousin. * May 4, 1274 (''Bun'ei 11, 26th day of the 3rd month''): Emperor Go-Uda is said to have acceded to the throne (''sokui''). The retired Emperor Kameyama continued to exercise power as Cloistered rule, cloistered emperor. * November 19, 1274 (''Bun'ei 11, 20th day of the 10th month''): Battle of Bun'ei -- Kublai Khan's Mongols, Mongol forces land at Hakata Bay near Fukuoka in Kyūshū. After landing and some armed skirmishes ... [...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] |
Exoplanets Discovered In 2008
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] |
Giant Planets
The giant planets constitute a diverse type of planet much larger than Earth. They are usually primarily composed of low-boiling-point materials (volatiles), rather than rock or other solid matter, but massive solid planets can also exist. There are four known giant planets in the Solar System: Jupiter, Saturn, Uranus and Neptune. Many extrasolar giant planets have been identified orbiting other stars. They are also sometimes called jovian planets, after Jupiter ("Jove" being another name for the Roman god "Jupiter"). They are also sometimes known as gas giants. However, many astronomers now apply the latter term only to Jupiter and Saturn, classifying Uranus and Neptune, which have different compositions, as ice giants. Both names are potentially misleading: all of the giant planets consist primarily of fluids above their critical points, where distinct gas and liquid phases do not exist. The principal components are hydrogen and helium in the case of Jupiter and Saturn, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Delphinus (constellation)
Delphinus (Pronounced or ) is a small constellation in the Northern Celestial Hemisphere, close to the celestial equator. Its name is the Latin version for the Greek word for dolphin (). It is one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and remains one of the 88 modern constellations recognized by the International Astronomical Union. It is one of the smaller constellations, ranked 69th in size. Delphinus' five brightest stars form a distinctive asterism symbolizing a dolphin with four stars representing the body and one the tail. It is bordered (clockwise from north) by Vulpecula, Sagitta, Aquila, Aquarius, Equuleus and Pegasus. Delphinus is a faint constellation with only two stars brighter than an apparent magnitude of 4, Beta Delphini (Rotanev) at magnitude 3.6 and Alpha Delphini (Sualocin) at magnitude 3.8. Mythology Delphinus is associated with two stories from Greek mythology. According to myth, the first Greek god Poseidon wanted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extrasolar Planets Encyclopaedia
The Extrasolar Planets Encyclopaedia is an astronomy website, founded in Paris, France at the Meudon Observatory by Jean Schneider in February 1995, which maintains a database of all the currently known and candidate extrasolar planets, with individual pages for each planet and a full list interactive catalog spreadsheet. The main catalogue comprises databases of all of the currently confirmed extrasolar planets as well as a database of unconfirmed planet detections. The databases are frequently updated with new data from peer-reviewed publications and conferences. In their respective pages, the planets are listed along with their basic properties, including the year of planet's discovery, mass, radius, orbital period, semi-major axis, eccentricity, inclination, longitude of periastron, time of periastron, maximum time variation, and time of transit, including all error range values. The individual planet data pages also contain the data on the parent star, including name, di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xi Aquilae B
Xi Aquilae b (abbreviated ξ Aquilae b, ξ Aql b), formally named Fortitudo , is an extrasolar planet approximately 200 light-years from the Sun in the constellation of Aquila. The planet was discovered orbiting the yellow giant star Xi Aquilae in 2008. The planet has a minimum mass of 2.8 Jupiter and a period of 137 days. Name Following its discovery the planet was designated Xi Aquilae b. In July 2014 the International Astronomical Union launched NameExoWorlds, a process for giving proper names to certain exoplanets and their host stars. The process involved public nomination and voting for the new names. In December 2015, the IAU announced the winning name was Fortitudo for this planet. The winning name was submitted by Libertyer, a student club at Hosei University of Tokyo, Japan. ''Fortitudo'' is Latin for 'fortitude'. ''Aquila'' is Latin for 'eagle', a symbol of fortitude – emotional and mental strength in the face of adversity. See also * 18 Delphini b 18 Delph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
41 Lyncis B
