About: BD−08°2823

An Entity of Type: star, from Named Graph: http://dbpedia.org, within Data Space: dbpedia.org:8891

BD−08°2823 is a star with a pair of exoplanetary companions in the faint equatorial constellation of Sextans. The star has an apparent visual magnitude of 9.86, which is too faint to be visible with the naked eye. This system is located at a distance of 135 light-years from the Sun based on parallax measurements, and is trending further away with a radial velocity of +53 km/s. It is a high proper motion star that is traversing the celestial sphere at the angular rate of 0.369″ yr−1.

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dbo:abstract
  • BD−08°2823 is a star with a pair of exoplanetary companions in the faint equatorial constellation of Sextans. The star has an apparent visual magnitude of 9.86, which is too faint to be visible with the naked eye. This system is located at a distance of 135 light-years from the Sun based on parallax measurements, and is trending further away with a radial velocity of +53 km/s. It is a high proper motion star that is traversing the celestial sphere at the angular rate of 0.369″ yr−1. This is an ordinary K-type main-sequence star with a stellar classification of K4:V, where the ':' notation indicates some uncertainty. Emission cores in the H and K lines suggest this is an active star, with the level of activity varying significantly over time. It is roughly five billion years old and is spinning with a projected rotational velocity of 1.4 km/s. Measurements of the activity variation suggest a rotation period of around 27 days. This star is smaller, cooler, and less massive than the Sun. Its metal content is slightly lower than in the Sun. The star is radiating 24% of the luminosity of the Sun from its photosphere at an effective temperature of 4,746 K. (en)
  • BD-08 2823 o BD-08º2823 (HIP 49067 / G 162-12) es una estrella en la constelación de Sextans de magnitud aparente +9,86.​ En 2009 se descubrieron dos planetas extrasolares orbitando alrededor de esta estrella.​ BD-08 2823 es una enana naranja de tipo espectral K3V con una temperatura efectiva de 4646 ± 63 K.Es una estrella de características similares a las de Gliese 783 A o Gliese 892, pero está siete veces más alejada que éstas, ya que se encuentra a 138 años luz del Sistema Solar.Su velocidad de rotación es de al menos 1,4 km/s, siendo su período de rotación de aproximadamente 26,6 días.Exhibe una metalicidad —abundancia relativa de elementos más pesados que el helio— muy parecida a la del Sol ([Fe/H] = -0,07 ± 0,03).Su masa es de 0,74 ± 0,07 masas solares y muestra actividad cromosférica.Aunque su edad no es bien conocida, se piensa que está en el rango de 4500 ± 4000 millones de años. (es)
  • BD-08°2823とは、太陽系から約140光年の距離にあるろくぶんぎ座の恒星である。視等級が9.9の暗い天体なので肉眼で見ることはできない。スペクトル型がK型に分類される橙色の主系列星で、2つの太陽系外惑星が発見されている。 (ja)
  • BD−08°2823 — звезда, которая находится в созвездии Секстант на расстоянии около 155 световых лет от Солнца. Вокруг звезды обращается, как минимум, две планеты. (ru)
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  • BD-082823 (en)
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  • ≥0.045 ± 0.007 (en)
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  • BD-08°2823とは、太陽系から約140光年の距離にあるろくぶんぎ座の恒星である。視等級が9.9の暗い天体なので肉眼で見ることはできない。スペクトル型がK型に分類される橙色の主系列星で、2つの太陽系外惑星が発見されている。 (ja)
  • BD−08°2823 — звезда, которая находится в созвездии Секстант на расстоянии около 155 световых лет от Солнца. Вокруг звезды обращается, как минимум, две планеты. (ru)
  • BD−08°2823 is a star with a pair of exoplanetary companions in the faint equatorial constellation of Sextans. The star has an apparent visual magnitude of 9.86, which is too faint to be visible with the naked eye. This system is located at a distance of 135 light-years from the Sun based on parallax measurements, and is trending further away with a radial velocity of +53 km/s. It is a high proper motion star that is traversing the celestial sphere at the angular rate of 0.369″ yr−1. (en)
  • BD-08 2823 o BD-08º2823 (HIP 49067 / G 162-12) es una estrella en la constelación de Sextans de magnitud aparente +9,86.​ En 2009 se descubrieron dos planetas extrasolares orbitando alrededor de esta estrella.​ (es)
rdfs:label
  • BD−08°2823 (en)
  • BD-08 2823 (es)
  • BD-08°2823 (ja)
  • BD−08°2823 (ru)
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