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γ Crucis
Gacrux is the third-brightest star in the southern constellation of Crux, the Southern Cross. It has the Bayer designation Gamma Crucis, which is Latinised from γ Crucis and abbreviated Gamma Cru or γ Cru. With an apparent visual magnitude of +1.63, it is the 26th brightest star in the night sky. A line from the two "Pointers", Alpha Centauri through Beta Centauri, leads to within 1° north of this star. Using parallax measurements made during the Hipparcos mission, it is distant. It is the nearest M-type red giant star. Nomenclature ''γ Crucis'' (Latinised to ''Gamma Crucis'') is the star's Bayer designation. Gacrux is currently at roughly 60° south declination. It was known and visible to the ancient Greeks and Romans as it was visible north of 40° latitude because of the precession of equinoxes. Oddly, it lacked a traditional name. The astronomer Ptolemy counted it as part of the constellation of Centaurus. The name ''Gacrux'' was coined by astronomer El ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Greece
Ancient Greece () was a northeastern Mediterranean civilization, existing from the Greek Dark Ages of the 12th–9th centuries BC to the end of classical antiquity (), that comprised a loose collection of culturally and linguistically related city-states and communities. Prior to the Roman period, most of these regions were officially unified only once under the Kingdom of Macedon from 338 to 323 BC. In Western history, the era of classical antiquity was immediately followed by the Early Middle Ages and the Byzantine period. Three centuries after the decline of Mycenaean Greece during the Bronze Age collapse, Greek urban poleis began to form in the 8th century BC, ushering in the Archaic period and the colonization of the Mediterranean Basin. This was followed by the age of Classical Greece, from the Greco-Persian Wars to the death of Alexander the Great in 323 BC, and which included the Golden Age of Athens and the Peloponnesian War. The u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Delta Crucis
Delta Crucis or δ Crucis, also identified as Imai (), is a star in the southern constellation of Crux, and is the faintest of the four bright stars that form the prominent Asterism (astronomy), asterism known as the Southern Cross. This star has an apparent magnitude of 2.8, and its proper name was adopted by the International Astronomical Union on 10 August 2018. Imai is a massive, hot and rapidly rotating star that is in the process of Stellar evolution, evolving into a giant, and is located at a distance of about from the Sun. Nomenclature ''δ Crucis'' (Latinisation of names, Latinised to ''Delta Crucis'') is the star's Bayer designation. The International Astronomical Union IAU Working Group on Star Names, Working Group on Star Names (WGSN) approved the name ''Imai'' for this star on 10 August 2018 and it is in the list of IAU-approved star names. ''Imai'' is the name selected for the star designated Delta Crucis by the Mursi people of modern-day Ethiopia. The st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Australia
Central Australia, also sometimes referred to as the Red Centre, is an inexactly defined region associated with the geographic centre of Australia. In its narrowest sense it describes a region that is limited to the town of Alice Springs and its immediate surrounds including the MacDonnell Ranges. Commonly, it refers to an area up to from Alice Springs, in every direction. In its broadest use it can include almost any region in inland Australia that has remained relatively undeveloped, and in this sense is synonymous with the term Outback. In a modern, more formal sense it can refer to the administrative region used by the Northern Territory government, as of 2022. Centralia is another term associated with the area, most commonly used by locals. Administrative region of the NT Economic region There are six regions in the Northern Territory for the purposes of economic planning, as defined by the Northern Territory Government: * Central Australia * Darwin, Palmersto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermannsburg, Northern Territory
Hermannsburg, also known as Ntaria, is an Aboriginal Australians, Aboriginal community in Ljirapinta Ward of the MacDonnell Shire in the Northern Territory of Australia, ; west southwest of Alice Springs, Northern Territory, Alice Springs, on the Finke River, in the traditional lands of the Arrernte people, Western Arrarnta people. Established as a Lutheranism, Lutheran Aboriginal mission in 1877, linguist and anthropologist Carl Strehlow documented the local Western Arrernte language during his time there. The mission station, mission was known as Finke River Mission or Hermannsburg Mission, but the former term was later used to included a few more settlements, and from 2014 has applied to all Lutheran missions in Central Australia. The land was handed over to traditional ownership in 1982 under the ''Aboriginal Land Rights Act 1976'', and the area is now heritage-listed. Geography Hermannsburg lies on the Finke River within the rolling hills of the MacDonnell Ranges in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luritja
The Luritja or Loritja people, also known as Kukatja or Kukatja-Luritja, are an Aboriginal Australian people of the Northern Territory. Their traditional lands are immediately west of the Derwent River, that forms a frontier with the Arrernte people, with their lands covering some . Their language is the Luritja dialect, a Western Desert language. Name The name Kukatja or Kukatj is one shared by four other distinct tribes throughout Australia. The root of the word seems to suggest pride in being "meat eaters" rather than people who scrounge for vegetables for sustenance. The Northern Territory Kukatja were often referred to in the ethnographical literature by Arrernte people, Arerrnte exonyms for them, either ''Loritja'' or ''Aluritja'', which bore pejorative connotations. According to Kenny (2013), "The people living to the immediate west of the Western Aranda called themselves Kukatja or Loritja at the turn of the twentieth century. Today they call themselves Luritja or Kuk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aranda People
