Ï€ Andromedae
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Ï€ Andromedae
Pi Andromedae is a binary star system in the northern constellation of Andromeda. Its Bayer designation is latinized from Ï€ Andromedae, and abbreviated Pi And or Ï€ And, respectively. With an apparent visual magnitude of 4.4, it is visible to the naked eye. Based on parallax measurements, it is located at a distance of approximately from Earth. The pair is classified as a blue-white B-type main sequence dwarf, with an apparent magnitude of +4.34. It is a spectroscopic binary with an orbital period of 143.5 days and an eccentricity of 0.54. The spectroscopic binary forms a triple system with ''BD+32 102'', a magnitude 8.6 star located 35.9 arcseconds away. At 55 arcseconds separation is an 11th magnitude companion that is just located on the same line of sight, but at a very different distance from us. Naming In Chinese, (), meaning ''Legs (asterism)'', refers to an asterism consisting of Ï€ Andromedae, η Andromedae, 65 Piscium, ζ Andromedae, ...
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Andromeda (constellation)
Andromeda is one of the 48 constellations listed by the 2nd-century Greco-Roman astronomer Ptolemy, and one of the 88 modern constellations. Located in the northern celestial hemisphere, it is named for Andromeda, daughter of Cassiopeia, in the Greek myth, who was chained to a rock to be eaten by the sea monster Cetus. Andromeda is most prominent during autumn evenings in the Northern Hemisphere, along with several other constellations named for characters in the Perseus myth. Because of its northern declination, Andromeda is visible only north of 40° south latitude; for observers farther south, it lies below the horizon. It is one of the largest constellations, with an area of 722 square degrees. This is over 1,400 times the size of the full moon, 55% of the size of the largest constellation, Hydra, and over 10 times the size of the smallest constellation, Crux. Its brightest star, Alpheratz (Alpha Andromedae), is a binary star that has also been counted as a part ...
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Legs (Chinese Constellation)
The Legs mansion (奎宿, pinyin: Kuí Xiù) is one of the Twenty-Eight Mansions of the Chinese constellations. It is one of the western mansions of the White Tiger. The constellation Kui within the lunar mansion consists of 16 stars in the Western constellations Andromeda and Pisces. An older name of the constellation, dating back to the Neolithic, was Tianshi (天豕), the Celestial Pig, with Zeta Andromedae as the pig's eye. Zeta Andromedae was originally the determinative star of Kui, but this became Eta Andromedae during the Qing dynasty. Cultural significance In East Asian cultures, the Legs mansion (Kuí Xiù) represents wisdom, scholarship and literature. A notable example is a structure known as "Kuiwen Pavilion" (奎文閣) in the many Confucius temples in China and other East Asian countries. A jade Jade is an umbrella term for two different types of decorative rocks used for jewelry or Ornament (art), ornaments. Jade is often referred to by either of t ...
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Phi Piscium
Phi Piscium, Latinized from φ Piscium, is a quadruple star system approximately 380 light years away in the constellation Pisces. It consists of Phi Piscium A, with a spectral type of K0III, and Phi Piscium B. Phi Piscium A possesses a surface temperature of 3,500 to 5,000 kelvins. Some suggest the only visible companion in the Phi Piscium B sub-system is a late F dwarf star, while others suggest it is a K0 star. The invisible component of the Phi Piscium B sub-system is proposed to have a spectral type of M2V. The star system has a period of about 20½ years and has a notably high eccentricity of 0.815. Naming In Chinese, (), meaning ''Legs (asterism)'', refers to an asterism consisting of refers to an asterism consisting of φ Piscium, η Andromedae, 65 Piscium, ζ Andromedae, ε Andromedae, δ Andromedae, Ï€ Andromedae, ν Andromedae, μ Andromedae, β Andromedae, σ Piscium, Ï„ Piscium, 91 Piscium, Ï… Piscium Upsilon Piscium is a solitary, w ...
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Upsilon Piscium
Upsilon Piscium is a solitary, white-hued star in the zodiac constellation of Pisces. It is faintly visible to the naked eye, having an apparent visual magnitude of +4.75. Based upon an annual parallax shift of as seen from Earth, it is located about 308 light years from the Sun. The star is drifting further away with a heliocentric radial velocity of +6 km/s. This is an ordinary A-type main sequence star with a stellar classification of A3 V. It is 461 million years old – about 98% of the way through its main sequence lifetime – and is spinning with a projected rotational velocity of 91 km/s. The star has 2.8 times the mass of the Sun, about 2.2 times the Sun's radius, and is radiating 117 times the Sun's luminosity from its photosphere at an effective temperature of 9183 K. Naming Ï… Piscium is the Bayer designation for this star, which is Latinized as Upsilon Piscium. It has the Flamsteed designation 90 Piscium. In Chinese, ...
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91 Piscium
This is the list of notable stars in the constellation Pisces, sorted by decreasing brightness. See also *List of stars by constellation References * * * * * {{Stars of Pisces *List Pisces Pisces may refer to: *Pisces (astrology), an astrological sign Astronomy *Pisces (constellation), a constellation ** Pisces Overdensity, an overdensity of stars in the Milky Way's halo that is situated in the Pisces constellation ** Pisces II, a ...
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Tau Piscium
Tau Piscium (Ï„ Piscium) is an orange-hued star in the zodiac constellation of Pisces. With an apparent visual magnitude of +4.52, it is a dim star but visible to the naked eye. Based upon an annual parallax shift of 19.32  mas as seen from Earth, it is located around 169 light years from the Sun. It is most likely (96% chance) a member of the thin disk population. This is an evolved K-type giant star with a stellar classification of K0.5 IIIb. It is about 2.27 billion years and is a red clump star on the horizontal branch, which indicates it is generating energy through helium fusion at its core. The star has 1.7 times the mass of the Sun and has expanded to about 10 times the Sun's radius. It is radiating 45 times the Sun's luminosity from its photosphere at an effective temperature of 4,624 K. Naming In Chinese, (), meaning ''Legs'', refers to an asterism consisting of Ï„ Piscium, η Andromedae, 65 Piscium, ζ Andromedae, ε And ...
