Astronomy:HD 196885 Ab

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Short description: Extrasolar planet in the constellation Delphinus
HD 196885 Ab
Discovery
Discovered byCorreia et al.
Discovery siteLa Silla Observatory
Discovery dateOctober 23, 2007
Radial velocity
Orbital characteristics
astron|astron|helion}}3.36 AU (503 Gm)
astron|astron|helion}}1.24 AU (186 Gm)
2.30 AU (344 Gm)
Eccentricity0.462
Orbital period1349 d
3.693 y
Average Orbital speed18.6
astron|astron|helion}}2451236
91.4
Semi-amplitude39.5
StarHD 196885 A


HD 196885 Ab (also referred to as HD 196885 b) is a Jovian planet with a minimum mass 2.96 times the mass of Jupiter.[1][2] This planet was discovered on October 23, 2007. In 2022, the planet's inclination and true mass were measured via astrometry, showing it to be about 3.39 ||J}}}}}}.[3]

References

  1. Correia, A. C. M.; Udry, S.; Mayor, M.; Eggenberger, A.; Naef, D.; Beuzit, J.-L.; Perrier, C.; Queloz, D. et al. (2008). "The ELODIE survey for northern extra-solar planets. IV. HD 196885, a close binary star with a 3.7-year planet". Astronomy and Astrophysics 479 (1): 271–275. doi:10.1051/0004-6361:20078908. Bibcode2008A&A...479..271C. 
  2. Schneider, J.. "Notes for star HD 196885". Extrasolar Planets Encyclopaedia. http://exoplanet.eu/star.php?st=HD+196885. Retrieved 2008-08-19. 
  3. Chauvin, G.; Videla, M.; Beust, H.; Mendez, R.; Correia, A. C. M.; Lacour, S.; Tokovinin, A.; Hagelberg, J.; Bouchy, F.; Boisse, I.; Villegas, C.; Bonavita, M.; Desidera, S.; Faramaz, V.; Forveille, T.; Gallenne, A.; Haubois, X.; Jenkins, J. S.; Kervella, P.; Lagrange, A. -M.; Melo, C.; Thebault, P.; Udry, S.; Segransan, D. (2022). "Chasing extreme planetary architectures: I- HD196885Ab, a super-Jupiter dancing with two stars?". arXiv:2211.00994 [astro-ph.EP].

External links

Coordinates: Sky map 20h 39m 51.8756s, +11° 14′ 58.737″