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Hydra (Chinese Astronomy)
The modern constellation Hydra (constellation), Hydra lies across two of the quadrants, symbolized by the Azure Dragon, Azure Dragon of the East (東方青龍, ''Dōng Fāng Qīng Lóng'') and the Vermilion Bird, Vermilion Bird of the South (南方朱雀, ''Nán Fāng Zhū Què''), that divide the sky in traditional Traditional Chinese star names#Categories of Chinese traditional uranography, Chinese uranography. The name of the western constellation in modern Chinese is 長蛇座 (''cháng shé zuò''), which means "the long snake constellation". Stars The map of Chinese constellation in constellation Hydra area consists of: See also *Chinese astronomy *Traditional Chinese star names *Chinese constellations References {{reflist External linksHydra – Chinese associations香港太空館https://web.archive.org/web/20120813070951/http://www.lcsd.gov.hk/CE/Museum/Space/Research/c_index.htm 研究資源] *中國星區、星官及星名英譯表*台灣自然科學博物館http://aee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydra (constellation)
Hydra is the largest of the 88 modern constellations, measuring 1303 square degrees, and also the longest at over 100 degrees. Its southern end borders Libra (constellation), Libra and Centaurus (constellation), Centaurus and its northern end borders Cancer (constellation), Cancer. It was included among the 48 constellations listed by the 2nd century astronomer Ptolemy. Commonly represented as a water snake (other), water snake, it straddles the celestial equator. History and mythology Western mythology The Greek constellation of Hydra is an adaptation of a Babylonian astronomy, Babylonian constellation: the MUL.APIN includes a "serpent" constellation (MUL.DINGIR.MUŠ) that loosely corresponds to Hydra. It is one of two Babylonian "serpent" constellations (the other being the origin of the Greek Serpens), a mythological hybrid of serpent, lion and bird. The shape of Hydra resembles a twisting snake, and features as such in some Greek myths. One myth associates it w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ghost (Chinese Constellation)
The Ghost mansion () is one of the Twenty-eight mansions of the Chinese constellations. It is one of the southern mansions of the Vermilion Bird The Vermilion Bird ( zh, c=朱雀, p=Zhūquè) is one of the Four Symbols of the Chinese constellations. According to Wuxing (Chinese philosophy), Wu Xing, the Taoism, Taoist five elemental system, it represents the Fire (Wu Xing), Fire element, .... Asterisms {{DEFAULTSORT:Ghost (Chinese Constellation) Chinese constellations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Three Stars (Chinese Constellation)
The Three Stars mansion () is one of the twenty-eight mansions The Twenty-Eight Mansions (), also called or , are part of the Chinese constellations system. They can be considered as the equivalent to the Zodiac, zodiacal constellations in Western astronomy, though the Twenty-eight Mansions reflect the move ... of the Chinese constellations. It is one of the western mansions of the White Tiger. This collection of seven bright stars is visible during winter in the Northern Hemisphere (summer in the Southern). Asterisms References {{Chinese constellation Chinese constellations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Delta Hydrae
Delta Hydrae, Latinized from δ Hydrae, is a triple star in the equatorial constellation of Hydra. It is visible to the naked eye with an apparent visual magnitude of 4.146. Based upon an annual parallax shift of 20.34 mas, it is located about 160 light years distant. Characteristics This is a hierarchical triple system. δ Hydrae Aa and δ Hydrae Ab form a close binary system with an orbital separation of 0.9 astronomical units, taking about 200 days to complete an orbit. The outer companion, δ Hydrae B, has an angular separation of from the Aa–Ab pair, along a position angle of , as of 2003. At the system's distance, this separation translates in a physical projected separation of 147 AU. The brighter component, δ Hydrae Aa, is an A-type main sequence star with a stellar classification of A1 Vnn. It is spinning rapidly with a projected rotational velocity of 285 km/s. This is giving the star an oblate shape with an equatorial bul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Willow (Chinese Constellation)
The Willow mansion (柳宿, pinyin: Liǔ Xiù) is one of the Twenty-eight mansions of the Chinese constellations. It is one of the southern mansions of the Vermilion Bird The Vermilion Bird ( zh, c=朱雀, p=Zhūquè) is one of the Four Symbols of the Chinese constellations. According to Wuxing (Chinese philosophy), Wu Xing, the Taoism, Taoist five elemental system, it represents the Fire (Wu Xing), Fire element, .... Asterisms References {{DEFAULTSORT:Willow (Chinese Constellation) Chinese constellations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
9 Hydrae
