HD 189733 b
HD 189733 b is an exoplanet. It is approximately 64.5 light years away from the Solar System.[1] It is a hot Jupiter. It was found in the constellation of Vulpecula. It was discovered orbiting the star HD 189733 on October 5, 2005.[2] It has a mass 13% higher than that of Jupiter. HD 189733 b orbits HD 189733 once every 2.2 days. It has an orbital speed of 152.5 kilometres per second (341,000 mph).[3]
HD 189733 B Media
Short narrated video about the evaporation of HD 189733 b's atmosphere
An artist's conception of HD 189733 b following the 2013 confirmation of the planet's blue color by the Hubble Space Telescope. The appearance of HD 189733 b beyond the blue color is unknown.
An artist's impression of HD 189733 b showing rapid evaporation of the atmosphere
NASA Exoplanet Exploration Program "horror film poster" for HD 189733 b
Comparison of "hot Jupiter" exoplanets (artist concept). From top left to lower right: WASP-12b, WASP-6b, WASP-31b, WASP-39b, HD 189733 b, HAT-P-12b, WASP-17b, WASP-19b, HAT-P-1b and HD 209458 b.
References
- ↑ Gaia Collaboration. Gaia Data Release 2: Summary of the contents and survey properties. Astronomy & Astrophysics 616 (2018). p. A1. doi:10.1051/0004-6361/201833051.
- ↑ Bouchy, F.. ELODIE metallicity-biased search for transiting Hot Jupiters: II. A very hot Jupiter transiting the bright K star HD 189733. Astronomy & Astrophysics 444 (1) (2005). p. L15–L19. doi:10.1051/0004-6361:200500201.
- ↑ Khalafinejad, S.. Exoplanetary atmospheric sodium revealed by orbital motion: Narrow-band transmission spectroscopy of HD 189733b with UVES. Astronomy & Astrophysics 598 (2017). p. A131. doi:10.1051/0004-6361/201629473.
