39 Eridani (original) (raw)

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39 Eridanus (A Eridanus) é uma estrela na direção da Eridanus. Possui uma ascensão reta de 04h 14m 23.69s e uma declinação de −10° 15′ 21.2″. Sua magnitude aparente é igual a 4.87. Considerando sua distância de 206 anos-luz em relação à Terra, sua magnitude absoluta é igual a 0.86. Pertence à classe espectral K3III.

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dbo:abstract 39 Eridani is a wide binary star system in the equatorial constellation of Eridanus. It is visible to the naked eye as a faint, orange-hued star with a combined apparent visual magnitude of 4.87. As of 2015, the components had an angular separation of 6.4″ along a position angle of 143°. The system is moving further from the Sun with a heliocentric radial velocity of +7 km/s. The magnitude 5.07 primary, designated component A, is an aging giant star with a stellar classification of K3 III. This object is more than a billion years old with 1.77 times the mass of the Sun. With the hydrogen at its core exhausted, the star has expanded to 12 times the Sun's radius. It is a candidate super metal-rich star, showing a significant overabundance of iron compared to the Sun. 39 Eridani A is radiating 81.3 times the luminosity of the Sun from its swollen photosphere at an effective temperature of 4,641 K. The secondary, component B, is a magnitude 8.68 G-type main-sequence star with a class of G2 V. It has 1.15 times the Sun's radius and shines with 1.37 times the luminosity of the Sun at an effective temperature of 5,816 K. (en) 39 Eridanus (A Eridanus) é uma estrela na direção da Eridanus. Possui uma ascensão reta de 04h 14m 23.69s e uma declinação de −10° 15′ 21.2″. Sua magnitude aparente é igual a 4.87. Considerando sua distância de 206 anos-luz em relação à Terra, sua magnitude absoluta é igual a 0.86. Pertence à classe espectral K3III. (pt) 39 Eridani, som är stjärnans Flamsteed-beteckning, är en vid dubbelstjärna belägen i den norra delen av stjärnbilden Eridanus, som också har Bayer-beteckningen A Eridani. Den har en kombinerad skenbar magnitud på ca 4,87 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 13,5 mas, beräknas den befinna sig på ett avstånd på ca 240 ljusår (ca 74 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet av ca 7 km/s. år. (sv) 波江座39,又名BD-10 867,HD 26846、SAO 149478、HR 1318,是波江座的一颗恒星,视星等为4.87,位于銀經203.58,銀緯-39.45,其B1900.0坐标为赤經4h 9m 38.2s,赤緯-10° -39.45′ 16″。 (zh)
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dbp:absmagV 0.520000 (xsd:double)
dbp:appmagV 4.870000 (xsd:double) (en)
dbp:class (en) K3 III + G2 V (en)
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dbp:luminosity 81.300000 (xsd:double)
dbp:pError 0.600000 (xsd:double)
dbp:parallax 13.460000 (xsd:double)
dbp:propMoDec −161.05 (en)
dbp:propMoRa −7.19 (en)
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rdfs:comment 39 Eridanus (A Eridanus) é uma estrela na direção da Eridanus. Possui uma ascensão reta de 04h 14m 23.69s e uma declinação de −10° 15′ 21.2″. Sua magnitude aparente é igual a 4.87. Considerando sua distância de 206 anos-luz em relação à Terra, sua magnitude absoluta é igual a 0.86. Pertence à classe espectral K3III. (pt) 39 Eridani, som är stjärnans Flamsteed-beteckning, är en vid dubbelstjärna belägen i den norra delen av stjärnbilden Eridanus, som också har Bayer-beteckningen A Eridani. Den har en kombinerad skenbar magnitud på ca 4,87 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 13,5 mas, beräknas den befinna sig på ett avstånd på ca 240 ljusår (ca 74 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet av ca 7 km/s. år. (sv) 波江座39,又名BD-10 867,HD 26846、SAO 149478、HR 1318,是波江座的一颗恒星,视星等为4.87,位于銀經203.58,銀緯-39.45,其B1900.0坐标为赤經4h 9m 38.2s,赤緯-10° -39.45′ 16″。 (zh) 39 Eridani is a wide binary star system in the equatorial constellation of Eridanus. It is visible to the naked eye as a faint, orange-hued star with a combined apparent visual magnitude of 4.87. As of 2015, the components had an angular separation of 6.4″ along a position angle of 143°. The system is moving further from the Sun with a heliocentric radial velocity of +7 km/s. (en)
rdfs:label 39 Eridani (en) 39 Eridani (pt) 39 Eridani (sv) 九州殊口一 (zh)
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