Cetus In Chinese Astronomy
The modern constellation Cetus lies across two of the quadrants, symbolized by the Black Tortoise of the North (北方玄武, ''Běi Fāng Xuán Wǔ'') and the White Tiger of the West (西方白虎, ''Xī Fāng Bái Hǔ''), that divide the sky in traditional Chinese uranography. The name of the western constellation in modern Chinese is 鯨魚座 (''jīng yú zuò''), meaning "the whale constellation". Stars The map of Chinese constellation in constellation Cetus 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 linksCetus – Chinese associations
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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 one day each year. 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 Mars#Celestial pole ...
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14 Ceti
14 Ceti is a single star in the equatorial constellation of Cetus. It is faintly visible to the naked eye under good viewing conditions, having an apparent visual magnitude of 5.84. The distance to 14 Ceti can be estimated from its annual parallax shift of , which puts it 187 light years away. It is moving further from the Earth with a heliocentric radial velocity of +11 km/s, having recently come no closer than . Gray (1989) as well as Houk and Swift (1999) have this star classified as an F-type main-sequence star with a stellar classification of F5 V. However, in the 5th revised edition of the Bright Star Catalogue it was classed by Hoffleit and Warren (1991) as a more evolved subgiant star with a class of F5 IV. The absolute magnitude and effective temperature for this star shows that it is entering the Hertzsprung gap, which is occupied by a class of stars that have consumed the hydrogen at their core but have not yet begun hydrogen fusion along ...
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20 Ceti
20 Ceti is a single star located around 590 light years away in the equatorial constellation of Cetus. It is faintly visible to the naked eye with apparent magnitude is 4.76. The '' Bright Star Catalogue'' has this star classified as M0III, matching an aging red giant star that has consumed the hydrogen at its core and expanded. Houk and Swift (1999) listed an earlier class of K5 III. It has around 60 times the Sun's radius and is radiating about 800 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 body that would emit the same total amount of electromagnetic radiation. Effective temperature is often used as an estimate of a body's surface temperature ... of 3,700 K. References {{DEFAULTSORT:20 Ceti M-type giants Cetus Durchmusterung objects Ceti, 20 005112 004147 0248 ...
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13 Ceti
13 Ceti is a triple star system in the equatorial constellation of Cetus. It is dimly visible to the naked eye with a combined apparent visual magnitude of 5.20. The system is located at a distance of approximately 69 light years from the Sun based on stellar parallax, and is drifting further away with a radial velocity of +10.4 km/s. It shares a common motion with the Hyades moving group, although it is too old to be a member. This star was identified as a visual binary system by G. W. Hough in 1844 and given the identifier HO 212. The pair have an orbital period of and an eccentricity of 0.77. The brighter member, designated component A, is an F-type main-sequence star with a stellar classification of F6 V and a visual magnitude of 5.61. It appears to have an active chromosphere and is classified as an RS Canum Venaticorum variable with a variable star designation of BU Cet. The star was detected as a source of soft X-ray emission by EXOSAT. ...
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12 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 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 constellat ...

Phi1 Ceti
Phi1 Ceti is a single star located in the equatorial constellation of Cetus. It is visible to the naked eye with an apparent visual magnitude of +4.78. Based upon an annual parallax shift of 13.96  mas, it is located about 234  light years from the Sun. Based upon the motion of this star through space, Phi1 Ceti is a probable member of the proposed Wolf 630 moving group. This is a set of stars centered on Wolf 630 that are moving nearly in parallel and have an age of around billion years. They may be former members of a dissolved open cluster. At an age of about 2.21 billion years, Phi1 Ceti is an evolved red clump giant star with a stellar classification of K0 III. It is presently on the horizontal branch and is generating energy through the nuclear fusion of helium at its core. The star is suspected of variability; it has been measured to vary between magnitudes 4.75 and 4.78. It has 1.6 times the mass of the Sun and has expanded to 11 times the ...
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18 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- ...

Phi3 Ceti
Phi3 Ceti is a solitary, orange-hued star in the equatorial constellation of Cetus. It is faintly visible to the naked eye with an apparent visual magnitude of 5.31. Based upon an annual parallax shift of as seen from Earth, it is located approximately 530 light years from the Sun, give or take 20 light years. The star is drifting closer with a radial velocity of −25.5 km/s. This is an evolved K-type giant star with a stellar classification of K5 III. It has about 1.4 times the mass and 44 times the radius of the Sun. The star radiates 441 times the solar luminosity from its 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 total amount of electromagnetic radiation. Effective temperature is often used as an estimate of a body's surface temperature ... of 3,974 K. References {{DEFAULTSORT:Phi3 Ceti K-type giants Cetus Ceti, Phi ...
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21 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 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 constellat ...

35 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- ...

33 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 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 constellat ...

29 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- ...