HD 155233 b

HD 155233 b is a confirmed exoplanet orbiting around the K Giant star HD 155233 every 885 days some 244.94 light-years away. It has a mass of 636 Earth masses or 2 Jupiter masses and is likely a gas giant similar of that to Jupiter just double the mass. It was discovered by Wittenmyer et al. on October 22nd 2015.[3][4][5]

HD 155233 b
Discovery
Discovered byWittenmyer et al.
Discovery dateOctober 19, 2015
Radial velocity
Orbital characteristics
2.07 ± 0.10 AU (310,000,000 ± 15,000,000 km)[1]
Eccentricity0.04±0.04[2]
818.8±12.1 d[2]
StarHD 155233
Physical characteristics
Mass2.6±0.3 MJ[2]

    Planetary orbit and mass were refined in 2016.[2]

    References
    1. "HD 155233 b CONFIRMED PLANET OVERVIEW PAGE". NASA. Retrieved 2015-10-22.
    2. Jones, M. I.; Jenkins, J. S.; Brahm, R.; Wittenmyer, R. A.; Olivares e., F.; Melo, C. H. F.; Rojo, P.; Jordán, A.; Drass, H.; Butler, R. P.; Wang, L. (2016), "Four new planets around giant stars and the mass-metallicity correlation of planet-hosting stars", Astronomy & Astrophysics, 590: A38, arXiv:1603.03738, Bibcode:2016A&A...590A..38J, doi:10.1051/0004-6361/201628067, S2CID 45730401
    3. NASA Exoplanet Archive. News ticker slide one.
    4. "HD 155233". Universe Guide. 25 January 2015. Retrieved 2019-12-26.
    5. Wittenmyer, R. A.; Butler, R. P.; Wang, L.; Bergmann, C.; Salter, G. S.; Tinney, C. G.; Johnson, J. A. (2015), "The Pan-Pacific Planet Search III: Five companions orbiting giant stars", Monthly Notices of the Royal Astronomical Society, 455 (2): 1398–1405, arXiv:1510.04343, doi:10.1093/mnras/stv2396
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