The Arrernte () people, sometimes referred to as the Aranda, Arunta or Arrarnta, are a group of Indigenous Australians, Aboriginal Australian peoples who live in the Arrernte (area), Arrernte lands, at ''Mparntwe'' (Alice Springs) and surrounding areas of the Central Australia region of the Northern Territory. Many still speak one of the Upper Arrernte language, various Arrernte dialects. Some Arrernte live in other areas far from their homeland, including the Australian capital cities, major Australian cities and overseas. Arrernte spirituality focuses on the landscape and The Dreaming which the Arrernte name for is Altyerre. Altjira is the creator being of the Inapertwa that became all living creatures. Tjurunga are objects of religious significance. The Arrernte Council is the representative and administrative body for the Arrernte Lands and is part of the Central Land Council. Tourism is important to the economy of Alice Springs and surrounding communities. Arrernte lang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinese Language
Chinese ( or ) is a group of languages spoken natively by the ethnic Han Chinese majority and List of ethnic groups in China, many minority ethnic groups in China, as well as by various communities of the Chinese diaspora. Approximately 1.39 billion people, or 17% of the global population, speak a variety of Chinese as their first language. Chinese languages form the Sinitic languages, Sinitic branch of the Sino-Tibetan language family. The spoken varieties of Chinese are usually considered by native speakers to be dialects of a single language. However, their lack of mutual intelligibility means they are sometimes considered to be separate languages in a Language family, family. Investigation of the historical relationships among the varieties of Chinese is ongoing. Currently, most classifications posit 7 to 13 main regional groups based on phonetic developments from Middle Chinese, of which the most spoken by far is Mandarin Chinese, Mandarin with 66%, or around 800&nb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IAU Working Group On Star Names
The International Astronomical Union (IAU) established a Working Group on Star Names (WGSN) in May 2016 to catalog and standardize proper names for stars for the international astronomical community. It operates under Division C – Education, Outreach and Heritage. The IAU states that it is keen to make a distinction between the terms ''name'' and ''designation''. To the IAU, ''name'' refers to the (usually colloquial) term used for a star in everyday conversation, while ''designation'' is solely alphanumerical, and used almost exclusively in official catalogues and for professional astronomy. (The WGSN notes that transliterated Bayer designations (e.g., Tau Ceti) are considered a special historical case and are treated as designations.) Terms of reference The terms of reference for the WGSN for the period 2016–2018 were approved by the IAU Executive Committee at its meeting on 6 May 2016. In summary, these are to: * establish IAU guidelines for the proposal and a ... [...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] |
Centaurus
Centaurus () is a bright constellation in the southern sky. One of the 88 modern constellations by area, largest constellations, Centaurus was included among the 48 constellations listed by the 2nd-century astronomer Ptolemy, and it remains one of the IAU designated constellations, 88 modern constellations. In Greek mythology, Centaurus represents a centaur; a creature that is half human, half horse (another constellation named after a centaur is one from the zodiac: Sagittarius (constellation), Sagittarius). Notable stars include Alpha Centauri, the nearest star system to the Solar System, its neighbour in the sky Beta Centauri, and V766 Centauri, HR 5171, one of the largest stars yet discovered. The constellation also contains Omega Centauri, the brightest globular cluster as visible from Earth and the largest identified in the Milky Way, possibly a remnant of a dwarf galaxy. Notable features Stars Centaurus contains several very bright stars. Its alpha and beta stars are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ptolemy
Claudius Ptolemy (; , ; ; – 160s/170s AD) was a Greco-Roman mathematician, astronomer, astrologer, geographer, and music theorist who wrote about a dozen scientific treatises, three of which were important to later Byzantine science, Byzantine, Islamic science, Islamic, and Science in the Renaissance, Western European science. The first was his astronomical treatise now known as the ''Almagest'', originally entitled ' (, ', ). The second is the ''Geography (Ptolemy), Geography'', which is a thorough discussion on maps and the geographic knowledge of the Greco-Roman world. The third is the astrological treatise in which he attempted to adapt horoscopic astrology to the Aristotelian physics, Aristotelian natural philosophy of his day. This is sometimes known as the ' (, 'On the Effects') but more commonly known as the ' (from the Koine Greek meaning 'four books'; ). The Catholic Church promoted his work, which included the only mathematically sound geocentric model of the Sola ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
