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Cancer (Chinese Astronomy)
According to traditional Chinese uranography, the modern constellation Cancer is located within the southern quadrant of the sky, which is symbolized as the Vermilion Bird of the South (南方朱雀, ''Nán Fāng Zhū Què''). The name of the western constellation in modern Chinese is 巨蟹座 (''jù xiè zuò''), meaning "the giant crab constellation". Stars The map of Chinese constellation in constellation Cancer area consists of: See also *Chinese astronomy *Traditional Chinese star names *Chinese constellations 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 Hellenistic t ... References {{reflist External links Cancer – 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、 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traditional 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 system of 283 asterisms under 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 Sì'', the Fourth Star of Celestial Ford). In the Qing Dynasty, Chinese knowledge of the sky was improved by the arrival of European star charts. ''Yixiang Kaocheng'', compiled in mid-18th century by then deputy Minister of Rites Ignaz Kög ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
35 Cancri
35 Cancri is a star in the zodiac constellation of Cancer, located 630 light years from the Sun. It is a challenge to view with the naked eye even under good seeing conditions, having an apparent visual magnitude of +6.55. The star is moving further from the Earth with a heliocentric radial velocity of +35 km/s, and is a member of the Beehive Cluster. This is a subgiant star with a stellar classification of G0 III. It is rotating at a relatively fast clip, giving it an oblate shape with an equatorial bulge that is 5% larger than the polar radius. 35 Cancri has a projected rotational velocity of 99 km/s and a rotation period of 0.5 days. This rotation is expected to decrease significantly as the star expands into a giant. It has nearly the same mass and size as the Sun, but is radiating 77 times the Sun's luminosity from its photosphere at an effective temperature The effective temperature of a body such as a star or planet is the temperature o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
83 Cancri
83 Cancri is an astrometric binary star system in the northern constellation of Cancer, positioned near the constellation border with Leo. It is a challenge to view with the naked eye, having an apparent visual magnitude of 6.61. Despite having a Flamsteed designation, the system was too faint to be included in the ''Bright Star Catalogue''. It is located at a distance of 133 light years from the Sun, based on parallax, but is drifting closer with a radial velocity of −15 km/s. 83 Cancri has a relatively high proper motion, traversing the celestial sphere at an angular rate of per annum. The pair have an orbital period of around 32 days and an eccentricity of about 0.6. The visible member of this system, designated component A, is an F-type main-sequence star with a stellar classification of F4V. Its atmosphere is enhanced with s-process elements, particularly strontium and yttrium, which is attributed to mass transfer from the companion while the latter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
78 Cancri
78 Cancri is a star in the zodiac constellation of Cancer, located 548 light years from the Sun. It is too faint to be viewed with the naked eye, having an apparent visual magnitude of 7.19. The star is moving away from the Earth with a relatively large radial velocity of +77.7 km/s. It is an evolved giant star with a stellar classification In astronomy, stellar classification is the classification of stars based on their spectral characteristics. Electromagnetic radiation from the star is analyzed by splitting it with a prism or diffraction grating into a spectrum exhibiting t ... of K3 III. References {{DEFAULTSORT:78 Cancri K-type giants Cancer (constellation) Durchmusterung objects Cancri, 78 078479 044918 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
