Tau8 Eridani (original) (raw)
Tau8 Eridani (33 Eridani) é uma estrela na direção da constelação de Eridanus. Possui uma ascensão reta de 03h 53m 42.68s e uma declinação de −24° 36′ 44.0″. Sua magnitude aparente é igual a 4.64. Considerando sua distância de 385 anos-luz em relação à Terra, sua magnitude absoluta é igual a −0.72. Pertence à classe espectral B5V. É uma estrela variável SX Arietis.
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| dbo:abstract | Tau8 Eridani, Latinized from τ8 Eridani, is a binary star system in the constellation Eridanus. It is visible to the naked eye with a combined apparent visual magnitude of 4.65. The distance to this system can be estimated via the parallax method, yielding a value of around 380 light years. This is a single-lined spectroscopic binary star system with an orbital period of about 459 days and an eccentricity of 0.18. The primary component is a B-type main sequence star with a stellar classification of B6 V. It is a slowly pulsating B-type star that undergoes radial-velocity variation with a frequency of 1.1569 times per day. The star has about five times the mass of the Sun and shines with 256 times the Sun's luminosity. The outer atmosphere has an effective temperature of 11,858 K and may possess a longitudinal magnetic field with a strength of −140±71 G. (en) Tau8 Eridani (33 Eridani) é uma estrela na direção da constelação de Eridanus. Possui uma ascensão reta de 03h 53m 42.68s e uma declinação de −24° 36′ 44.0″. Sua magnitude aparente é igual a 4.64. Considerando sua distância de 385 anos-luz em relação à Terra, sua magnitude absoluta é igual a −0.72. Pertence à classe espectral B5V. É uma estrela variável SX Arietis. (pt) Tau8 Eridani, (τ8 Eridani, förkortat Tau88 Eri, τ8 Eri) som är stjärnans Bayerbeteckning, eller 33 Eridani, är en dubbelstjärna belägen i den mellersta delen av stjärnbilden Eridanus. Den har en genomsnittlig kombinerad skenbar magnitud på 4,64 och är synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 8,7 mas, beräknas den befinna sig på ett avstånd på ca 380 ljusår (ca 116 parsek) från solen. (sv) HD24587 — хімічно пекулярна зоря спектрального класу B6, що має видиму зоряну величину в смузі V приблизно 4,6.Вона розташована на відстані близько 385,5 світлових років від Сонця. (uk) |
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| dbp:absmagV | −0.67 (en) |
| dbp:appmagV | 4.630000 (xsd:double) |
| dbp:bV | −0.13 (en) |
| dbp:class | B6 V (en) |
| dbp:component | τ8 Eri A (en) |
| dbp:constell | dbr:Eridanus_(constellation) |
| dbp:epoch | J2000.0 (en) |
| dbp:gravity | 4 (xsd:integer) |
| dbp:luminosity | 256 (xsd:integer) |
| dbp:pError | 0.300000 (xsd:double) |
| dbp:parallax | 8.650000 (xsd:double) |
| dbp:propMoDec | −7.49 (en) |
| dbp:propMoRa | +31.28 (en) |
| dbp:radialV | +23 (en) |
| dbp:rotationalVelocity | 30 (xsd:integer) |
| dbp:temperature | 11858 (xsd:integer) |
| dbp:uB | −0.48 (en) |
| dbp:variable | dbr:Slowly_pulsating_B-type_star |
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| rdfs:comment | Tau8 Eridani (33 Eridani) é uma estrela na direção da constelação de Eridanus. Possui uma ascensão reta de 03h 53m 42.68s e uma declinação de −24° 36′ 44.0″. Sua magnitude aparente é igual a 4.64. Considerando sua distância de 385 anos-luz em relação à Terra, sua magnitude absoluta é igual a −0.72. Pertence à classe espectral B5V. É uma estrela variável SX Arietis. (pt) Tau8 Eridani, (τ8 Eridani, förkortat Tau88 Eri, τ8 Eri) som är stjärnans Bayerbeteckning, eller 33 Eridani, är en dubbelstjärna belägen i den mellersta delen av stjärnbilden Eridanus. Den har en genomsnittlig kombinerad skenbar magnitud på 4,64 och är synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 8,7 mas, beräknas den befinna sig på ett avstånd på ca 380 ljusår (ca 116 parsek) från solen. (sv) HD24587 — хімічно пекулярна зоря спектрального класу B6, що має видиму зоряну величину в смузі V приблизно 4,6.Вона розташована на відстані близько 385,5 світлових років від Сонця. (uk) Tau8 Eridani, Latinized from τ8 Eridani, is a binary star system in the constellation Eridanus. It is visible to the naked eye with a combined apparent visual magnitude of 4.65. The distance to this system can be estimated via the parallax method, yielding a value of around 380 light years. (en) |
| rdfs:label | Tau8 Eridani (en) Tau8 Eridani (pt) Tau8 Eridani (sv) HD24587 (uk) |
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| prov:wasDerivedFrom | wikipedia-en:Tau8_Eridani?oldid=1112284934&ns=0 |
| foaf:depiction | wiki-commons:Special:FilePath/Tau8EriLightCurve.png |
| foaf:isPrimaryTopicOf | wikipedia-en:Tau8_Eridani |
| foaf:name | τ8 Eridani (en) |
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