HATS-11b explained

Extrasolarplanet:yes
HATS-11b
Apsis:astron
Discoverer:HATNet Project
Discovered:2016
Discovery Method:primary transit
Semimajor:0.04614 AU
Eccentricity:0.34
Period:~3.6
Inclination:88.31 degrees
Mean Radius:1.51Rj
Mass:0.85Mj
Single 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 as similar to Jupiter and orbits a low metallicity star which is about 2955ly distant. This planet has an orbital period of around 3.6 Earth days and its temperature has been calculated to be 1637K. HATS-11b has a mass of 0.85 and a radius of 1.49. 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 1 and has a solar radius of 1.44. 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 6060K. 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

Notes and References

  1. 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. . HATS-11b AND HATS-12b: Two Transiting Hot Jupiters Orbiting Subsolar Metallicity Stars Selected for the K2 Campaign 7 . The Astronomical Journal . 21 September 2016 . 152 . 4 . 88 . 10.3847/0004-6256/152/4/88 . 1603.02894 . 2016AJ....152...88R . 44027206 . 1885/152012 . free . free .
  2. Stuhr . Andrew M. . Feigelson . Eric D. . Caceres . Gabriel A. . Hartman . Joel D. . Autoregressive Planet Search: Feasibility Study for Irregular Time Series . The Astronomical Journal . 15 July 2019 . 158 . 2 . 59 . 10.3847/1538-3881/ab26b3 . 1905.03766 . 2019AJ....158...59S . 148574209 . free .
  3. https://exoplanet.eu/catalog/hats_11_b--2595/ The Extrasolar Planet Encyclopedia
  4. http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=HATS-11 simbad.u-strasbg.fr/simbad/HATS-11