Facts about Gliese 273
- 10
Gliese 273 likely hosts a habitable-zone planet receiving stellar radiation comparable to Earth despite the star's dimness due to its close orbital distance.
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Gliese 273 emits primarily in infrared wavelengths due to its low surface temperature, making it invisible to the naked eye despite its proximity to Earth.
- 08
The star's rotation period remains uncertain, though red dwarfs of similar mass to Gliese 273 typically rotate once every 40 to 100 days.
- 07
Spectroscopic analysis reveals Gliese 273 possesses a metallicity of approximately -0.31 dex, indicating lower heavy element abundance than our Sun.
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Gliese 273 exhibits a relatively high proper motion of 1.19 arcseconds per year, indicating substantial movement through space compared to most nearby stars.
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Gliese 273's age is estimated between 7 and 10 billion years, making it substantially older than our Sun's current age of 4.6 billion years.
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An orbital period of approximately 190 days characterizes any potential habitable-zone planet around Gliese 273, significantly shorter than Earth's yearly orbit.
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Gliese 273's estimated surface temperature of approximately 3,800 Kelvin makes it significantly cooler than our Sun's 5,778 Kelvin photosphere.
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With a mass approximately 0.59 times that of our Sun, Gliese 273 burns hydrogen at a much slower rate than solar-mass stars.
- 01
Located 14.2 light-years away, Gliese 273 is a red dwarf star in the constellation Microscopium with an apparent magnitude of 10.76.