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HR 858 is a star with a planetary system located 104 light years from the Sun in the southern constellation of Fornax. It has a yellow-white hue and is visible to the naked eye but is a challenge to see with an apparent visual magnitude of 6.4. The star is drifting further away with a radial velocity of 10 km/s. It has an absolute magnitude of +3.82. There is a faint co-moving stellar companion, designated component B, at an angular separation of 8.4″. This corresponds to a projected separation of 270 AU. It is most likely a red dwarf star.

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rdf:type
rdfs:label
  • HR 858 (fr)
  • HR 858 (en)
  • HR 858 (ja)
  • HR 858 (pt)
  • HD 17926 (sv)
  • HD 17926 (zh)
rdfs:comment
  • HR 858 est un système planétaire constitué d'une étoile de type spectral F6V de magnitude apparente 6,382, ainsi que de trois planètes. Les trois planètes, détectées grâce au télescope spatial TESS, mesurent toutes environ deux fois le diamètre de la Terre. Le système est localisé à ∼104 a.l. (∼31,9 pc) de la Terre. (fr)
  • HR 858とは、惑星を持つことが確認されているろ座の方向に地球から約104光年離れた位置に存在する恒星である。黄色がかった白色をしており、肉眼で観測することが可能である。しかし、視等級は6.4であるため、肉眼で観測することは困難である。10km/sの視線速度で遠ざかっている。絶対等級は3.82である。 (ja)
  • HD 17926 ( eller HR 858) är en dubbelstjärna i den mellersta delen av stjärnbilden Ugnen. Den har en kombinerad skenbar magnitud av ca 6,38 och är mycket svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 2 på ca 31,3 mas, beräknas den befinna sig på ett avstånd på ca 104 ljusår (ca 32 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet på ca 10 km/s. (sv)
  • HD 17926,又名CD-31 1148,SAO 193951、HR 858,是一颗恒星,视星等为6.4,位于銀經228.14,銀緯-63.47,其B1900.0坐标为赤經2h 47m 43.1s,赤緯-31° -63.47′ 42″。 (zh)
  • HR 858 is a star with a planetary system located 104 light years from the Sun in the southern constellation of Fornax. It has a yellow-white hue and is visible to the naked eye but is a challenge to see with an apparent visual magnitude of 6.4. The star is drifting further away with a radial velocity of 10 km/s. It has an absolute magnitude of +3.82. There is a faint co-moving stellar companion, designated component B, at an angular separation of 8.4″. This corresponds to a projected separation of 270 AU. It is most likely a red dwarf star. (en)
  • HR 858 é uma estrela binária na constelação de Fornax. A estrela primária tem uma magnitude aparente visual de 6,38, estando próxima do limite de visibilidade a olho nu. Com base em medições de paralaxe pela sonda Gaia, o sistema está a um distância de aproximadamente 103 anos-luz (32 parsecs) da Terra. (pt)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/HR858-tess-exoplanets.png
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absmag v
  • +3.82 (en)
appmag v
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