Imaginary Picture of HATS-9 b
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Exoplanet Name : HATS-9 b
Alternate Name :
Radius (Rjup / Re): 1.0650 (Rjup) 11.9376 (Rearth)
Mass (Mjup / Me): 0.8390 (Mjup) 266.7500 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0305 (AU) 0.0305 (AU Est.)
Eccentricity : 0.1290
Orbital Period(Yrs) 0.0052
Orbital Period(Observed/Estimated) 1.92 (Days Obs.) 1.92 (Days Est.)
Star Radiation at Atmospheric Boundary: 2407801.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1758.1 (K)
Blackbody T 0.3(K) 1651.1 (K)
Blackbody T 0.7(K) 1335.9 (K)
Tidally Locked Blackbody T 0.1(K) 2090.8 (K)
Tidally Locked Blackbody T 0.3(K) 1963.4 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Radial Velocity
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HATS-9
Alternate Name :
Star Distance(LY) : 2028.7
Stellar Radius(Rsun) : 1.5 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 10.8 (GY)
Temperature : 5336 (K)
Spectral type : K0
Metalicity : 0.3
Absolute Magnitude: 4.3
Apparent Magnitude: 13.3
Right Ascension(RA) 290.8101
Declination (DEC) -20.1497
Hubble Space Telescope Guide Star Catalog (GSC) ID 06305-02502
Discovered by
Discovery Paper - Authors "R. Brahm, A. Jord_n, J.D. Hartman, G._. Bakos, D. Bayliss, K. Penev, G. Zhou, S. Ciceri, M. Rabus, N. Espinoza, L. Mancini, M. de Val-Borro, W. Bhatti, B. Sato, T.G. Tan, Z. Csubry, L. Buchhave, T. Henning, B. Schmidt, V. Suc, R.W. Noyes, I. Papp, J. L_z_r, P. S_ri"
Discovery Paper - Title HATS-9b and HATS-10b: Two Compact Hot Jupiters in Field 7 of the K2 Mission
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HATS-9+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HATS-9%20b/
HATS-9 b
HATS-9 b

  • HATS-9 b is an exoplanet orbiting the star HATS-9, located about 2028.7 light-years (622.0 pc) away from Solar System. Its discovery was publicly announced on 2015.
  • The host star HATS-9 has apparent magnitude of 13.3, with absolute magnitude of 4.3.
  • It is 1.0 times more massive and 1.5 times bigger compared with our Sun. The surface temperature is 5336 with its spectral types of K0
  • In this planetary system, the extrasolar planet HATS-9 b orbits around the star HATS-9 every 1.9 days with its orbital distance of 0.03 AU ( 4559743.1 km)
  • (Projected orbit of HATS-9 b around its host star HATS-9)


  • The Star HATS-9 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.925 AU ( 138414316.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.279 AU ( 191324757.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.949 AU ( 291536590.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.868 AU ( 429008864.7 km)
  • Radiation at Planetary Boundary of HATS-9 b : 2407801.53 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HATS-9)



  • Kopparapu Recent Venus for Star HATS-9 distance : 0.984 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HATS-9 distance : 1.246 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HATS-9 distance : 1.203 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HATS-9 distance : 1.320 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-9 distance : 2.230 AU
  • Kopparapu Outer Boundary for Early Mars for Star HATS-9 distance : 2.352 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HATS-9)



  • Original Kopparapu Recent Venus for Star HATS-9 distance : 0.977 AU
  • Original Kopparapu Runaway Greenhouse for Star HATS-9 distance : 1.282 AU
  • Original Kopparapu Moist Greenhouse for Star HATS-9 distance : 1.293 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-9 distance : 2.268 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HATS-9 distance : 2.358 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HATS-9)



    (Position in Stellar Map of star HATS-9 and its Exoplanet HATS-9 b)



    (Zoomed position in Stellar Map of star HATS-9 and its Exoplanet HATS-9 b (zoom level 3))