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α Ceti
Alpha Ceti (α Ceti, abbreviated Alpha Cet, α Cet), officially named Menkar , is the second-brightest star in the constellation of Cetus. It is a cool luminous red giant estimated to be about 250 light years away based on stellar parallax, parallax. Nomenclature ''Alpha Ceti'' is the star's Bayer designation. It has the traditional name Menkar, deriving from the Arabic word منخر ''manħar'' "nostril" (of Cetus). In 2016, the International Astronomical Union organized a IAU Working Group on Star Names, Working Group on Star Names (WGSN) to catalog and standardize proper names for stars. The WGSN's first bulletin of July 2016 included a table of the first two batches of names approved by the WGSN; which included ''Menkar'' for this star. This star, along with Gamma Ceti, γ Cet (Kaffaljidhma), Delta Ceti, δ Cet, Lambda Ceti, λ Cet (also Menkar), Mu Ceti, μ Cet, Xi1 Ceti, ξ1 Cet and Xi2 Ceti, ξ2 Cet were ''Al Kaff al Jidhmah'', "the Part of a Hand". In Chines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cetus
Cetus () is a constellation, sometimes called 'the whale' in English. The Cetus (mythology), Cetus was a sea monster in Greek mythology which both Perseus and Heracles needed to slay. Cetus is in the region of the sky that contains other water-related constellations: Aquarius (constellation), Aquarius, Pisces (constellation), Pisces and Eridanus (constellation), Eridanus. Features Ecliptic Cetus is not among the 12 true zodiac constellations in the Epoch (astronomy), J2000 epoch, nor classical 12-part zodiac. The ecliptic passes less than 0.25° from one of its corners. Thus the Moon and planets will enter Cetus (occulting any stars as a foreground object) in 50% of their successive orbits briefly, and the southern part of the Sun appears in Cetus for about 14 hours each year on March 27 to 28. Many asteroids in belts have longer phases occulting the north-western part of Cetus, those with a slightly greater inclination to the ecliptic than the Moon and planets. Astronomy on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lambda Ceti
Lambda Ceti, Latinized from λ Ceti, is a B-type star of fifth-magnitude located in the constellation Cetus. Historically, the star bore the traditional name Menkar, although today that name is more commonly associated with α Ceti. This star, along with α Cet (Menkar), γ Cet (Kaffaljidhma), δ Cet, μ Cet, ξ1 Cet and ξ2 Cet were ''Al Kaff al Jidhmah'', "the Part of a Hand". In Chinese, (), meaning '' Circular Celestial Granary'', refers to an asterism consisting of λ Ceti, α Ceti, κ1 Ceti, μ Ceti, ξ1 Ceti, ξ2 Ceti, ν Ceti, γ Ceti, δ Ceti, 75 Ceti, 70 Ceti, 63 Ceti and 66 Ceti. Consequently, the Chinese name for λ Ceti itself is (, .) [...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] |
66 Ceti ...
This is the list of notable stars in the constellation Cetus, sorted by decreasing brightness. See also * List of stars by constellation References * * * * * * * {{Stars of Cetus *List Cetus Cetus () is a constellation, sometimes called 'the whale' in English. The Cetus (mythology), Cetus was a sea monster in Greek mythology which both Perseus and Heracles needed to slay. Cetus is in the region of the sky that contains other water- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
63 Ceti
63 Ceti is a star in the constellation of Cetus, located just over a degree south of the celestial equator. With an apparent magnitude of about 5.9, the star is barely visible to the naked eye (see Bortle scale) as a dim, orange-hued point of light. Parallax estimates put it at a distance of about 390 light years (129 parsecs) away from the Earth, and it is drifting further away with a radial velocity of 28 km/s. 63 Ceti has a spectral type of K0III, implying an aging K-type giant star. These types of stars are generally reddish-colored stars with spectral types from K to M, with radii that are 10 to 100 times larger than the Sun. 63 Ceti fits this description, with a radius about 11 times larger than the Sun, a mass of about 1.85 times the Sun, and an effective temperature of 4940 K. 63 Ceti is a red clump giant, indicating it is currently at the horizontal branch, a stage in stellar evolution, and is generating energy through core helium fusion. It is close to a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
