astro.wikisort.org - Meteorite

Search / Calendar

Gliese 849 b is an extrasolar planet approximately 29 light years away in the constellation of Aquarius. It is the first long-period Jupiter-like planet discovered around a red dwarf, announced in August 2006 by the California and Carnegie Planet Search team using the radial velocity technique. The previously longest-period Jupiter-like planet around a red dwarf was Gliese 876 b. There are, however, two disproven longer period Jupiter-like planets around Lalande 21185. There are indications of a possible second companion. The planet's mass is less than that of Jupiter, though only the minimum mass is known. The distance of the planet is 2.35 AU and it takes 5.17 years (1890 days) to revolve in a circular orbit.[2]

Gliese 849 b
Discovery
Discovered byCalifornia and Carnegie Planet Search
Discovery siteW. M. Keck Observatory
 USA
Discovery dateAugust 2006
Detection method
radial velocity
Orbital characteristics
Semi-major axis
2.39±0.082 AU
Eccentricity0.038±0.019[1]
Orbital period (sidereal)
1924±15[1] d
Time of periastron
2453770±150[1]
Argument of periastron
66±28[1]
Semi-amplitude23.96±0.94[1]
StarGliese 849

    See also



    References


    1. Feng, Y. Katherina; et al. (2015). "The California Planet Survey IV: A Planet Orbiting the Giant Star HD 145934 and Updates to Seven Systems with Long-period Planets". The Astrophysical Journal. 800 (1). 22. arXiv:1501.00633. Bibcode:2015ApJ...800...22F. doi:10.1088/0004-637X/800/1/22.
    2. Butler, R. Paul; et al. (2006). "A Long-Period Jupiter-Mass Planet Orbiting the Nearby M Dwarf GJ 849". Publications of the Astronomical Society of the Pacific. 118 (850): 1685–1689. arXiv:astro-ph/0610179. Bibcode:2006PASP..118.1685B. doi:10.1086/510500.




    This extrasolar-planet-related article is a stub. You can help Wikipedia by expanding it.

    • v
    • t
    • e

    На других языках

    [de] Gliese 849 b

    Gliese 849 b (GJ 849 b) ist ein Exoplanet um den roten Zwerg Gliese 849.
    - [en] Gliese 849 b

    [es] Gliese 849 b

    Gliese 849 b, (abreviadoGj 849 b), también llamado HIP 109388 b, es un planeta extrasolar que orbita alrededor de la estrella enana roja Gliese 849. Está situado en la constelación de Acuario, a, aproximadamente, 28,61 años luz de distancia a la Tierra.


    Текст в блоке "Читать" взят с сайта "Википедия" и доступен по лицензии Creative Commons Attribution-ShareAlike; в отдельных случаях могут действовать дополнительные условия.

    Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.

    2019-2025
    WikiSort.org - проект по пересортировке и дополнению контента Википедии