9 Hydrae is a single star in the equatorial constellation of Hydra, located 205 light years away from the Sun. It is visible to the naked eye as a faint, yellow-orange hued star with an apparent visual magnitude of 4.87. This body is moving closer to the Sun with a heliocentric radial velocity of −2 km/s. This is an aging giant star with a stellar classification of , where the suffix notation indicates an overabundance of cyanogen in the spectrum. It is a red clump giant, which indicates it is on the horizontal branch and is generating energy through helium fusion at its core. The star has 1.7 times the mass of the Sun but, as a consequence of evolving away from the main sequence, its envelope has swollen to 11 times the Sun's radius. It is radiating 54 times the luminosity of the Sun from its enlarged photosphere at an effective temperature The effective temperature of a body such as a star or planet is the temperature of a black body that would emi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
12 Hydrae
12 Hydrae is a probable astrometric binary star system located 202 light years away from the Sun in the equatorial constellation of Hydra. It has the Bayer designation D Hydrae; ''12 Hydrae'' is the Flamsteed designation. This system is visible to the naked eye as a faint, yellow-hued star with a combined apparent visual magnitude of 4.32. It is moving closer to the Earth with a heliocentric radial velocity of −8.5 km/s. This was found to be a double star by R. A. Rossiter in 1953, with the magnitude 13.7 companion having an angular separation of along a position angle of 266°, as of 2016. The brighter, magnitude 4.32 component A is a spectroscopic binary. As of 2009, the orbital solution for this pair is of low quality, giving a period of roughly and an eccentricity of around 0.4. The primary component is an aging giant star with a stellar classification of , where the suffix notation indicates an underabundance of the cyanogen molecule. It is 910& ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
6 Hydrae
6 Hydrae is a single star in the equatorial constellation of Hydra, located 373 light-years away from the Sun. It has the Bayer designation a Hydrae; ''6 Hydrae'' is the Flamsteed designation. This object is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 4.98. It is moving closer to the Earth with a heliocentric radial velocity of −8 km/s. Eggen (1995) listed it as a proper motion candidate for membership in the IC 2391 supercluster. This is an aging giant star with a stellar classification of K3 III, which indicates it has exhausted the hydrogen at its core and evolved away from the main sequence. As a consequence, it has expanded to 33 times the radius of the Sun. The star is radiating 267 times the luminosity of the Sun from its swollen photosphere at an effective temperature The effective temperature of a body such as a star or planet is the temperature of a black body that would emit the same tota ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
17 Hydrae
This is the list of notable stars in the constellation A constellation is an area on the celestial sphere in which a group of visible stars forms Asterism (astronomy), a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object. The first constellati ... Hydra, sorted by decreasing brightness. See also * List of stars by constellation References Bibliography * * * * * {{Stars of Hydra *List Hydra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HD 71155
HD may refer to: Business * H-D or Harley-Davidson, a motorcycle manufacturer * The Home Depot, NYSE stock symbol: HD Chemistry * Hydrogen deuteride, a diatomic compound of hydrogen and deuterium * Mustard gas Codes * Air Do, formerly Hokkaido International Airlines, IATA designator * HD postcode area, covering Huddersfield, Brighouse and Holmfirth in England, UK * Heidelberg's vehicle registration plate code * Hunedoara County (Romania)'s ISO 3166 code Medicine * Hansen's disease or leprosy * Hirschsprung's disease, a disorder of the abdomen * Huntington's disease, a genetic disorder affecting the central nervous system ** HD (gene) or huntingtin, the IT15 gene, which codes for the huntingtin protein People * H.D. or Hilda Doolittle (1886–1961), American poet and novelist Other uses * ''Helsingborgs Dagblad'', a Swedish newspaper * Henry Draper Catalogue, an astronomical catalogue often used to designate stars * Department of Highways (other) * Supreme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1 Hydrae
This is the list of notable stars in the constellation A constellation is an area on the celestial sphere in which a group of visible stars forms Asterism (astronomy), a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object. The first constellati ... Hydra, sorted by decreasing brightness. See also * List of stars by constellation References Bibliography * * * * * {{Stars of Hydra *List Hydra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
