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WASP-104b

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Template:Planetbox begin Template:Planetbox star Template:Planetbox character Template:Planetbox end WASP-104b is a hot Jupiter exoplanet that orbits the star WASP-104. It is considered to be one of the darkest exoplanets discovered.[1][2] WASP-104b was discovered in 2014; according to a 2018 study at Keele University, the planet's dense atmosphere of potassium and sodium absorbs more than 97% of light it receives.[1]

Characteristics

Darkness potential

Researchers have considered WASP-104b to be one of the darkest exoplanets ever discovered.[1][3] In 2018, scientists from Keele University said the exoplanet's thick sodium and potassium atmosphere can absorb more than 97% of the light that falls on it.[1] A paper published by Cornell University Library describes the exoplanet as "darker than charcoal" and "one of the least reflective planets found to date".[1][4] The only other two exoplanets thought to be darker than WASP-104b are TrES-2b and WASP-12b.[1] Its reflectance has been compared with that of WASP-12b, which absorbs 94% of the light it receives.[5]

Size, radius, and temperature

WASP-104b's size is comparable to that of Jupiter; its mass and radius are 1.272 times and 1.137 times greater than Jupiter's, respectively.[6] It has 12.5 times the mass of Earth and a low density, and may be composed of gas.[6]

Orbit and host star

WASP-104b is the only known exoplanet to orbit WASP-104, a 3-billion-year-old G8 star. WASP-104b's orbital period is 1.8 days; it is located 2.6 million miles from its star and has an orbital radius of .02918 astronomical units (2,712,000 miles).[7][6] WASP-104 and its planet are located 466 light years away from the Sun in the constellation Leo .[6][1][7]

References

  1. ^ a b c d e f g Lozovschi, Alexandra (23 April 2018). "'Darker Than Coal': Researchers Find A 'Hot Jupiter' That Absorbs Nearly 99 Percent Of Light". Inquisitr.
  2. ^ "Distant Jupiter-like world may be the darkest planet ever found". New Scientist. 20 April 2018.
  3. ^ Hignett, Katherine (23 April 2018). "Wasp-104b: Hot Jupiter Could Be Darkest Planet Ever Discovered". Newsweek.
  4. ^ Močnik, T; Hellier, C; Southworth, J (2018). "WASP-104b is Darker than Charcoal". arXiv:1804.05334 [astro-ph.EP].
  5. ^ Jean-Pierre Chigne (24 April 2018). "WASP-104b Hot Jupiter Traps Nearly 99 Percent Of Light: What Is A Hot Jupiter And How Does It Form?". TechTimes.
  6. ^ a b c d Cite error: The named reference Exoplanet Exploration was invoked but never defined (see the help page).
  7. ^ a b "WASP-104 b". Exoplanet Data Explorer.


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