70 Ceti ...
This is the list of notable stars in the constellation Cetus, sorted by decreasing brightness. See also * List of stars by constellation References * * * * * * * {{Stars of Cetus *List Cetus Cetus () is a constellation, sometimes called 'the whale' in English. The Cetus (mythology), Cetus was a sea monster in Greek mythology which both Perseus and Heracles needed to slay. Cetus is in the region of the sky that contains other water- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
75 Ceti
75 Ceti is a star in the equatorial constellation of Cetus with at least two planets. It is visible to the naked eye as a dim, orange-hued star with an apparent visual magnitude of +5.36. The star is located distant from the Sun, based on parallax, but is drifting closer with a radial velocity of −6 km/s. In Chinese, (), meaning '' Circular Celestial Granary'', refers to an asterism consisting of α Ceti, κ1 Ceti, λ Ceti, μ Ceti, ξ1 Ceti, ξ2 Ceti, ν Ceti, γ Ceti, δ Ceti, 75 Ceti, 70 Ceti, 63 Ceti and 66 Ceti. Consequently, 75 Ceti itself is known as the Tenth Star of Circular Celestial Granary. This is an aging giant star with a stellar classification of K1 III, having exhausted the supply of hydrogen at its core and expanded to 10.6 times the Sun's radius, or . It is a red clump giant, which indicates it is on the horizontal branch and is generating energy through helium fusion at the core. The star is 1.4 billion years old with 1.9 time ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nu Ceti
ν Ceti, Latinized as Nu Ceti, is a binary star system in the equatorial constellation of Cetus. It is visible to the naked eye as a faint point of light with a combined apparent visual magnitude of 4.86. The system is located approximately 340 light years distant from the Sun, based on parallax, and is drifting further away with a radial velocity of 4.8 km/s. Nu Ceti is believed to be part of the Ursa Major stream of co-moving stars. In Chinese, (), meaning '' Circular Celestial Granary'', refers to an asterism consisting of α Ceti, κ1 Ceti, λ Ceti, μ Ceti, ξ1 Ceti, ξ2 Ceti, ν Ceti, γ Ceti, δ Ceti, 75 Ceti, 70 Ceti, 63 Ceti and 66 Ceti. Consequently, the Chinese name for ν Ceti itself is "the Seventh Star of Circular Celestial Granary", . [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kappa1 Ceti
Kappa1 Ceti, Latinized from κ1 Ceti, is a variable yellow dwarf star approximately 30 light-years away in the equatorial constellation of Cetus. Bayer used the designations κ Ceti and g Tauri for the same star. g Tauri is now no longer used. The star was discovered to have a rapid rotation, roughly once every nine days. Though there are no extrasolar planets confirmed to be orbiting the star, Kappa1 Ceti is considered a good candidate to contain terrestrial planets, like the Earth. The system is a candidate binary star, but has not been confirmed. Description Kappa1 Ceti has a spectrm of G5Vv, classifying it as a G dwarf that fuses hydrogen into helium on its core. Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified. The star has roughly the same mass as the Sun, with 95% of the Sun's radius and 88 percent of the luminosity. Its brightness varies by a few hundredths of a magnitude over a peri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stomach (Chinese Constellation)
The Stomach mansion (胃宿, pinyin: Wèi Xiù) is one of the twenty-eight mansions of the Chinese constellations. It is one of the western mansions of the White Tiger (Chinese constellation), White Tiger. Asterisms {{DEFAULTSORT:Stomach (Chinese Constellation) Chinese constellations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinese Astronomy
Astronomy in China has a long history stretching from the Shang dynasty, being refined over a period of more than 3,000 years. The Ancient China, ancient Chinese people have identified stars from 1300 BCE, as Chinese star names later categorized in the twenty-eight mansions have been found on oracle bones unearthed at Anyang, dating back to the mid-Shang dynasty. The core of the "mansion" (宿 ''xiù'') system also took shape around this period, by the time of King Wu Ding (1250–1192 BCE). Detailed records of astronomical observations began during the Warring States period (fourth century BCE). They flourished during the Han period (202 BCE – 220 CE) and subsequent dynasties with the publication of star catalogues. Chinese astronomy was equatorial, centered on close observation of circumpolar stars, and was based on different principles from those in traditional Western astronomy, where heliacal risings and settings of zodiac constellations formed the basic ecliptic framew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
