Facts about Fomalhaut
- 08
Fomalhaut's surface temperature reaches approximately 8,590 Kelvin, making it roughly 50 percent hotter than our Sun's 5,778 Kelvin photosphere.
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Within 440 light-years of Earth, Fomalhaut belongs to the Castor Moving Group, a stellar association only 200 million years old, making it substantially younger than our 4.6-billion-year-old Sun.
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Approximately 440 million years ago, Fomalhaut's progenitor star formed in the same stellar nursery as Vega and Altair, three of the brightest stars visible from Earth's northern hemisphere.
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Spectroscopic observations reveal that Fomalhaut possesses an unusually strong magnetic field, approximately 1,200 times stronger than Earth's magnetic field.
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Fomalhaut's planetary system includes a confirmed terrestrial planet discovered in 2008 and potential additional companions within its distinctive debris rings.
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At approximately 8.7 solar masses, Fomalhaut is significantly more massive than our Sun and will exhaust its hydrogen fuel in roughly 1 billion years.
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The star's rapid rotation of approximately 16 kilometers per second causes it to bulge significantly at its equator, creating an oblate spheroid shape rather than a perfect sphere.
- 01
Located 25 light-years away, Fomalhaut is the 18th brightest star visible from Earth and hosts a debris disk detected by the Spitzer Space Telescope in 2004.