71 Cancri ...
This is the list of notable stars in the constellation Cancer. The 121 stars are sorted by decreasing brightness, beginning with Beta Cancri, the brightest star in Cancer. See also *Lists of stars by constellation References Bibliography * * * * * * * * {{DEFAULTSORT:List of stars in Cancer *List Cancer Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. These contrast with benign tumors, which do not spread. Possible signs and symptoms include a lump, abnormal bl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
68 Cancri
68 may refer to: * 68 (number) * one of the years 68 BC, AD 68, 1968, 2068 * 68 Publishers, a Czech-Canadian publishing firm * '68 (band), an American rock band * '68 (comic book) a comic book series from Image Comics Image Comics is an American comic book publisher and is the third largest comic book and graphic novel publisher in the industry in both unit and market share. It was founded in 1992 by several high-profile illustrators as a venue for creator-o ... See also * List of highways numbered 68 {{Numberdis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Omicron2 Cancri
Omicron2 Cancri (ο2 Cnc, ο2 Cancri) is a solitary, yellow-white-hued star in the zodiac constellation of Cancer. With an apparent visual magnitude of +5.67, it can be viewed with the naked eye on a dark night. Based upon an annual parallax shift of 21.68 mas as seen from Earth, this star is located around 150 light-years from the Sun. It most likely forms a co-moving pair with Omicron1 Cancri. With a stellar classification of F0 IV, this is an F-type subgiant star that has left the main sequence and is evolving toward the giant stage. It is estimated to be roughly 300 million years old with a relatively high rotation rate, as shown by a projected rotational velocity of around 90.5 km/s. With 1.72 times the mass of the Sun and 1.62 times the Sun's radius, it is radiating 10.3 times the solar luminosity from its photosphere at an effective temperature of . The star has an infrared excess, suggesting it surrounded by a circumstellar debris disk. M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Omicron1 Cancri
Omicron1 Cancri, Latinised from ο1 Cancri, is a solitary, white-hued star in the zodiac constellation of Cancer. It is visible to the naked eye with an apparent visual magnitude of +5.20. Based upon an annual parallax shift of 21.87 mas as seen from Earth, this star is located around 149 light-years from the Sun. It most likely forms a co-moving pair with Omicron2 Cancri. With a stellar classification of A5 III, this appears to be an evolved, A-type giant star. At the age of about 600 million years, it has double the mass of the Sun and 1.86 times the Sun's radius. Omicron1 Cancri is radiating 13.4 times the solar luminosity from its photosphere at an effective temperature of about . Omicron1 Cancri has an infrared excess, indicating it surrounded by a circumstellar debris disk A debris disk (American English), or debris disc (Commonwealth English), is a circumstellar disk of dust and debris in orbit around a star. Sometimes these disks contain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
54 Cancri
54 Cancri is a star in the zodiac constellation of Cancer. It has an apparent visual magnitude of 6.38, which places it just below the normal brightness limit of stars visible to the naked eye. The annual parallax shift is 24.79 mas as measured from Earth's orbit, which yields a distance estimate of about 132 light years. It is moving away from the Sun with a radial velocity of +45 km/s. Measurement of the stars proper motion over time suggest changes due to an acceleration component, which may indicate it is a close binary system. The visible component has a stellar classification of G5 V, indicating it is an ordinary G-type main-sequence star that is generating energy through hydrogen fusion in its core region. Hall et al. (2007) classify it as a low-activity variable star A variable star is a star whose brightness as seen from Earth (its apparent magnitude) changes with time. This variation may be caused by a change in emitted light or by so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
50 Cancri
50 Cancri is a single star in the zodiac constellation of Cancer, located 183 light years away from the Sun. It has the Bayer designation A2 Cancri; ''50 Cancri'' is the Flamsteed designation. It is faintly visible to the naked eye as a white-hued star with an apparent visual magnitude of 5.89. The star is moving away from the Earth with a heliocentric radial velocity of 23 km/s, having come to within some 1.2 million years ago. This is a chemically peculiar A-type main-sequence star with a stellar classification of A1 Vp. It is a Lambda Boötis star displaying strongly-depleted iron peak and alpha process elements, but otherwise relatively normal solar abundances. The star shows no variability down to a detection limit of 1.6 millimagnitudes. It is 264 million years old with a relatively low projected rotational velocity of 18 km/s. 50 Cancri has 2.1 times the mass of the Sun and is radiating 11 times the Sun's luminosity from its photo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
45 Cancri
45 Cancri is a binary star system in the zodiac constellation of Cancer, located 680 light-years away from the Sun. It has the Bayer designation A1 Cancri; ''45 Cancri'' is the Flamsteed designation. It is visible to the naked eye as a faint, white-hued star at an apparent visual magnitude of 5.62. The pair form a double-lined spectroscopic binary with an orbital period of and an eccentricity of 0.46. They are drifting closer to the Earth with a heliocentric radial velocity of −6 km/s. The primary, designated component A, is an aging giant star with a stellar classification of G8 III, but has most likely not yet made multiple ascents up the red giant branch. It has 3.11 times the mass of the Sun and has expanded to 14 times the Sun's radius. The star is radiating 210 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 bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
27 Cancri
27 Cancri is a single star in the zodiac constellation of Cancer, located around 990 light-years away from the Sun. It is visible to the naked eye as a faint, red-hued star with a typical apparent visual magnitude of around +5.56. The star is moving closer to the Earth with a heliocentric radial velocity of −8.3 km/s. It is a member of the Arcturus stream, a group of stars with high proper motion and metal-poor properties thought to be the remnants of a small galaxy consumed by the Milky Way. This is an aging red giant with a stellar classification of M3 IIIa, currently on the asymptotic giant branch. It is classified as a semiregular variable star of type SRb and its brightness varies from magnitude +5.41 to +5.75 with a period of 40 days. The star is radiating around 2,455 times the Sun's luminosity 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 bod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |