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15 Eridani is a binary star system in the equatorial constellation of Eridanus. It is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 4.875. Based upon parallax measurements, the system is located around 260 light years away from the Sun. It is moving further from the Earth with a heliocentric radial velocity of 24 km/s.

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  • 15 Eridani (en)
  • 15 Eridani (sv)
  • 天苑增二 (zh)
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  • 15 Eridani, som är stjärnans Flamsteed-beteckning, är en dubbelstjärna belägen i den mellersta delen av stjärnbilden Eridanus. Den har en kombinerad skenbar magnitud på ca 4,88 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 12,8 mas, beräknas den befinna sig på ett avstånd på ca 260 ljusår (ca 78 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet av ca 24 km/s. (sv)
  • 波江座15,又名BD-22 1146,HD 20610、SAO 168452、HR 994,是波江座的一颗恒星,视星等为4.88,位于銀經213.26,銀緯-56.46,其B1900.0坐标为赤經3h 13m 56.8s,赤緯-22° -56.46′ 36″。 (zh)
  • 15 Eridani is a binary star system in the equatorial constellation of Eridanus. It is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 4.875. Based upon parallax measurements, the system is located around 260 light years away from the Sun. It is moving further from the Earth with a heliocentric radial velocity of 24 km/s. (en)
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absmag v
  • +0.85 (en)
age gyr
appmag v
axis
b-v
  • +0.90 (en)
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  • K0III (en)
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