Imaginary Picture of HATS-9 b

Display orbital revolution of HATS-9 b around the hoststar HATS-9
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Exoplanet Name : HATS-9 b
Alternate Name : "2MASS J19231442-2009587 b, EPIC 217671466 b, EPIC 217671466.01, GSC 6305-02502 b, K2-142 b, WISE J192314.43-200958.9 b"
Status : Confirmed
Radius (Rjup / Re): 1.2360 (Rjup) 13.8543 (Rearth)
Mass (Mjup / Me): 0.8390 (Mjup) 266.7500 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0312 (AU) 0.0312 (AU Est.)
Eccentricity : 0.1290
Orbital Period(Yrs) 0.0052
Orbital Period(Observed/Estimated) 1.92 (Days Obs.) 1.92 (Days Est.)
Surface Gravity (G Earth) 1.3897
Star Radiation at Atmospheric Boundary: 3012913.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1859.5 (K)
Blackbody T 0.3(K) 1746.2 (K)
Blackbody T 0.7(K) 1412.9 (K)
Tidally Locked Blackbody T 0.1(K) 2211.3 (K)
Tidally Locked Blackbody T 0.3(K) 2076.6 (K)
Size Class: Super-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 : "2MASS J19231442-2009587, EPIC 217671466, GSC 6305-02502, K2-142, WISE J192314.43-200958.9"
Star Distance(LY) : 2134.2
Stellar Radius(Rsun) : 1.6 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 10.8 (GY)
Temperature : 5599 (K)
Spectral type : G6
UV portion[%]: 7.3
Visible portion[%]: 43.9
IR portion[%]: 48.9
Metalicity : 0.4
Absolute Magnitude: 4.2
Apparent Magnitude: 13.3
Right Ascension(RA) 290.8101
Declination (DEC) -20.1663
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 2134.2 light-years (654.4 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 4.2.
  • It is 1.1 times more massive and 1.6 times bigger compared with our Sun. The surface temperature is 5599 with its spectral types of G6
  • 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 ( 4667453.6 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 ) : 1.059 AU ( 158490649.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.464 AU ( 219075496.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.231 AU ( 333822575.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.284 AU ( 491234543.5 km)
  • Radiation at Planetary Boundary of HATS-9 b : 3012913.68 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 : 1.110 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HATS-9 distance : 1.405 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HATS-9 distance : 1.357 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HATS-9 distance : 1.488 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-9 distance : 2.494 AU
  • Kopparapu Outer Boundary for Early Mars for Star HATS-9 distance : 2.631 AU

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



  • Original Kopparapu Recent Venus for Star HATS-9 distance : 1.107 AU
  • Original Kopparapu Runaway Greenhouse for Star HATS-9 distance : 1.445 AU
  • Original Kopparapu Moist Greenhouse for Star HATS-9 distance : 1.465 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-9 distance : 2.538 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HATS-9 distance : 2.639 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))

    (Synthetic Spectrum of star HATS-9*)
    *Yamashiki YA et al. 2019 ApJ 881 114
    MUSCLES Paper I - France et al. 2016 ApJ 820 89
    MUSCLES Paper II- Youngblood et al. 2016 ApJ 824 101
    MUSCLES Paper III- Loyd et al. 2016 ApJ 824 102