Imaginary Picture of HATS-68 b

Display orbital revolution of HATS-68 b around the hoststar HATS-68
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Exoplanet Name : HATS-68 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.2321 (Rjup) 13.8106 (Rearth)
Mass (Mjup / Me): 1.2900 (Mjup) 410.1400 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0507 (AU) 0.0507 (AU Est.)
Eccentricity : 0.0360
Orbital Period(Yrs) 0.0098
Orbital Period(Observed/Estimated) 3.59 (Days Obs.) 3.61 (Days Est.)
Surface Gravity (G Earth) 2.1503
Star Radiation at Atmospheric Boundary: 2096266.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1698.3 (K)
Blackbody T 0.3(K) 1594.8 (K)
Blackbody T 0.7(K) 1290.4 (K)
Tidally Locked Blackbody T 0.1(K) 2019.6 (K)
Tidally Locked Blackbody T 0.3(K) 1896.6 (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-68
Alternate Name :
Star Distance(LY) : 2018.9
Stellar Radius(Rsun) : 1.8 (Rsun Measured)
Stellar Mass(Msun) : 1.3 (Msun Measured) 1.4 (Msun Estimated)
Star Age : 3.1 (GY)
Temperature : 6122 (K)
Spectral type : G0
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.2
Absolute Magnitude: 3.2
Apparent Magnitude: 12.2
Right Ascension(RA) 15.0042
Declination (DEC) -58.9047
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HATS-68&submit=SIMBAD+search
Open Exoplanet Database Link
HATS-68 b
HATS-68 b

  • HATS-68 b is an exoplanet orbiting the star HATS-68, located about 2018.9 light-years (619.0 pc) away from Solar System. Its discovery was publicly announced on 2018.
  • The host star HATS-68 has apparent magnitude of 12.2, with absolute magnitude of 3.2.
  • It is 1.3 times more massive and 1.8 times bigger compared with our Sun. The surface temperature is 6122 with its spectral types of G0
  • In this planetary system, the extrasolar planet HATS-68 b orbits around the star HATS-68 every 3.6 days with its orbital distance of 0.05 AU ( 7586108.0 km)
  • (Projected orbit of HATS-68 b around its host star HATS-68)


  • The Star HATS-68 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.436 AU ( 214868422.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.985 AU ( 297004312.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.025 AU ( 452568844.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.452 AU ( 665974880.7 km)
  • Radiation at Planetary Boundary of HATS-68 b : 2096266.80 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HATS-68)



  • Kopparapu Recent Venus for Star HATS-68 distance : 1.458 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HATS-68 distance : 1.846 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HATS-68 distance : 1.783 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HATS-68 distance : 1.954 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-68 distance : 3.234 AU
  • Kopparapu Outer Boundary for Early Mars for Star HATS-68 distance : 3.411 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HATS-68)



  • Original Kopparapu Recent Venus for Star HATS-68 distance : 1.470 AU
  • Original Kopparapu Runaway Greenhouse for Star HATS-68 distance : 1.895 AU
  • Original Kopparapu Moist Greenhouse for Star HATS-68 distance : 1.945 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-68 distance : 3.292 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HATS-68 distance : 3.423 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HATS-68)



    (Position in Stellar Map of star HATS-68 and its Exoplanet HATS-68 b)



    (Zoomed position in Stellar Map of star HATS-68 and its Exoplanet HATS-68 b (zoom level 3))

    (Synthetic Spectrum of star HATS-68*)
    *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