WASP-104b

WASP-104b
Exoplanet List of exoplanets
Parent star
Star WASP-104
Physical characteristics
Mass(m)≈2.4144 x 10^27 kg (1.272 greater than Jupiter's)[1] MJ
Radius(r)≈79488.807 km (1.137 greater than Jupiter's)[1] RJ
Rotation period(ω)1.8[1]

WASP-104b is a hot Jupiter exoplanet that orbits the star WASP-104. It is considered to be one of the darkest exoplanets discovered.[2][3] 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.[2]

Characteristics

Darkness potential

Researchers have considered WASP-104b to be one of the darkest exoplanets ever discovered.[2][4] 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.[2] A paper published by Cornell University Library describes the exoplanet as "darker than charcoal" and "one of the least reflective planets found to date".[2][5] The only other two exoplanets thought to be darker than WASP-104b are TrES-2b and WASP-12b.[2] Its reflectance has been compared with that of WASP-12b, which absorbs 94% of the light it receives.[6]

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.[1] It has 12.5 times the mass of Earth and a low density, and may be composed of gas.[1]

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 mi).[7][1] WASP-104 and its planet are located 466 light years away from the Sun in the constellation Leo.[1][2][7]

References

  1. 1 2 3 4 5 6 7 "WASP-104b". Exoplanet Exploration. 2014.
  2. 1 2 3 4 5 6 7 Lozovschi, Alexandra (23 April 2018). "'Darker Than Coal': Researchers Find A 'Hot Jupiter' That Absorbs Nearly 99 Percent Of Light". Inquisitr.
  3. ↑ "Distant Jupiter-like world may be the darkest planet ever found". New Scientist. 20 April 2018.
  4. ↑ Hignett, Katherine (23 April 2018). "Wasp-104b: Hot Jupiter Could Be Darkest Planet Ever Discovered". Newsweek.
  5. ↑ Močnik, T; Hellier, C; Southworth, J (2018). "WASP-104b is Darker than Charcoal". arXiv:1804.05334 [astro-ph.EP].
  6. ↑ 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.
  7. 1 2 "WASP-104 b". Exoplanet Data Explorer.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.