About: HR 6384

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HR 6384 is a binary star system in the southern constellation of Ara, the Altar. The system is faintly visible to the naked eye with a combined apparent visual magnitude that fluctuates around 6.153, and it is located at a distance of approximately 1,300 light-years (400 parsecs) from the Sun. It is drifting closer with a radial velocity of around −34 km/s.

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  • HR 6384 is a binary star system in the southern constellation of Ara, the Altar. The system is faintly visible to the naked eye with a combined apparent visual magnitude that fluctuates around 6.153, and it is located at a distance of approximately 1,300 light-years (400 parsecs) from the Sun. It is drifting closer with a radial velocity of around −34 km/s. The system appears to be a close, interacting binary with a hot secondary component of class A or hotter. It forms a suspected ellipsoidal variable with a period of 80 days and an amplitude variation of 0.08 in magnitude. The primary component is an aging red giant/bright giant with a stellar classification of M1/M2II/III, currently on the asymptotic giant branch. With the supply of hydrogen at its core exhausted, it has expanded to 160 times the girth of the Sun. It is radiating 3,562 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 3,562 K. (en)
  • HD 155341 (V829 Arae) è una stella gigante rossa di magnitudine 6,13 situata nella costellazione dell'Altare. Dista 1284 anni luce dal sistema solare. (it)
  • 天壇座V829，又名CP-56 8098，HD 155341、SAO 244539、HR 6384，是天壇座的一颗恒星，视星等为6.09，位于銀經333.35，銀緯-10.48，其B1900.0坐标为赤經17h 5m 46.4s，赤緯-56° -10.48′ 4″。 (zh)
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dbp:absmagV
  • −2.20 (en)
dbp:appmagV
  • 6.153000 (xsd:double)
dbp:bV
  • +1.787 (en)
dbp:class
  • M1/M2II/III + A (en)
dbp:constell
dbp:epoch
  • J2000 (en)
dbp:pError
  • 0.193900 (xsd:double)
dbp:parallax
  • 2.240700 (xsd:double)
dbp:propMoDec
  • –7.033 (en)
dbp:propMoRa
  • 2.760000 (xsd:double)
dbp:uB
  • +1.340 (en)
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  • HD 155341 (V829 Arae) è una stella gigante rossa di magnitudine 6,13 situata nella costellazione dell'Altare. Dista 1284 anni luce dal sistema solare. (it)
  • 天壇座V829，又名CP-56 8098，HD 155341、SAO 244539、HR 6384，是天壇座的一颗恒星，视星等为6.09，位于銀經333.35，銀緯-10.48，其B1900.0坐标为赤經17h 5m 46.4s，赤緯-56° -10.48′ 4″。 (zh)
  • HR 6384 is a binary star system in the southern constellation of Ara, the Altar. The system is faintly visible to the naked eye with a combined apparent visual magnitude that fluctuates around 6.153, and it is located at a distance of approximately 1,300 light-years (400 parsecs) from the Sun. It is drifting closer with a radial velocity of around −34 km/s. (en)
rdfs:label
  • HR 6384 (en)
  • HD 155341 (it)
  • 天壇座V829 (zh)
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