Phi Tauri (original) (raw)
Phi Tauri (52 Tauri) é uma estrela na direção da constelação de Taurus. Possui uma ascensão reta de 04h 20m 21.23s e uma declinação de +27° 21′ 03.4″. Sua magnitude aparente é igual a 4.97. Considerando sua distância de 342 anos-luz em relação à Terra, sua magnitude absoluta é igual a −0.13. Pertence à classe espectral K1III.
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| dbo:abstract | Phi Tauri (φ Tauri) is a solitary, orange-hued star in the zodiac constellation of Taurus. It has an apparent visual magnitude of +4.96, which indicates the star is faintly visible to the naked eye. Based upon an annual parallax shift of 10.16 mas as seen from Earth, it is located roughly 321 light years distant from the Sun. At that distance, the visual magnitude of the star is diminished by an extinction factor of 0.27 due to interstellar dust. This is an evolved, K-type giant star with a stellar classification of K1 III, currently (97% probability) on the red giant branch. It has an estimated 1.36 times the mass of the Sun and has expanded to 19 times the Sun's radius. At the age of roughly five billion years, it is radiating 131 times the Sun's luminosity from its inflated photosphere at an effective temperature of 4,479 K. Phi Tauri has a magnitude 7.51 visual companion located at an angular separation of 48.80 arc seconds along a position angle of 258°, as of 2015. The pair form a yellow and blue double that is visible in small telescopes. A fainter, magnitude 12.27 companion lies at a separation of 118.10 arc seconds along a position angle of 25°, as of 2001. (en) Phi Tauri (52 Tauri) é uma estrela na direção da constelação de Taurus. Possui uma ascensão reta de 04h 20m 21.23s e uma declinação de +27° 21′ 03.4″. Sua magnitude aparente é igual a 4.97. Considerando sua distância de 342 anos-luz em relação à Terra, sua magnitude absoluta é igual a −0.13. Pertence à classe espectral K1III. (pt) Fi Tauri (φ Tauri , förkortat Fi Tau, φ Tau) som är stjärnans Bayerbeteckning, är en ensam stjärna belägen i den norra delen av stjärnbilden Oxen. Den har en skenbar magnitud på 4,96 och är synlig för blotta ögat. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 10,2 mas, beräknas den befinna sig på ett avstånd av ca 321 ljusår (98 parsek) från solen. På detta avstånd minskar stjärnans skenbara magnitud med en skymningsfaktor på 0,27 beroende på interstellärt stoft. (sv) 砺石四，即金牛座φ（φ Tau，φ Tauri）是一对位于金牛座的双星，距离地球约342光年。 砺石四的主星砺石四A是一颗橙色K-型巨星，视星等为+4.97。它的伴星砺石四B的视星等为8.5，距离主星52角秒。 在中国古代星官系统中，它属于西方白虎七宿中昴宿的星官第四星，这也砺石四名字的来由。 (zh) |
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| dbp:absmagV | −0.15 (en) |
| dbp:appmagV | +4.957 (en) |
| dbp:bV | 1.154000 (xsd:double) |
| dbp:class | K1 III (en) |
| dbp:constell | dbr:Taurus_(constellation) |
| dbp:epoch | dbr:J2000.0 |
| dbp:equinox | J2000.0 (en) |
| dbp:pError | 0.260000 (xsd:double) |
| dbp:parallax | 10.160000 (xsd:double) |
| dbp:propMoDec | −78.28 (en) |
| dbp:propMoRa | −28.90 (en) |
| dbp:radialV | 1.270000 (xsd:double) |
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| gold:hypernym | dbr:Star |
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| rdfs:comment | Phi Tauri (52 Tauri) é uma estrela na direção da constelação de Taurus. Possui uma ascensão reta de 04h 20m 21.23s e uma declinação de +27° 21′ 03.4″. Sua magnitude aparente é igual a 4.97. Considerando sua distância de 342 anos-luz em relação à Terra, sua magnitude absoluta é igual a −0.13. Pertence à classe espectral K1III. (pt) Fi Tauri (φ Tauri , förkortat Fi Tau, φ Tau) som är stjärnans Bayerbeteckning, är en ensam stjärna belägen i den norra delen av stjärnbilden Oxen. Den har en skenbar magnitud på 4,96 och är synlig för blotta ögat. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 10,2 mas, beräknas den befinna sig på ett avstånd av ca 321 ljusår (98 parsek) från solen. På detta avstånd minskar stjärnans skenbara magnitud med en skymningsfaktor på 0,27 beroende på interstellärt stoft. (sv) 砺石四，即金牛座φ（φ Tau，φ Tauri）是一对位于金牛座的双星，距离地球约342光年。 砺石四的主星砺石四A是一颗橙色K-型巨星，视星等为+4.97。它的伴星砺石四B的视星等为8.5，距离主星52角秒。 在中国古代星官系统中，它属于西方白虎七宿中昴宿的星官第四星，这也砺石四名字的来由。 (zh) Phi Tauri (φ Tauri) is a solitary, orange-hued star in the zodiac constellation of Taurus. It has an apparent visual magnitude of +4.96, which indicates the star is faintly visible to the naked eye. Based upon an annual parallax shift of 10.16 mas as seen from Earth, it is located roughly 321 light years distant from the Sun. At that distance, the visual magnitude of the star is diminished by an extinction factor of 0.27 due to interstellar dust. (en) |
| rdfs:label | Phi Tauri (en) Phi Tauri (pt) Fi Tauri (sv) 砺石四 (zh) |
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| foaf:name | Phi Tauri (en) |
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