HD 189733 b

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HD 189733 b compared with Jupiter

HD 189733 b is an exoplanet. It is approximately 64.5 light years away from the Solar System.[1] It a hot Jupiter. It is 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]

References[change | change source]

  1. 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. doi:10.1051/0004-6361/201833051. ISSN 0004-6361.
  2. 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. doi:10.1051/0004-6361:200500201. ISSN 0004-6361.
  3. 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. doi:10.1051/0004-6361/201629473. ISSN 0004-6361.