HATS-11b
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| Discovery | |
|---|---|
| Discovered by | HATNet Project |
| Discovery date | 2016 |
| primary transit | |
| Orbital characteristics | |
| 0.04614 AU | |
| Eccentricity | 0.34 |
| ~3.6 | |
| Inclination | 88.31 degrees |
| Physical characteristics | |
Mean radius | 1.51Rj |
| Mass | 0.85Mj |
| Temperature | 1637K |
HATS-11b, also known as EPIC 216414930b, is a confirmed exoplanet, or exosolar planet, discovered in 2016 and has been described as similar to Jupiter.[1] It orbits the star HATS-11.
Discovery
HATS-11b was discovered in 2016, using the primary transit method, by the Hungarian Automated Telescope Network (HATNet) in the HATSouth survey, which aims to discover exoplanets using the transit method. Since 2009 (when the HATSouth project began), 61 exoplanets have been discovered, as of 10th Feb 2020. The mass of HATS-11b was found using the radial velocity method.
Characteristics
HATS-11b has been described to be similar to Jupiter and orbits a subsolar metallicity star which is about 2955 light years away (906 parsecs). HATS-11b has an orbital period of around 3.6 Earth days and its temperature has been calculated to be 1637 Kelvin (1363.85 Celsius). HATS-11b has a mass of 0.85MJ and a radius of 1.49RJ. The planet's orbital eccentricity is <0.34 which is an elliptical orbit.[1][2]
Star
HATS-11b orbits around the star HATS-11. HATS-11 has a solar mass of 1M☉ and has a solar radius of 1.44R☉. It's a type G0 star, of about medium heat. HATS-11 is very metal-poor, it has a metallicity of around -3.09 Fe/H, roughly one-thousandth the amount of metal than in the Sun.[1] The star has an effective temperature of around 6060 Kelvin (5786.85 Celsius). HATS-11 is roughly 7.7 billion years old and has an apparent magnitude of 14, which is not visible with the naked eye.[3][4]
See also
References
- ^ a b c Rabus, M.; Jordán, A.; Hartman, J. D.; Bakos, G. Á.; Espinoza, N.; Brahm, R.; Penev, K.; Ciceri, S.; Zhou, G.; Bayliss, D.; Mancini, L.; Bhatti, W.; de Val-Borro, M.; Csbury, Z.; Sato, B.; Tan, T.-G.; Henning, T.; Schmidt, B.; Bento, J.; Suc, V.; Noyes, R.; Lázár, J.; Papp, I.; Sári, P. (21 September 2016). "HATS-11b AND HATS-12b: Two Transiting Hot Jupiters Orbiting Subsolar Metallicity Stars Selected for the K2 Campaign 7". The Astronomical Journal. 152 (4): 88. doi:10.3847/0004-6256/152/4/88. S2CID 44027206.
- ^ Stuhr, Andrew M.; Feigelson, Eric D.; Caceres, Gabriel A.; Hartman, Joel D. (15 July 2019). "Autoregressive Planet Search: Feasibility Study for Irregular Time Series". The Astronomical Journal. 158 (2): 59. arXiv:1905.03766. doi:10.3847/1538-3881/ab26b3. S2CID 148574209.
- ^ The Extrasolar Planet Encyclopedia catalog HATS-11b
- ^ simbad.u-strasbg.fr/simbad/HATS-11 Simbad data
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