About: Gliese 521

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

Gliese 521 is a double star in the northern constellation of Canes Venatici. The primary is suspected to host a substellar companion yet unconfirmed. The system is located at a distance of 43.6 light-years from the Sun based on parallax measurements, but is drawing closer with a radial velocity of −65.6 km/s. It is predicted to come as close as 15.70 light-years from the Sun in 176,900 years. This star is too faint to be visible to the naked eye, having an apparent visual magnitude of +10.26 and an absolute magnitude of 10.24.

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  • Gliese 521 is a double star in the northern constellation of Canes Venatici. The primary is suspected to host a substellar companion yet unconfirmed. The system is located at a distance of 43.6 light-years from the Sun based on parallax measurements, but is drawing closer with a radial velocity of −65.6 km/s. It is predicted to come as close as 15.70 light-years from the Sun in 176,900 years. This star is too faint to be visible to the naked eye, having an apparent visual magnitude of +10.26 and an absolute magnitude of 10.24. The primary is an M-type main-sequence star with a stellar classification of M1V. It is only about half the size and mass of the Sun. The star is rotating slowly with a projected rotational velocity of 0.85 km/s and a rotation period of roughly 49.5 days. The star has a lower metal-content compared to the Sun. It is radiating just 3% of the luminosity of the Sun from its photosphere at an effective temperature of 3,493 K. A faint stellar companion was announced by E. Jódar and associates in 2013. The companion has an angular separation of 521 mas along a position angle of 352.1°±1.4° from the primary. This is equivalent to a projected separation of 7.24±0.14 AU. (en)
  • Gliese 521 (GJ 521 / HIP 66625)​ es una estrella en la constelación de Canes Venatici, los perros de caza.Visualmente se localiza 3º al sur de 24 Canum Venaticorum aunque, de magnitud aparente +10,26,​ no es observable a simple vista.Está situada, de acuerdo a la reducción de los datos de paralaje de Hipparcos (76,87 ± 1,61 milisegundos de arco), a 42,4 años luz del Sistema Solar.Las estrellas conocidas más cercanas a ella son y , distantes 4,1 y 7,2 años luz respectivamente. La brillante θ Bootis está a 8,4 años luz de distancia.​ Gliese 521 es una enana roja de tipo espectral M2.0V.​Mucho más tenue que el Sol, tiene una luminosidad bolométrica —que incluye la luz infrarroja emitida— equivalente al 3,8% de la luminosidad solar,​ aunque es mucho más luminosa que otras enanas rojas más próximas como Próxima Centauri o Wolf 359.Tiene una temperatura efectiva de 3493 ± 50 K.​Su masa equivale al 51% de la masa solar​ y tiene un radio igual al 62% del radio solar.Gira sobre sí misma con una velocidad de rotación proyectada entre 0,9 y 2,0 km/s, lo que conlleva que su período de rotación puede ser de hasta 38 días.Presenta un contenido metálico parecido al del Sol, siendo su índice de metalicidad [M/H] = -0,02.​ (es)
  • Gliese 521 is een rode dwerg met een spectraalklasse van M1.V. De ster bevindt zich 43,6 lichtjaar van de zon. (nl)
  • Глизе 521 (Gliese 521) — звезда в северном созвездии Гончих Псов. Звезда имеет видимую звёздную величину +10.26m. Из измерений параллакса, полученных во время миссии Hipparcos, известно, что звезда удалена примерно на 43,22 св. лет (13,26 пк) от Солнца. Предполагается, что звезда имеет спутник, но это еще не подтверждено. (ru)
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  • M1V (en)
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  • Gliese 521 is een rode dwerg met een spectraalklasse van M1.V. De ster bevindt zich 43,6 lichtjaar van de zon. (nl)
  • Глизе 521 (Gliese 521) — звезда в северном созвездии Гончих Псов. Звезда имеет видимую звёздную величину +10.26m. Из измерений параллакса, полученных во время миссии Hipparcos, известно, что звезда удалена примерно на 43,22 св. лет (13,26 пк) от Солнца. Предполагается, что звезда имеет спутник, но это еще не подтверждено. (ru)
  • Gliese 521 is a double star in the northern constellation of Canes Venatici. The primary is suspected to host a substellar companion yet unconfirmed. The system is located at a distance of 43.6 light-years from the Sun based on parallax measurements, but is drawing closer with a radial velocity of −65.6 km/s. It is predicted to come as close as 15.70 light-years from the Sun in 176,900 years. This star is too faint to be visible to the naked eye, having an apparent visual magnitude of +10.26 and an absolute magnitude of 10.24. (en)
  • Gliese 521 (GJ 521 / HIP 66625)​ es una estrella en la constelación de Canes Venatici, los perros de caza.Visualmente se localiza 3º al sur de 24 Canum Venaticorum aunque, de magnitud aparente +10,26,​ no es observable a simple vista.Está situada, de acuerdo a la reducción de los datos de paralaje de Hipparcos (76,87 ± 1,61 milisegundos de arco), a 42,4 años luz del Sistema Solar.Las estrellas conocidas más cercanas a ella son y , distantes 4,1 y 7,2 años luz respectivamente. La brillante θ Bootis está a 8,4 años luz de distancia.​ (es)
rdfs:label
  • Gliese 521 (es)
  • Gliese 521 (en)
  • Gliese 521 (nl)
  • Глизе 521 (ru)
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