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Sigma Piscium
Sigma Piscium (Sigma Psc, σ Piscium, σ Psc) is a binary star in the zodiac constellation of Pisces. It has an apparent magnitude of +5.50, meaning it is barely visible to the naked eye, according to the Bortle scale. While parallax measurements by the Hipparcos spacecraft give a distance of approximately 430 light years (133 parsecs), dynamical parallax measurements put it slightly closer, at 368 light-years (113 parsecs) from Earth. Sigma Piscium is a spectroscopic binary system, meaning the components of the system have been detected from periodic Doppler shifts in their spectra. In this case, light from both stars can be detected and it is double-lined. It has an orbital period of 81 days, and the orbit is relatively eccentric, at about 0.9. Both components are B-type main-sequence stars. Sigma Piscium is moving through the Milky Way at a speed of 23.5 km/s relative to the Sun. Its projected galactic orbit carries it between 24,300 and 29,40 ...
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Beta Andromedae
Mirach is a prominent star in the northern constellation of Andromeda. It is pronounced and has the Bayer designation Beta Andromedae, which is Latinized from β Andromedae. This star is positioned northeast of the ''Great Square'' of Pegasus and is potentially visible to all observers north of latitude 54° S. It is commonly used by stargazers to find the Andromeda Galaxy. The galaxy NGC 404, also known as Mirach's Ghost, is seven arcminutes away from Mirach. This star has an apparent visual magnitude of around 2.07, varying between 2.01 and 2.10, which at times makes it the brightest star in the constellation. Based upon parallax measurements, it is roughly from the Solar System. Its apparent magnitude is reduced by 0.06 by extinction due to gas and dust along the line of sight. The star has a negligible radial velocity of 0.1 km/s, but with a relatively large proper motion, traversing the celestial sphere at an angular rate of ·yr−1. Properties Mirach ...
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Mu Andromedae
Mu Andromedae is a binary star system in the northern constellation of Andromeda. Its Bayer designation is Latinized from μ Andromedae, and abbreviated Mu And or μ And, respectively. The system has an apparent visual magnitude of 3.87, making it readily visible to the naked eye. Based upon parallax measurements, it is located at a distance of approximately from Earth. In the constellation, the star is situated about halfway between the bright star Mirach to the southwest and the Andromeda Galaxy (M31) to the northeast. The spectrum of this star matches a stellar classification of A5 V, indicating that it is an A-type main sequence star. It has 2.2 times the mass of the Sun and three times the Sun's radius. The star is radiating about 40 times the luminosity of the Sun from its outer envelope at an effective temperature of 8,320 K, giving it the characteristic white glow of an A-type star. It is estimated to be about 724 million years o ...
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Nu Andromedae
Nu Andromedae is a binary star system in the constellation Andromeda. Its Bayer designation is Latinized from ν Andromedae, and abbreviated Nu And or ν And, respectively. The system has an apparent visual magnitude of 4.5, which is bright enough to be seen with the naked eye. Based on parallax measurements, it is located at a distance of approximately from Earth. The pair are drifting closer with a heliocentric radial velocity of –24 km/s. Situated just over a degree to the west of this star is the Andromeda Galaxy. Nu Andromedae is close spectroscopic binary A binary star or binary star system is a system of two stars that are gravitationally bound to and in orbit around each other. Binary stars in the night sky that are seen as a single object to the naked eye are often resolved as separate stars us ... system with a period of 4.2828 days and a nearly circular orbit. The primary component is a B-type main sequence star with a stellar class ...
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Delta Andromedae
Delta Andromedae is a triple star system in the northern constellation of Andromeda. Its identifier is a Bayer designation that is Romanization of Greek, Latinized from δ Andromedae, and abbreviated Delta And or δ And, respectively. The system is visible to the naked eye as a point of light with a combined apparent visual magnitude of 3.28. Based upon stellar parallax, parallax measurements, it is located at a distance of approximately from the Sun. The system is drifting closer with a radial velocity of −10 km/s. In Chinese astronomy, Chinese, (), meaning ''Legs (Chinese constellation), Legs (asterism)'', refers to an asterism consisting of δ Andromedae, Eta Andromedae, η Andromedae, 65 Piscium, Zeta Andromedae, ζ Andromedae, Iota Piscium, ι Piscium, Epsilon Andromedae, ε Andromedae, Pi Andromedae, Ï€ Andromedae, Nu Andromedae, ν Andromedae, Mu Andromedae, μ Andromedae, Beta Andromedae, β Andromedae, Sigma Piscium, σ Piscium, Tau Piscium ...
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Epsilon Andromedae
Epsilon Andromedae is a star in the constellation of Andromeda. Its identifier is a Bayer designation that is Latinized from ε Andromedae, and abbreviated eps And or ε And, respectively. This star can be seen with the naked eye, having an apparent visual magnitude of 4.4. Based upon an annual parallax shift of 19.2  mas as seen from Earth, it is located approximately 169 light years from the Sun. The system is moving closer to the Sun with a radial velocity of −84 km/s. Its orbit in the Milky Way is highly eccentric, causing it to move rapidly relative to the Sun and its neighboring stars. This is an evolved G-type giant star with a stellar classification of . The suffix notation indicates there is a strong underabundance of iron in the spectrum, and an overabundance of cyanogen (CN). ε Andromedae is believed to be a red clump star which is fusing helium in its core. It has about the same mass as the Sun, but has expanded ...
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