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Dipper (Chinese Constellation)
The Dipper mansion (斗宿, pinyin: Dǒu Xiù) is one of the Twenty-eight mansions of the Chinese constellations. It is one of the northern mansions of the Black Tortoise. In Taoism, it is known as the "Six Stars of the Southern Dipper" (南斗六星, Nándǒu liù xīng), in contrast to the Big Dipper north to this mansion. Asterisms Stars * Zeta Sagittarii, ζ Sgr * Tau Sagittarii, τ Sgr * Sigma Sagittarii, σ Sgr * Phi Sagittarii, φ Sgr * Lambda Sagittarii, λ Sgr * Mu Sagittarii, μ Sgr References {{DEFAULTSORT:Dipper (Chinese Constellation) Chinese constellations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telescopium
Telescopium is a minor constellation in the southern Celestial sphere, celestial hemisphere, one of twelve named in the 18th century by French astronomer Nicolas-Louis de Lacaille and one of several depicting scientific instruments. Its name is a Latinized form of the Ancient Greek, Greek word for telescope. Telescopium was later much reduced in size by Francis Baily and Benjamin Apthorp Gould, Benjamin Gould. The brightest star in the constellation is Alpha Telescopii, a blue-white subgiant with an apparent magnitude of 3.5, followed by the orange giant star Zeta Telescopii at magnitude 4.1. Eta Telescopii, Eta and PZ Telescopii are two young star systems with debris disks and brown dwarf companions. Telescopium hosts two unusual stars with very little hydrogen that are likely to be the result of two merged white dwarfs: PV Telescopii, also known as HD 168476, is a hot blue extreme helium star, while RS Telescopii is an R Coronae Borealis variable. RR Telescopii is a cataclysm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lambda Sagittarii
Lambda Sagittarii ( Latinized from λ Sagittarii), formally named Kaus Borealis , is a star in the southern constellation of Sagittarius. The star marks the top of the Archer's bow. Properties With an apparent visual magnitude of +2.81, this is one of the brighter members of the constellation and, according to the Bortle Dark-Sky Scale, it is readily visible to the naked eye. Based upon parallax measurements, it is from the Sun. Being 2.1 degrees south of the ecliptic, Lambda Sgr is sometimes occulted by the Moon and, rarely, by a planet. The last planet to pass in front of it was Venus, on 19 November 1984. The previous occasion was 5 December 1865, when it was occulted by Mercury. Kaus Borealis is a giant star with a stellar classification of K1 IIIb. It has a mass 1.8 times that of the Sun and a physical size of about 11.2 times the Sun's radius. This expanded outer envelope is radiating energy at an effective temperature of 4,768 K, causing it to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phi Sagittarii
Phi Sagittarii, Latinized from φ Sagittarii, is a binary star in the southern constellation of Sagittarius. With an apparent visual magnitude of 3.17, it is the ninth-brightest star in the constellation and is readily visible to the naked eye. Parallax measurements place it at a distance of roughly from the Earth. It is receding with a radial velocity of +21.5 km/s. The stellar classification of this star has been rated at B8.5 III, with the luminosity class of III indicating it is a giant star evolved away from the main sequence after it has exhausted the hydrogen at its core. This energy is being radiated from the star's outer envelope at an effective temperature of , which produces the blue-white hue typical of B-type stars. This star has been catalogued as a spectroscopic binary and a companion was apparently detected through lunar occultation. However, the latter was pointed out as spurious. Interferometric observations taken in 2017 finally revea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sigma Sagittarii
Sigma Sagittarii, Latinized from σ Sagittarii; formally named Nunki , is the second-brightest star in the constellation of Sagittarius. It is a binary star system, viewed as a single star of combined apparent magnitude +2.05, about the same brightness as Saiph in Orion. The distance to this system, determined using parallax measurements from the Hipparcos astrometry satellite, is . It is 3.45 degrees south of the ecliptic, so it can be occulted by the Moon and rarely by planets. The last occultation by a planet took place on November 17, 1981, when it was occulted by Venus. Properties Sigma Sagittarii has a spectrum matching a stellar classification of B2.5 V, which indicates its components are B-type main-sequence stars. X-ray emission has been detected from this star, which has an estimated X-ray luminosity of . The two component stars have masses of 6.5 and 6.3 solar masses () and radii of 4.1 and 3.9 solar radii (), respectively. The effective tempera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tau Sagittarii
Tau Sagittarii (Tau Sgr, τ Sagittarii, τ Sgr) is a star in the southern zodiac constellation of Sagittarius. Description With an apparent visual magnitude of +3.3, this is one of the brighter members of the constellation. The distance of this star from Earth is roughly , based upon parallax measurements. This is a spectral type K1 giant star with about . The stellar envelope is slightly cooler than the Sun with an effective temperature of 4,459 K, giving the star a light orange color. The interferometry-measured angular diameter of this star, after correcting for limb darkening, is , which, at its estimated distance, equates to a physical radius of about 16 times the radius of the Sun. τ Sagittarii is a suspected double star although no companion has been confirmed yet. A lower metal content (Fe to H ratio is 54% lower than the sun's) and a high peculiar velocity (64 km/s, four times the local average) relative to the Sun suggest the star is a vis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zeta Sagittarii
