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LHS 475 b information


LHS 475 b
Artist's rendering of LHS 475b
Discovery
Discovered byJames Webb Space Telescope
Discovery date2023
Detection method
Transit
Orbital characteristics[1]
Orbital period (sidereal)
2.0291±0.0000 d
StarLHS 475
Physical characteristics[1]
Mean radius
0.99±0.05 R🜨
Mass0.91±0.19 M🜨
Temperature586 K (313 °C, 595 °F)

LHS 475 b is a terrestrial planet orbiting the star LHS 475 which is about 40.7 light years away, in the constellation of Octans.[2][3] It was the first extrasolar planet to be confirmed by the James Webb Space Telescope.[4] It completes an orbit every 2 days and is 99% the diameter of Earth. It is also one of the most similar-to-Earth exoplanets discovered, in terms of radius.[5]

  1. ^ a b "Open Exoplanet Catalogue - LHS 475 b".
  2. ^ "Exoplanet LHS 475 b and Its Star (Illustration)". WebbTelescope.org. Retrieved 2023-01-18.
  3. ^ Anderson, Natali (2023-01-12). "Webb Confirms Earth-Sized Planet around LHS 475 | Sci.News". Sci.News: Breaking Science News. Retrieved 2023-01-18.
  4. ^ Cowing, Keith (2023-01-12). "Webb Discovers LHS 475 b, An Earth-Sized, Rocky Planet". Astrobiology. Retrieved 2023-01-18.
  5. ^ Adkins, Jamie (2023-01-09). "NASA's Webb Confirms Its First Exoplanet". NASA. Retrieved 2023-01-18.

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