HATS-11b

HATS-11bDiscovery

Discovered by| HATNet Project
Discovery date| 2016

Detection method

| primary transit
Orbital characteristics

Semi-major axis

| 0.04614 AU
Eccentricity| 0.34
Orbital period| ~3.6
Inclination| 88.31 degrees
Physical characteristics
Mean radius| 1.51Rj
Mass| 0.85Mj
Physics| 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.

## Contents

* 1 Discovery
* 2 Characteristics
* 3 Star
* 4 See also
* 5 References

## 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 as similar to Jupiter and orbits a low metallicity star which is about 2,955 light-years (906 parsecs) distant. This planet has an orbital period of around 3.6 Earth days and its temperature has been calculated to be 1,637 K (1,364 °C). HATS-11b has a mass of 0.85MJ and a radius of 1.49RJ. The planet's orbital eccentricity is less than 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], which is roughly one-thousandth the abundance of iron relative to the Sun.[1] The star has an effective temperature of around 6,060 K (5,790 °C). 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

* HATNet Project
* Lists of exoplanets
* Methods of detecting exoplanets

## References

1. ↑ 1.0 1.1 1.2 Rabus, M.; Jordán, A.; Hartman, J. D.; Bakos, G. Á.; Espinoza, N.; Brahm, R.; Penev, K.; Ciceri, S. et al. (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. Bibcode: 2016AJ....152...88R.
2. ↑ 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. doi:10.3847/1538-3881/ab26b3. Bibcode: 2019AJ....158...59S.
3. ↑ The Extrasolar Planet Encyclopedia catalog HATS-11b
4. ↑ simbad.u-strasbg.fr/simbad/HATS-11 Simbad data

* v
* t
* e

2016 in space

* « 2015

2017 »

Spacecraft launches|

* ExoMars Trace Gas Orbiter (Mars orbiter) / Schiaparelli EDM (Mars lander)
* Hitomi (X-ray observatory)
* OSIRIS-REx (mission to asteroid)

Selected NEOs|

* Asteroid close approaches
* 2013 TX68
* 252P/LINEAR
* 2016 EU85
* 469219 Kamoʻoalewa
* 2016 PQ
* P/2016 BA14

Planets|

| Extrasolar |

* HD 19467 b
* 2MASS J2126–8140
* BD+20 594b
* Pr0211 c
* TRAPPIST-1b
* TRAPPIST-1c
* TRAPPIST-1d
* KELT-9b
* Kepler-1229b
* Kepler-1520b
* Kepler-1638b
* Kepler-1647b
* Kepler-20g
* V830 Tauri b
* Qatar-3b
* Qatar-4b
* Qatar-5b
* K2-33b
* HIP 41378 b
* HIP 41378 c
* HIP 41378 d
* HIP 41378 e
* HIP 41378 f
* HD 131399 Ab
* HD 164922 c
* KELT-11b
* K2-72b
* K2-72c
* K2-72d
* K2-72e
* Proxima Centauri b
* 38 Virginis b
* TW Hydrae b
* OGLE-2007-BLG-349(AB)b
* Gliese 536 b

|

Solar|

* Planet Nine (hypothesized)

Rogue|

* 2MASS J1119–1137

Discoveries|

* BOSS Great Wall
* Crater 2
* GW150914 (first observation of gravitational waves, discovered in 2015)
* GW151226 (discovered in 2015)
* GN-z11
* GRB 160625B
* (471325) 2011 KT19
* Virgo I
* 1994 WR12 (recovered)

Comets|

* P/2016 BA14
* C/2016 R2 (PANSTARRS)

Space exploration|

* Juno (entered Jupiter orbit)
* Rosetta / Philae (end of mission to comet 67P)

* Category:2015 in space — Category:2016 in space — Category:2017 in space

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