Zeta Sagittarii (ζ Sagittarii, abbreviated Zeta Sgr, ζ Sgr) is a triple star system and the third-brightest star in the constellation of Sagittarius after Kaus Australis and Nunki. Based upon parallax measurements, it is about from the Sun. The three components are designated Zeta Sagittarii Aa (officially named Ascella , the traditional name for the entire system), Ab and B. The Washington Double Star Catalog cites a component separated 72.3" from the system, but it is a background star unrelated to the pair. Nomenclature ''ζ Sagittarii'' ( Latinised to ''Zeta Sagittarii'') is the system's Bayer designation. The designations of the three components as ''ζ Sagittarii Aa,'' ''Ab'' and ''B'' derive from the convention used by the Washington Multiplicity Catalog (WMC) for multiple star systems, and adopted by the International Astronomical Union (IAU). It bore the traditional name ''Ascella'', from a Late Latin word meaning ''armpit''. In the catalo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HD 172910
HD 172910 is a class B2.5V (blue main-sequence) star in the constellation Sagittarius. Its apparent magnitude is 4.87 and it is approximately 467 light years away based on parallax. It has one companion, B, with magnitude 12.6 and separation 10.0". In Chinese astronomy, HD 172910 is called 農丈人 (Pinyin: Nóngzhàngrén, ), because this star is marking itself and stand alone in ''Peasant'' asterism, Dipper mansion (see : Chinese constellation Traditional Chinese astronomy has a system of dividing the celestial sphere into asterisms or constellations, known as "officials" ( Chinese ''xīng guān''). The Chinese asterisms are generally smaller than the constellations of Hellenisti ...). References Sagittarius (constellation) B-type main-sequence stars Double stars CD-35 12876 091918 7029 172910 {{multi-star-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panhu
Panhu (hanzi: 盤瓠; pinyin ''Pánhù''; IPA: /pʰan³⁵-xu⁵¹/) is an important figure in Han and Yao mythologies. The Panhu mythological complex includes myths in Chinese and also other languages. This myth has a long history of being transmitted by Han Chinese and several of the other ethnic groups of the fifty-six officially recognized by the current administration of China, both orally and in literature. (Yang 2005:4) The Panhu myth is an important origin myth for various ethnic groups. Basic myth The basic Panhu myth is about a dragon-dog who transformed into a man and married a princess. In the myth, there was an old woman in an ancient Chinese king's palace who had ear pain for many years. A royal physician plucked out a small, golden worm from her ear, and placed it inside of a gourd covered with a plate. This is the origin of Panhu's name, which literally means "plate gourd". The worm then turned into a dog, Panhu, who in some versions had five colored fur. The king ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophiuchus
Ophiuchus () is a large constellation straddling the celestial equator. Its name comes from the Ancient Greek (), meaning "serpent-bearer", and it is commonly represented as a man grasping a snake. The serpent is represented by the constellation Serpens. Ophiuchus was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and it remains one of the IAU designated constellations, 88 modern constellations. An old alternative name for the constellation was Serpentarius. Location Ophiuchus lies between Aquila (constellation), Aquila, Serpens, Scorpius, Sagittarius (constellation), Sagittarius, and Hercules (constellation), Hercules, northwest of the center of the Milky Way. The southern part lies between Scorpius to the west and Sagittarius (constellation), Sagittarius to the east. In the northern hemisphere, it is best visible in summer. It is opposite of Orion (constellation), Orion. Ophiuchus is depicted as a man grasping a Serpens, serpent; the int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corona Australis
Corona Australis is a constellation in the Southern Celestial Hemisphere. Its Latin name means "southern crown", and it is the southern counterpart of Corona Borealis, the northern crown. It is one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and it remains one of the 88 modern constellations. The Ancient Greeks saw Corona Australis as a wreath rather than a crown and associated it with Sagittarius or Centaurus. Other cultures have likened the pattern to a turtle, ostrich nest, a tent, or even a hut belonging to a rock hyrax. Although fainter than its northern counterpart, the oval- or horseshoe-shaped pattern of its brighter stars renders it distinctive. Alpha and Beta Coronae Australis are the two brightest stars with an apparent magnitude of around 4.1. Epsilon Coronae Australis is the brightest example of a W Ursae Majoris variable in the southern sky. Lying alongside the Milky Way, Corona Australis contains one of the closest star-forming region ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scutum (constellation)
Scutum is a small constellation. Its name is Latin for shield, and it was originally named Scutum Sobiescianum by Johannes Hevelius in 1684. Located just south of the celestial equator, its four brightest stars form a narrow diamond shape. It is one of the 88 IAU designated constellations defined in 1922. History Scutum was named in 1684 by Polish astronomer Johannes Hevelius (Jan Heweliusz), who originally named it ''Scutum Sobiescianum'' (Shield of Sobieski) to commemorate the victory of the Christian forces led by Polish King John III Sobieski (Jan III Sobieski) in the Battle of Vienna in 1683. Later, the name was shortened to Scutum. Five bright stars of Scutum ( α Sct, β Sct, δ Sct, ε Sct and η Sct) were previously known as 1, 6, 2, 3, and 9 Aquilae respectively. The constellation of Scutum was adopted by the International Astronomical Union in 1922 as one of the 88 constellations covering the entire sky, with the official abbreviation of "Sct". The constellatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
