About: Rho1 Eridani

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Rho1 Eridani (Rho1 Eri, ρ1 Eri), is a star located in the constellation Eridanus. It forms an asterism with the stars Rho2 and Rho3 Eridani, south of Cetus, in the upper north east portion of Eridanus. The star has an apparent visual magnitude of 5.75, which indicates it is faintly visible to the naked eye on a clear, dark night. Based upon parallax measurements made with the Hipparcos satellite, this star is roughly 320 light years away from the Sun. Judging from changes to its proper motion, there is a chance that this is an astrometric binary.

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  • Rho1 Eridani (Rho1 Eri, ρ1 Eri), is a star located in the constellation Eridanus. It forms an asterism with the stars Rho2 and Rho3 Eridani, south of Cetus, in the upper north east portion of Eridanus. The star has an apparent visual magnitude of 5.75, which indicates it is faintly visible to the naked eye on a clear, dark night. Based upon parallax measurements made with the Hipparcos satellite, this star is roughly 320 light years away from the Sun. Judging from changes to its proper motion, there is a chance that this is an astrometric binary. This is an evolved K-type giant star with a stellar classification of K0 III. It is a red clump giant on the horizontal branch of the Hertzsprung–Russell diagram, indicating that is it now generating energy through the thermonuclear fusion of helium at its core. The star has more than twice the mass of the Sun and has expanded to 10 times the Sun's radius. As such, it is radiating nearly 47 times the solar luminosity from its outer atmosphere at an effective temperature of 4,710 K. (en)
  • Rho1 Eridani (8 Eridanus) é uma estrela na direção da constelação de Eridanus. Possui uma ascensão reta de 03h 01m 09.97s e uma declinação de −07° 39′ 46.2″. Sua magnitude aparente é igual a 5.75. Considerando sua distância de 304 anos-luz em relação à Terra, sua magnitude absoluta é igual a 0.90. Pertence à classe espectral K0II. (pt)
  • Rho1 Eridani (ρ1 Eridani, förkortat Rho1 Eri, ρ1 Eri) som är stjärnans Bayerbeteckning, är en ensam stjärna belägen i den nordvästra delen av stjärnbilden Eridanus. Den har en skenbar magnitud på 5,75, är svagt synlig för blotta ögat där ljusföroreningar ej förekommer och bildar en asterism med stjärnorna Rho2 och Rho3 Eridani, söder om Cetus. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 10,1 mas, beräknas den befinna sig på ett avstånd på ca 320 ljusår (ca 99 parsek) från solen. Utgående från förändringar av dess egenrörelse, finns det sannolikhet för att den är en astrometrisk dubbelstjärna. (sv)
  • 波江座ρ，又名BD-08 562，HD 18784、SAO 130243、HR 907，是波江座的一颗恒星，视星等为5.75，位于銀經186.62，銀緯-53.64，其B1900.0坐标为赤經2h 56m 14.9s，赤緯-8° -53.64′ 25″。 (zh)
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  • 0.899000 (xsd:double)
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  • 5.750000 (xsd:double)
dbp:bV
  • +1.04 (en)
dbp:class
  • K0 III (en)
dbp:constell
dbp:epoch
  • J2000.0 (en)
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  • 2.700000 (xsd:double)
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  • 46.900000 (xsd:double)
dbp:mass
  • 2.050000 (xsd:double)
dbp:metalFe
  • 0.090000 (xsd:double)
dbp:pError
  • 0.510000 (xsd:double)
dbp:parallax
  • 10.070000 (xsd:double)
dbp:propMoDec
  • −69.97 (en)
dbp:propMoRa
  • +101.02 (en)
dbp:radius
  • 10 (xsd:integer)
dbp:rotationalVelocity
  • 2.400000 (xsd:double)
dbp:temperature
  • 4710 (xsd:integer)
dbp:uB
  • +0.86 (en)
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rdfs:comment
  • Rho1 Eridani (8 Eridanus) é uma estrela na direção da constelação de Eridanus. Possui uma ascensão reta de 03h 01m 09.97s e uma declinação de −07° 39′ 46.2″. Sua magnitude aparente é igual a 5.75. Considerando sua distância de 304 anos-luz em relação à Terra, sua magnitude absoluta é igual a 0.90. Pertence à classe espectral K0II. (pt)
  • Rho1 Eridani (ρ1 Eridani, förkortat Rho1 Eri, ρ1 Eri) som är stjärnans Bayerbeteckning, är en ensam stjärna belägen i den nordvästra delen av stjärnbilden Eridanus. Den har en skenbar magnitud på 5,75, är svagt synlig för blotta ögat där ljusföroreningar ej förekommer och bildar en asterism med stjärnorna Rho2 och Rho3 Eridani, söder om Cetus. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 10,1 mas, beräknas den befinna sig på ett avstånd på ca 320 ljusår (ca 99 parsek) från solen. Utgående från förändringar av dess egenrörelse, finns det sannolikhet för att den är en astrometrisk dubbelstjärna. (sv)
  • 波江座ρ，又名BD-08 562，HD 18784、SAO 130243、HR 907，是波江座的一颗恒星，视星等为5.75，位于銀經186.62，銀緯-53.64，其B1900.0坐标为赤經2h 56m 14.9s，赤緯-8° -53.64′ 25″。 (zh)
  • Rho1 Eridani (Rho1 Eri, ρ1 Eri), is a star located in the constellation Eridanus. It forms an asterism with the stars Rho2 and Rho3 Eridani, south of Cetus, in the upper north east portion of Eridanus. The star has an apparent visual magnitude of 5.75, which indicates it is faintly visible to the naked eye on a clear, dark night. Based upon parallax measurements made with the Hipparcos satellite, this star is roughly 320 light years away from the Sun. Judging from changes to its proper motion, there is a chance that this is an astrometric binary. (en)
rdfs:label
  • Rho1 Eridani (en)
  • Rho1 Eridani (pt)
  • Rho1 Eridani (sv)
  • 波江座ρ (zh)
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foaf:name
  • ρ1 Eridani (en)
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