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- Rho Octantis, Latinized from ρ Octantis, is a star located in the southern circumpolar constellation Octans. With an apparent magnitude of 5.57, its faintly visible to the naked eye under ideal conditions. The star is located 215 light years away from the Solar System, but is drifting closer with a radial velocity of −11 km/s. Rho Octantis has a classification of A1/2 V, which states its a star with the traits of an A1 and A2 main-sequence star. It has nearly twice the mass of the Sun, and has a radius of 2.19 solar radii. The star radiates at a luminosity 21 times greater than the Sun from its photosphere at an effective temperature of 8,881 K, which gives it a white hue. Like many A-type stars, Rho Octantis rotates rapidly, with a projected rotational velocity of 128 km/s; it is 431 million years old. Rho Octantis has a common proper motion K0 companion 65.7” away. (en)
- Rho Octantis är en vit stjärna i huvudserien i Oktantens stjärnbild. Stjärnan har visuell magnitud +5,57 och är synlig för blotta ögat vid god seeing. Den befinner sig på ett avstånd av ungefär 215 ljusår. (sv)
- Rho Octantis (24 Octantis) é uma estrela na direção da constelação de Octans. Possui uma ascensão reta de 15h 43m 16.10s e uma declinação de −84° 27′ 55.8″. Sua magnitude aparente é igual a 5.57. Considerando sua distância de 217 anos-luz em relação à Terra, sua magnitude absoluta é igual a 1.45. Pertence à classe espectral A2V. (pt)
- 南極座ρ，又名CP-84 510，HD 137333、SAO 258731、HR 5729，是南極座的一颗恒星，视星等为5.57，位于銀經307.02，銀緯-23.02，其B1900.0坐标为赤經15h 20m 12s，赤緯-84° -23.02′ 55″。 (zh)
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- Rho Octantis är en vit stjärna i huvudserien i Oktantens stjärnbild. Stjärnan har visuell magnitud +5,57 och är synlig för blotta ögat vid god seeing. Den befinner sig på ett avstånd av ungefär 215 ljusår. (sv)
- Rho Octantis (24 Octantis) é uma estrela na direção da constelação de Octans. Possui uma ascensão reta de 15h 43m 16.10s e uma declinação de −84° 27′ 55.8″. Sua magnitude aparente é igual a 5.57. Considerando sua distância de 217 anos-luz em relação à Terra, sua magnitude absoluta é igual a 1.45. Pertence à classe espectral A2V. (pt)
- 南極座ρ，又名CP-84 510，HD 137333、SAO 258731、HR 5729，是南極座的一颗恒星，视星等为5.57，位于銀經307.02，銀緯-23.02，其B1900.0坐标为赤經15h 20m 12s，赤緯-84° -23.02′ 55″。 (zh)
- Rho Octantis, Latinized from ρ Octantis, is a star located in the southern circumpolar constellation Octans. With an apparent magnitude of 5.57, its faintly visible to the naked eye under ideal conditions. The star is located 215 light years away from the Solar System, but is drifting closer with a radial velocity of −11 km/s. (en)
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- Rho Octantis (en)
- Rho Octantis (pt)
- Rho Octantis (sv)
- 南極座ρ (zh)
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