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λ Herculis
Lambda Herculis (λ Herculis. abbreviated Lambda Her, λ Her), formally named Maasym , is a star in the constellation of Hercules. From parallax measurements taken during the Gaia mission, it is approximately 393 light-years from the Sun. Nomenclature ''λ Herculis'' ( Latinised to ''Lambda Herculis'') is the star's Bayer designation. It bore the traditional name ''Maasym'', from the Arabic مِعْصَم ''miʽṣam'' "wrist". In 2016, the International Astronomical Union organized a Working Group on Star Names (WGSN) to catalogue and standardize proper names for stars. The WGSN approved the name ''Maasym'' for this star on 12 September 2016 and it is now so included in the List of IAU-approved Star Names. In Chinese, (), meaning '' Left Wall of Heavenly Market Enclosure'', refers to an asterism which represents eleven old states in China and which is marking the left borderline of the enclosure, consisting of Lambda Herculis, Delta Herculis, Mu Herculis, Omicron Her ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hercules (constellation)
Hercules is a constellation named after Hercules, the Roman mythology hero adapted from the Greek mythology, Greek hero Heracles. Hercules was one of the 48 constellations listed by the second-century astronomer Ptolemy, and it remains one of the IAU designated constellations, 88 modern constellations today. It is the fifth-largest of the modern constellations and is the largest of List of brightest stars, the 50 which have no stars brighter than apparent Magnitude (astronomy), magnitude +2.5. Characteristics Hercules is bordered by Draco (constellation), Draco to the north; Boötes, Corona Borealis, and Serpens, Serpens Caput to the west; Ophiuchus to the south; Aquila (constellation), Aquila to the southwest; and Sagitta, Vulpecula, and Lyra to the east. Covering 1225.1 square degrees and 2.970% of the night sky, it ranks fifth among the 88 constellations in size. The three-letter abbreviation for the constellation, as adopted by the International Astronomical Union in 192 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mu Herculis
Mu Herculis (μ Herculis) is a nearby quadruple star system about 27.1 light years from Earth in the constellation Hercules (constellation), Hercules. Its main star, Mu Herculis A is fairly similar to the Sun although more highly stellar evolution, evolved with a stellar classification of G5 IV. Since 1943, the stellar spectrum, spectrum of this star has served as one of the stable anchor points by which other stars are classified. Its mass is about 1.1 times that of the Sun, and it is beginning to expand to become a giant. Etymology In the catalogue of stars in the ''Calendarium of Al Achsasi Al Mouakket'', this star was designated ''Marfak Al Jathih Al Aisr'', which was translated into Latin as ''Cubitum Sinistrum Ingeniculi'', meaning ''the left elbow of kneeling man''. In Chinese astronomy, Chinese, (), the ''Heavenly Market enclosure, Left Wall of Heavenly Market Enclosure'', refers to an asterism which represents eleven old states in China, mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Girl (Chinese Constellation)
The Girl mansion (女宿, pinyin: Nǚ Xiù) is one of the Twenty-eight mansions of the 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 ...s. It is one of the northern mansions of the Black Tortoise. Asterisms Notes {{Chinese constellation Chinese constellations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
27 Capricorni
This is the list of notable stars in the constellation Capricornus, sorted by decreasing brightness. See also *List of stars by constellation References * * * * * * * {{Stars of Capricornus Capricornus, *List Lists of stars by constellation, Capricornus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
26 Capricorni
6 (six) is the natural number following 5 and preceding 7. It is a composite number and the smallest perfect number. In mathematics A six-sided polygon is a hexagon, one of the three regular polygons capable of tiling the plane. A hexagon also has 6 edges as well as 6 internal and external angles. 6 is the second smallest composite number. It is also the first number that is the sum of its proper divisors, making it the smallest perfect number. It is also the only perfect number that doesn't have a digital root of 1. 6 is the first unitary perfect number, since it is the sum of its positive proper unitary divisors, without including itself. Only five such numbers are known to exist. 6 is the largest of the four all-Harshad numbers. 6 is the 2nd superior highly composite number, the 2nd colossally abundant number, the 3rd triangular number, the 4th highly composite number, a pronic number, a congruent number, a harmonic divisor number, and a semiprime. 6 is also the firs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zhao (state)
Zhao () was one of the seven major State (Ancient China), states during the Warring States period of ancient China. It emerged from the Partition of Jin, tripartite division of Jin, along with Han (Warring States), Han and Wei (state), Wei, in the 5th century BC. Zhao gained considerable strength from the military reforms initiated during the reign of King Wuling of Zhao, King Wuling, but suffered a crushing defeat at the hands of Qin (state), Qin at the Battle of Changping. Its territory included areas in the modern provinces of Inner Mongolia, Hebei, Shanxi and Shaanxi. It bordered the states of Qin, Wei, and Yan (state), Yan, as well as various nomadic peoples including the Donghu people, Hu and Xiongnu. Its capital was Handan, in modern Hebei province. Zhao was home to the Chinese Legalism, administrative philosopher Shen Dao, Confucian Xun Kuang, and Gongsun Long, who is affiliated to the school of names. Origins and ascendancy The Zhao (surname), Zhao clan within Jin ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinese Star Names
