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1 References  





2 External links  














HD 99109 b






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Coordinates: Sky map11h24m17.358s, 01° 31 44.674
 

From Wikipedia, the free encyclopedia
 


HD 99109 b / Perwana
Discovery
Discovered byButler et al.[1]
Discovery site United States
Discovery date15 July 2006

Detection method

Radial velocity
Orbital characteristics

Semi-major axis

1.105 ± 0.065 AU (165,300,000 ± 9,700,000 km)
Eccentricity0.09 ± 0.16

Orbital period (sidereal)

439.3 ± 5.6 d

Time of periastron

2,411,310 ± 80

Argument of periastron

256
Semi-amplitude14.1 ± 2.2
StarHD 99109

HD 99109 b, formally named Perwana, is an extrasolar planet approximately 197 light-years away in the constellationofLeo. The planet was confirmed in 2006 to be orbiting the orange dwarf star HD 99109. The planet is about one half the mass of Jupiter, classifying the planet as a Jovian planet. The orbital eccentricity is about the same as Mars.[1]

The planet HD 99109 b is named Perwana. The name was selected in the NameExoWorlds campaign by Pakistan, during the 100th anniversary of the IAU. Perwana means mothinUrdu, alluding to the eternal love of an object circling a source of light (name of HD 99109 is Shama or lamp).[2][3]

A survey of the stability of hypothetical trojan planets of gas giants showed that Perwana might be capable of hosting habitable Earth-sized planets as trojans.[4]

References

[edit]
  1. ^ a b 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. S2CID 119067572.
  • ^ "Approved names". NameExoworlds. Retrieved 2020-01-02.
  • ^ "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.
  • ^ Schwarz, R.; Dvorak, R.; Süli, Á; Érdi, B. (2007-11-01). "Survey of the stability region of hypothetical habitable Trojan planets". Astronomy & Astrophysics. 474 (3): 1023–1029. doi:10.1051/0004-6361:20077994. ISSN 0004-6361.
  • [edit]


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  • Retrieved from "https://en.wikipedia.org/w/index.php?title=HD_99109_b&oldid=1184061495"

    Categories: 
    Leo (constellation)
    Exoplanets discovered in 2005
    Giant planets
    Giant planets in the habitable zone
    Exoplanets detected by radial velocity
    Exoplanets with proper names
    Exoplanet stubs
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    This page was last edited on 8 November 2023, at 02:58 (UTC).

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