HD 99109 b

Last updated
HD 99109 b / Perwana
Discovery
Discovered by Butler et al. [1]
Discovery site Flag of the United States.svg  United States
Discovery date15 July 2006
Radial velocity
Orbital characteristics
1.105 ± 0.065 AU (165,300,000 ± 9,700,000 km)
Eccentricity 0.09 ± 0.16
439.3 ± 5.6 d
2,411,310 ± 80
256
Semi-amplitude 14.1 ± 2.2
Star HD 99109

    HD 99109 b, formally named Perwana, is an extrasolar planet approximately 197 light-years away in the constellation of Leo. 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 ( پروانہ ) means moth in Urdu, 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

    1. 1 2 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.
    2. ↑ "Approved names". NameExoworlds. Retrieved 2020-01-02.
    3. ↑ "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.
    4. ↑ 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.


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