23 Librae b

23 Librae b (23 Lib b) also known as HD 134987 b is an extrasolar Jovian planet discovered in November 1999 orbiting the star 23 Librae. It orbits in its star's habitable zone.[1][2][3]

23 Librae b
23 Librae b (min mass ~1.59 MJ) as seen with Celestia
Discovery[1][2]
Discovered byCalifornia and
Carnegie Planet Search
Discovery siteW. M. Keck Observatory
Discovery dateNovember 1, 1999
Doppler spectroscopy
Orbital characteristics
0.81 ± 0.02 AU (121,200,000 ± 3,000,000 km)
Eccentricity0.233 ± 0.002
258.19 ± 0.07 d
0.7069 y
2,450,331.7 ± 2.2
358.3 ± 3.7
Semi-amplitude49.52 ± 0.57

    As of 1999, the planet was known to have at least 1.5 times Jupiter's mass. The planet orbits 23 Librae at an average distance of 0.82 AU, which is between that of Venus and the Earth in the Solar System.[4]

    References

    1. "Astronomers discover six new planets orbiting nearby stars" (Press release). Kamuela, Hawaii: W. M. Keck Observatory. November 1, 1999. Retrieved December 19, 2017.
    2. Vogt, Steven S.; et al. (2000). "Six New Planets from the Keck Precision Velocity Survey". The Astrophysical Journal. 536 (2): 902–914. arXiv:astro-ph/9911506. Bibcode:2000ApJ...536..902V. doi:10.1086/308981.
    3. Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701.
    4. Jones, Hugh R. A.; et al. (2010). "A long-period planet orbiting a nearby Sun-like star". Monthly Notices of the Royal Astronomical Society. 403 (4): 1703–1713. arXiv:0912.2716. Bibcode:2010MNRAS.403.1703J. doi:10.1111/j.1365-2966.2009.16232.x.

    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.