HAT-P-12b
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HAT-P-12b is an extrasolar planet approximately 465 light years away from Earth, orbiting the 13th magnitude K-type star HAT-P-12, which is located in Canes Venatici constellation. It is a transiting hot Jupiter that was discovered by the HATNet Project on April 29, 2009.
HAT-P-12b is a H/He-dominated gas giant planet with a core mass of 11.3+2.6
−2.1 M⊕ and is moderately irradiated by its low-metallicity host star.[1] Therefore, HAT-P-12b is most likely an H/He-dominated planet with a core of perhaps ~10 M⊕, and a total metal fraction of ~15%. This makes HAT-P-12b the least massive H/He-dominated gas giant planet found to date; the previous record holder was Saturn.[2]
References
- ^ http://iopscience.iop.org/1538-3881/143/4/95/fulltext/
- ^ Hartman, J. D.; et al. (2009). "HAT-P-12b: A Low-density sub-Saturn mass planet transiting a metal-poor K dwarf". The Astrophysical Journal. 706 (1): 785–796. arXiv:0904.4704. Bibcode:2009ApJ...706..785H. doi:10.1088/0004-637X/706/1/785.
External links
Media related to HAT-P-12b at Wikimedia Commons
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