Chinese star names ( Chinese: , ''xīng míng'') are named according to ancient Chinese astronomy and astrology. The sky is divided into star mansions (, ''xīng xiù'', also translated as "lodges") and asterisms (, ''xīng guān''). The ecliptic is divided into four sectors that are associated with the Four Symbols, guardians in Chinese mythology, and further into 28 mansions. Stars around the north celestial pole are grouped into three enclosures (, ''yuán''). The system of 283 asterisms under the Three Enclosures and Twenty-Eight Mansions was established by Chen Zhuo of the Three Kingdoms period, who synthesized ancient constellations and the asterisms created by early astronomers Shi Shen, Gan De and Wuxian. Since the Han and Jin dynasties, stars have been given reference numbers within their asterisms in a system similar to the Bayer or Flamsteed designations, so that individual stars can be identified. For example, Deneb (α Cyg) is referred to as (''Tiān Jīn S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eta Ophiuchi
Eta Ophiuchi (η Ophiuchi, abbreviated Eta Oph, η Oph) is a binary star in the constellation of Ophiuchus. With a combined apparent magnitude of +2.43, it is the second-brightest of the constellation and one of the brightest stars in the night sky. Based on parallax measurements taken during the Hipparcos mission, it is approximately 88 light-years away. Eta Ophiuchi is part of a multiple star system designated WDS J17104-1544. It itself is designated WDS J17104-1544AB and its two components WDS J17104-1544A (also called Sabik , the traditional name for the system) and WDS J17104-1544B. The 'C' component is UCAC4 372-080717 and 'D' is UCAC2 26022336. Nomenclature ''η Ophiuchi'' ( Latinised to ''Eta Ophiuchi'') is the system's Bayer designation. WDS J17104-1544AB is its designation in the Washington Double Star Catalog. The designations of the two components as WDS J17104-1544 A and B derive from the convention used by the Washington Multiplicity Catalog (WMC) for multi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xi Serpentis
Xi Serpentis, Latinized from ξ Serpentis, is a triple star system in the Serpens Cauda (tail) section of the equatorial constellation Serpens. Based upon an annual parallax shift of 30.98 mas as seen from Earth, it is located 105.3 light years from the Sun. The star system is visible to the naked eye with a base apparent visual magnitude of +3.54. It is moving closer to the Sun and will make perihelion passage at a distance of in around 690,000 years. The inner pair form a single-lined spectroscopic binary with an orbital period of 2.29 days following a circular orbit. The primary, component Aa, has a visual magnitude of 3.54. It is a white-hued G-type giant star with a stellar classification of . This indicates it is a chemically peculiar Ap star with an abnormal abundance of strontium. The primary has around double the mass of the Sun, while its close companion, component Ab, has only 18% of the Sun's mass. The third member, component B, is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nu Ophiuchi
Nu Ophiuchi (ν Oph, ν Ophiuchi) is a star in the equatorial constellation of Ophiuchus. The apparent visual magnitude is +3.3, making it one of the brighter members of this constellation. Based upon parallax measurements made by the Hipparcos satellite, this star is located at a distance of about . Properties Nu Ophiuchi has about three times the mass of the Sun and is roughly 450 million years old. The spectrum of the star matches a stellar classification of K0 IIIa, indicating it is a giant star that has exhausted the supply of hydrogen at its core and evolved away from the main sequence of stars. Unusually, it displays an anomalously low abundance of cyanogen for a star of its type. The star's outer envelope has expanded to around 14 times the Sun's radius and now radiates with a luminosity 108 times that of the Sun. This energy is emitted from its outer envelope at an effective temperature of 5,000 K, giving it the cool, orange hue of a K-type star. Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eta Serpentis
Eta Serpentis, Latinized from η Serpentis, is a star in the constellation Serpens. In particular, it lies in Serpens Cauda, the snake's tail. The star has an apparent visual magnitude of 3.260, making it visible to the naked eye. Parallax measurements give a distance estimate of from the Earth. This star is larger than the Sun, with 1.6 times the mass and almost six times the radius. The spectrum matches a stellar classification of K0 III-IV, with the luminosity class of III-IV corresponding to an evolved star that lies between the subgiant and giant stages. The expanded outer envelope star is radiating about 18 times the luminosity of the Sun at an effective temperature of . At this temperature, it has an orange hue typical of a K-type star. Eta Serpentis displays solar-like oscillations with a period of 0.09 of a day. Eta Serpentis was previously classified as a carbon star, which would have made it the brightest carbon star in the sky, although this classific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theta1 Serpentis
Theta Serpentis (θ Serpentis, abbreviated Theta Ser, θ Ser) is a binary star in the constellation of Serpens. It is visible to the naked eye with a combined apparent magnitude of 4.0. Based on parallax measurements, it lies about 130 light-years distant. The two components are designated Theta Serpentis A, officially named Alya , the traditional name for the entire system) also called Theta1 Serpentis, and B, also called Theta2 Serpentis. Nomenclature ''θ Serpentis'' ( Latinised to ''Theta Serpentis'') is the system's Bayer designation; ''θ1'' and ''θ2 Serpentis'' those of the brightest two components. The designations of the two constituents as ''Theta Serpentis AB'' and ''C'', and those of ''AB's'' components - ''Theta Serpentis A'' 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). The system bore the traditional name ''Alya'', or ''Alga'', f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
