Английская Википедия:Beta Indi

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Шаблон:Short description Шаблон:Starbox begin Шаблон:Starbox observe Шаблон:Starbox character Шаблон:Starbox astrometry Шаблон:Starbox detail Шаблон:Starbox catalog Шаблон:Starbox reference Шаблон:Starbox end

Beta Indi, Latinized from β Indi, is the second brightest star in the southern constellation of Indus.[1] It is visible to the naked eye as a faint, orange-hued point of light with an apparent visual magnitude of 3.67.[2] The star is located approximately 600 light years from the Sun, based on parallax, but is drifting closer with a radial velocity of −5 km/s.[2]

The stellar classification of this star is K1II,[3] matching an evolved bright giant. Earlier it had been categorized as an ordinary giant with a class of K0III.[4] It is a hybrid giant with both a hot stellar corona and cool stellar winds, and is a weak X-ray source with a flux measured at Шаблон:Val.[5] Having consumed the supply of hydrogen at its core, this star has expanded off the main sequence and now has about 56[6] times the girth of the Sun. It is 53 million years old with 6.7 times the mass of the Sun.[7] The star is radiating 1,183 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,541 K.[6]

β Indi has a visual companion, CCDM J20548-5827B, with an apparent visual magnitude of approximately 12.5. As of 2015, it lies at an angular separation of Шаблон:Val along a position angle of 100° from the brighter component.[8]

References

Шаблон:Reflist

Шаблон:Stars of Indus

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