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 189733b, HAT-P-12b, WASP-17b, WASP-19b, HAT-P-1b and HD 209458b.
References
- ↑ Gaia Collaboration; Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne, J. H. J.; Babusiaux, C.; Bailer-Jones, C. A. L.; Biermann, M.; Evans, D. W. (2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616: A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. ISSN 0004-6361. S2CID 49211658.
- ↑ Bouchy, F.; Udry, S.; Mayor, M.; Moutou, C.; Pont, F.; Iribarne, N.; Da Silva, R.; Ilovaisky, S.; Queloz, D. (2005). "ELODIE metallicity-biased search for transiting Hot Jupiters: II. A very hot Jupiter transiting the bright K star HD 189733". Astronomy & Astrophysics. 444 (1): L15–L19. arXiv:astro-ph/0510119. Bibcode:2005A&A...444L..15B. doi:10.1051/0004-6361:200500201. ISSN 0004-6361. S2CID 8775345.
- ↑ Khalafinejad, S.; von Essen, C.; Hoeijmakers, H. J.; Zhou, G.; Klocová, T.; Schmitt, J. H. M. M.; Dreizler, S.; Lopez-Morales, M.; Husser, T.-O. (2017). "Exoplanetary atmospheric sodium revealed by orbital motion: Narrow-band transmission spectroscopy of HD 189733b with UVES". Astronomy & Astrophysics. 598: A131. arXiv:1610.01610. Bibcode:2017A&A...598A.131K. doi:10.1051/0004-6361/201629473. ISSN 0004-6361. S2CID 55263138.
