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Pollux (star)
Pollux is the brightest star in the constellation of Gemini (constellation), Gemini. It has the Bayer designation β Geminorum, which is Latinisation of names, Latinised to Beta Geminorum and abbreviated Beta Gem or β Gem. This is an orange-hued, stellar evolution, evolved red giant located at a distance of 34 light-years, making it the List of nearest giant stars, closest red giant (and giant star) to the Sun. Since 1943, the stellar spectrum, spectrum of this star has served as one of the stable anchor points by which other stars are classified. In 2006 an exoplanet (designated Pollux b or β Geminorum b, later named Thestias) was announced to be orbiting it. Nomenclature ''β Geminorum'' (Latinisation of names, Latinised to ''Beta Geminorum'') is the star's Bayer designation. The traditional name ''Pollux'' refers to the twins Castor and Pollux in Greek mythology, Greek and Roman mythology. In 2016, the International Astronomical Union organized a IAU Working ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gemini (constellation)
Gemini is one of the constellations of the zodiac and is located in the northern celestial hemisphere. It was one of the 48 constellations described by the 2nd century AD astronomer Ptolemy, and it remains one of the 88 modern constellations today. Its name is Latin for ''twins'', and it is associated with the twins Castor and Pollux in Greek mythology. Its old astronomical symbol is (♊︎). Location Gemini lies between Taurus (constellation), Taurus to the west and Cancer (constellation), Cancer to the east, with Auriga (constellation), Auriga and Lynx (constellation), Lynx to the north, Monoceros (constellation), Monoceros and Canis Minor to the south, and Orion (constellation), Orion to the south-west. In classical antiquity, Cancer was the location of the Sun on the June solstice, northern solstice (June 21). During the first century AD, axial precession shifted it into Gemini. In 1990, the location of the Sun at the northern solstice moved from Gemini into Taurus, wh ... [...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] |
38 Leda
38 Leda is a large, dark main-belt asteroid that was discovered by French astronomer J. Chacornac on January 12, 1856, and named after Leda, the mother of Helen of Troy in Greek mythology. In the Tholen classification system, it is categorized as a carbonaceous C-type asteroid, while the Bus asteroid taxonomy system lists it as a Cgh asteroid. The spectra of the asteroid displays evidence of aqueous alteration. Leda has been studied by radar. During 2002, 38 Leda was observed by radar from the Arecibo Observatory. The return signal matched an effective diameter of 116 ± 13 km. This is consistent with some asteroid dimensions computed through other means. Based upon a light curve In astronomy, a light curve is a graph (discrete mathematics), graph of the Radiance, light intensity of a celestial object or region as a function of time, typically with the magnitude (astronomy), magnitude of light received on the ''y''-axis ... that was generated from photometric obs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thestius
In Greek mythology, Thestius (; Ancient Greek: Θέστιος) was a king of Pleuronians in Aetolia. He is not to be confused with Thespius, who was sometimes referred to as "Thestius". The patronymic "Thestias" may refer to one of his daughters, Leda or Althaea, and "Thestiades" to his son Iphiclus. Family Thestius was the son either of Ares by Demonice or Pisidice,Pseudo-Plutarch, ''De fluviis'22.1/ref> or of Agenor (son of Pleuron) possibly by Epicasta. He was the brother of Evenus, Pylus and Molus or of Demonice and Porthaon instead. Thestius was the father of Iphiclus by Leucippe or Eurythemis, daughter of Cleoboea, who was the mother of his other children, Althaea,Antoninus Liberalis2as cited in Nicander's ''Metamorphoses'' Eurypylus, Evippus, Hypermnestra, Leda and Plexippus. In other sources, the mother of Iphiclus, Althaea and Leda was named either Laophonte, daughter of Pleuron or Deidameia, daughter of Perieres. Other sons of Thestius were Comet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patronymic
A patronymic, or patronym, is a component of a personal name based on the given name of one's father, grandfather (more specifically an avonymic), or an earlier male ancestor. It is the male equivalent of a matronymic. Patronymics are used, by custom or official policy, in many countries worldwide, although elsewhere their use has been replaced by or transformed into patronymic surnames. Examples of such transformations include common English surnames such as Johnson (surname), Johnson (son of John). Origins of terms The usual noun and adjective in English is ''patronymic'', but as a noun this exists in free variation alongside ''patronym''. The first part of the word ''patronym'' comes from Greek language, Greek πατήρ ''patēr'' 'father' (Genitive case, GEN πατρός ''patros'' whence the combining form πατρο- ''patro''-); the second part comes from Greek ὄνυμα ''onyma'', a variant form of ὄνομα ''onoma'' 'name'. In the form ''patronymic'', this stand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leda (mythology)
In Greek mythology, Leda (; Ancient Greek: Λήδα ), also rendered Lede, was an Aetolian princess who became queen consort of Sparta through her marriage to King Tyndareus. Zeus fell in love with Leda, and to avoid his wife Hera's jealousy, raped her while disguised as a swan. Leda was named as the mother of four famous children in Greek mythology: Helen of Troy, Clytemnestra, and the twins Castor and Pollux. Leda and the Swan was a popular motif in the visual arts, particularly during the Renaissance. Family Leda is most commonly named as a daughter of the Aetolian king Thestius,Apollodorus, ''Library''3.10/ref>Euripides, ''Iphigenia in Aulis''49/ref> son of Ares, and was occasionally referred to as Thestias. Her mother is disputed, and could have been Leucippe,Hyginus, ''Fabulae''14.3/ref> Deidameia, daughter of Perieres, Eurythemis, daughter of Cleoboea,Apollodorus, ''Library''1.7.10/ref> or Laophonte, daughter of Pleuron.Alcman, fr .15 as cited in Scholia on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australia
Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller islands. It has a total area of , making it the list of countries and dependencies by area, sixth-largest country in the world and the largest in Oceania. Australia is the world's flattest and driest inhabited continent. It is a megadiverse countries, megadiverse country, and its size gives it a wide variety of landscapes and Climate of Australia, climates including deserts of Australia, deserts in the Outback, interior and forests of Australia, tropical rainforests along the Eastern states of Australia, coast. The ancestors of Aboriginal Australians began arriving from south-east Asia 50,000 to 65,000 years ago, during the Last Glacial Period, last glacial period. By the time of British settlement, Aboriginal Australians spoke 250 distinct l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TheSkyNet
''theSkyNet'' was a research project that used volunteer Internet-connected computers to carry out research in astronomy. It was an initiative of the International Centre for Radio Astronomy Research (ICRAR), a joint venture of Curtin University and the University of Western Australia. ''theSkyNet'' had two projects, Sourcefinder and POGS. Both projects have been completed. ''theSkyNet Sourcefinder'' aimed to test and refine automatic radio sourcefinding algorithms in preparation for radio galaxy surveys using the Australian Square Kilometre Array Pathfinder and the Square Kilometre Array. ''theSkyNet POGS'' used Spectral Energy Distribution fitting to calculate characteristics of many galaxies using images taken by the Pan-STARRS PS1 optical telescope in Hawaii. History ''theSkyNet Sourcefinder'' project was introduced publicly on 13 September 2011, operating on a Java-based user platform, processing data using new distributed computing software called Nereus. One year later, ''t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NameExoWorlds
NameExoWorlds (also known as IAU NameExoWorlds) were various projects managed by the International Astronomical Union (I.A.U.) to encourage names to be submitted for astronomical objects, notably exoplanets. The accepted names would later be considered for official adoption by the organization. Projects The first such project (NameExoWorlds I), in 2015, regarded the naming of stars and exoplanets. 573,242 votes were submitted by members by the time the contest closed on October 31, 2015, and the names of 31 exoplanets and 14 stars were selected from these. Many of the names chosen were based on world history, mythology and literature. In June 2019, another such project (NameExoWorlds II), in celebration of the organization's hundredth anniversary, in a project officially called IAU100 NameExoWorlds, welcomed countries of the world to submit names for exoplanets and their host stars. A star with an exoplanet was assigned to each country, and members of the public submitted nam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Percy Shelley
Percy Bysshe Shelley ( ; 4 August 1792 – 8 July 1822) was an English writer who is considered one of the major English Romantic poets. A radical in his poetry as well as in his political and social views, Shelley did not achieve fame during his lifetime, but recognition of his achievements in poetry grew steadily following his death, and he became an important influence on subsequent generations of poets, including Robert Browning, Algernon Charles Swinburne, Thomas Hardy, and W. B. Yeats. American literary critic Harold Bloom describes him as "a superb craftsman, a lyric poet without rival, and surely one of the most advanced sceptical intellects ever to write a poem." Shelley's reputation fluctuated during the 20th century, but since the 1960s he has achieved increasing critical acclaim for the sweeping momentum of his poetic imagery, his mastery of genres and verse forms, and the complex interplay of sceptical, idealist, and materialist ideas in his work. Among his best- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giant Star
A giant star has a substantially larger radius and luminosity than a main-sequence (or ''dwarf'') star of the same surface temperature. They lie above the main sequence (luminosity class V in the Yerkes spectral classification) on the Hertzsprung–Russell diagram and correspond to luminosity classes II and III. The terms ''giant'' and ''dwarf'' were coined for stars of quite different luminosity despite similar temperature or spectral type (namely K and M) by Ejnar Hertzsprung in 1905 or 1906. Giant stars have radii up to a few hundred times the Sun and luminosities over 10 times that of the Sun. Stars still more luminous than giants are referred to as supergiants and hypergiants. A hot, luminous main-sequence star may also be referred to as a giant, but any main-sequence star is properly called a dwarf, regardless of how large and luminous it is. Formation A star becomes a giant after all the hydrogen available for fusion at its core has been depleted and, as a r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latin
Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area around Rome, Italy. Through the expansion of the Roman Republic, it became the dominant language in the Italian Peninsula and subsequently throughout the Roman Empire. It has greatly influenced many languages, Latin influence in English, including English, having contributed List of Latin words with English derivatives, many words to the English lexicon, particularly after the Christianity in Anglo-Saxon England, Christianization of the Anglo-Saxons and the Norman Conquest. Latin Root (linguistics), roots appear frequently in the technical vocabulary used by fields such as theology, List of Latin and Greek words commonly used in systematic names, the sciences, List of medical roots, suffixes and prefixes, medicine, and List of Latin legal terms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
