Astronomy:OGLE-2016-BLG-1195Lb

From HandWiki
Short description: Frigid super-Earth orbiting OGLE-2016-BLG-1195L
OGLE-2016-BLG-1195Lb
PIA21430-Exoplanet-OGLE2016BLG1195Lb-20170426.jpg
(obsolete image) Icy Earth-like exoplanet about the same distance from its host star as the Earth is to the Sun (artist concept).[1][2][3][4][5]
Discovery[3][4]
Discovery siteKorea Astronomy and Space Science Institute and Spitzer Space Telescope[4]
Discovery date2017
Gravitational microlensing[4]
Orbital characteristics
2.62±0.28
StarOGLE-2016-BLG-1195L
Physical characteristics
Mass9.91±1.61[6] M⊕


OGLE-2016-BLG-1195Lb is an extrasolar planet located about 22,000 light-years from Earth, in the galactic bulge, orbiting the 0.57±0.06 M☉[6] star OGLE-2016-BLG-1195L, discovered in 2017.[4][5][3] The planet was detected using gravitational microlensing techniques managed by the Korea Astronomy and Space Science Institute and the Spitzer Space Telescope. Initially, it was believed the planet has a mass similar to Earth and is located about the same distance from its host star as the Earth is from the Sun,[4] although it was expected to be much colder.[7][8][4]

In 2023, the planetary mass estimate was significantly increased to 9.91±1.61 M⊕, resulting in it likely being a Neptune-like ice giant planet.[6]

In popular culture

The planet has been referred to as Hoth due to its resemblance (before 2023 parameters update) to the planet with the same name from the Star Wars franchise.[8] A similar exoplanet, OGLE-2005-BLG-390Lb, has also been compared to Hoth, by NASA in this instance.[9]

See also


References

  1. ↑ Shvartzvald, Y (1 May 2017). "An Earth-mass Planet in a 1 au Orbit around an Ultracool Dwarf". The Astrophysical Journal Letters 840 (L3): L3. doi:10.3847/2041-8213/aa6d09. Bibcode: 2017ApJ...840L...3S. 
  2. ↑ Bond, I. A. (25 March 2017). "The Lowest Mass Ratio Planetary Microlens: OGLE 2016-BLG-1195Lb". Monthly Notices of the Royal Astronomical Society 469 (2): 2434–2440. doi:10.1093/mnras/stx1049. Bibcode: 2017MNRAS.469.2434B. 
  3. ↑ 3.0 3.1 3.2 Staff (2017). "Planet OGLE-BLG-1195L b". Extrasolar Planets Encyclopaedia. http://exoplanet.eu/catalog/ogle-blg-1195l_b/. Retrieved 27 April 2017. 
  4. ↑ 4.0 4.1 4.2 4.3 4.4 4.5 4.6 Staff (26 April 2017). "PIA21430: Iceball Planet Artist's Concept". NASA. https://photojournal.jpl.nasa.gov/catalog/PIA21430. 
  5. ↑ 5.0 5.1 Landau, Elizabeth (26 April 2017). "'Iceball' Planet Discovered Through Microlensing". NASA. https://www.jpl.nasa.gov/news/news.php?feature=6827. 
  6. ↑ 6.0 6.1 6.2 Vandorou, Aikaterini; Dang, Lisa; Bennett, David P.; Koshimoto, Naoki; Terry, Sean K.; Beaulieu, Jean-Phillipe; Alard, Christophe; Bhattacharya, Aparna et al. (2023), OGLE-2016-BLG-1195Lb: A SUB-NEPTUNE BEYOND THE SNOW LINE OF AN M-DWARF CONFIRMED BY KECK AO 
  7. ↑ "'Iceball' planet discovered through microlensing". https://www.sciencedaily.com/releases/2017/04/170426122437.htm. 
  8. ↑ 8.0 8.1 Strickland, Ashley (26 April 2017). "Icy Earth-mass exoplanet is 'colder than Hoth'". CNN. http://www.cnn.com/2017/04/26/us/ice-world-exoplanet-discovery-trnd/. 
  9. ↑ Brennan, Pat (15 December 2015). "8 planets that make you think Star Wars is real". NASA. https://exoplanets.nasa.gov/news/239/8-planets-that-make-you-think-star-wars-is-real/. 

Coordinates: Sky map 17h 55m 24.0s, −30° 12′ 26″




Retrieved from "https://handwiki.org/wiki/index.php?title=Astronomy:OGLE-2016-BLG-1195Lb&oldid=3346369"