41 Lyncis b (abbreviated 41 Lyn b), also designated HD 81688 b and named Arkas , is an extrasolar planet approximately 280 light-years from Earth in the constellation of Ursa Major. A gas giant with a minimum mass 2.7 times that of Jupiter, it orbits the K-type star 41 Lyncis with an orbital period of 184 days (corresponding to a semi-major axis of 0.81 AU). It was discovered and announced by Bun'ei Sato on February 19, 2008. Name In July 2014, the International Astronomical Union (IAU) launched NameExoWorlds, a process for giving proper names to certain exoplanets and their host stars. The process involved public nomination and voting for the new names. In December 2015, the IAU announced the name Arkas for this planet. The winning name was submitted by the Okayama Astro Club of Japan. Arkas was the son of Callisto (Ursa Major) in Greek mythology. See also * 18 Delphini b * Xi Aquilae b Xi Aquilae b (abbreviated ξ Aquilae b, ξ Aql b), formally named Fortitudo , is an extraso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latin (language)
Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the Roman Republic it became the dominant language in the Italian region and subsequently throughout the Roman Empire. Even after the fall of Western Rome, Latin remained the common language of international communication, science, scholarship and academia in Europe until well into the 18th century, when other regional vernaculars (including its own descendants, the Romance languages) supplanted it in common academic and political usage, and it eventually became a dead language in the modern linguistic definition. Latin is a highly inflected language, with three distinct genders (masculine, feminine, and neuter), six or seven noun cases (nominative, accusative, genitive, dative, ablative, and vocative), five declensions, four verb conjuga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cithara
The kithara (or Latinized cithara) ( el, κιθάρα, translit=kithāra, lat, cithara) was an ancient Greek musical instrument in the yoke lutes family. In modern Greek the word ''kithara'' has come to mean "guitar", a word which etymologically stems from ''kithara''. The cithara was a seven-stringed professional version of the lyre, which was regarded as a rustic, or folk instrument, appropriate for teaching music to beginners. As opposed to the simpler lyre, the cithara was primarily used by professional musicians, called kitharodes. The cithara's origins are likely Anatolian. popular in the eastern Aegean and ancient Anatolia. Uses Whereas the basic lyra was widely used as a teaching instrument in boys’ schools, the cithara was a virtuoso's instrument, generally known as requiring a great deal of skill. The cithara was played primarily to accompany dance, epic recitations, rhapsodies, odes, and lyric songs. It was also played solo at the receptions, ban ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dolphin
A dolphin is an aquatic mammal within the infraorder Cetacea. Dolphin species belong to the families Delphinidae (the oceanic dolphins), Platanistidae (the Indian river dolphins), Iniidae (the New World river dolphins), Pontoporiidae (the brackish dolphins), and the extinct Lipotidae (baiji or Chinese river dolphin). There are 40 extant species named as dolphins. Dolphins range in size from the and Maui's dolphin to the and orca. Various species of dolphins exhibit sexual dimorphism where the males are larger than females. They have streamlined bodies and two limbs that are modified into flippers. Though not quite as flexible as seals, some dolphins can briefly travel at speeds of per hour or leap about . Dolphins use their conical teeth to capture fast-moving prey. They have well-developed hearing which is adapted for both air and water. It is so well developed that some can survive even if they are blind. Some species are well adapted for diving to great depths. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arion
Arion (; grc-gre, Ἀρίων; fl. c. 700 BC) was a kitharode in ancient Greece, a Dionysiac poet credited with inventing the dithyramb. The islanders of Lesbos claimed him as their native son, but Arion found a patron in Periander, tyrant of Corinth. Although notable for his musical inventions, Arion is chiefly remembered for the fantastic myth of his kidnapping by pirates and miraculous rescue by dolphins, a folktale motif. Origins Arion was a native of Methymna in Lesbos, and, according to some mythological accounts, a son of Cyclon or of Poseidon and the nymph Oncaea. All traditions about him agree in describing him as a contemporary and friend of Periander, tyrant of Corinth, so that he must have lived about BC 700. He appears to have spent a great part of his life at the court of Periander, but respecting his life and his poetical or musical productions, scarcely anything is known beyond the story of his escape from the sailors with whom he sailed from Sicily to Cori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
