Imaginary Picture of HATS-40 b
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Exoplanet Name : HATS-40 b
Alternate Name :
Radius (Rjup / Re): 1.5800 (Rjup) 17.7102 (Rearth)
Mass (Mjup / Me): 1.5900 (Mjup) 505.5214 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0500 (AU) 0.0500 (AU Est.)
Eccentricity : 0.3120
Orbital Period(Yrs) 0.0089
Orbital Period(Observed/Estimated) 3.26 (Days Obs.) 3.27 (Days Est.)
Star Radiation at Atmospheric Boundary: 4368507.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 2040.5 (K)
Blackbody T 0.3(K) 1916.2 (K)
Blackbody T 0.7(K) 1550.4 (K)
Tidally Locked Blackbody T 0.1(K) 2426.5 (K)
Tidally Locked Blackbody T 0.3(K) 2278.8 (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-40
Alternate Name :
Star Distance(LY) : 4667.3
Stellar Radius(Rsun) : 2.3 (Rsun Measured)
Stellar Mass(Msun) : 1.6 (Msun Measured) 1.6 (Msun Estimated)
Star Age : 2.1 (GY)
Temperature : 6460 (K)
Spectral type : F7
Metalicity : 0.0
Absolute Magnitude: 2.6
Apparent Magnitude: 13.4
Right Ascension(RA) 100.5708
Declination (DEC) -29.7769
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK
Open Exoplanet Database Link
HATS-40 b
HATS-40 b

  • HATS-40 b is an exoplanet orbiting the star HATS-40, located about 4667.3 light-years (1431.0 pc) away from Solar System. Its discovery was publicly announced on 2018.
  • The host star HATS-40 has apparent magnitude of 13.4, with absolute magnitude of 2.6.
  • It is 1.6 times more massive and 2.3 times bigger compared with our Sun. The surface temperature is 6460 with its spectral types of F7
  • In this planetary system, the extrasolar planet HATS-40 b orbits around the star HATS-40 every 3.3 days with its orbital distance of 0.05 AU ( 7475405.6 km)
  • (Projected orbit of HATS-40 b around its host star HATS-40)


  • The Star HATS-40 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 2.043 AU ( 305655058.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.824 AU ( 422495168.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 4.303 AU ( 643789138.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 6.333 AU ( 947363919.3 km)
  • Radiation at Planetary Boundary of HATS-40 b : 4368507.26 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HATS-40)



  • Kopparapu Recent Venus for Star HATS-40 distance : 2.032 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HATS-40 distance : 2.574 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HATS-40 distance : 2.485 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HATS-40 distance : 2.723 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-40 distance : 4.480 AU
  • Kopparapu Outer Boundary for Early Mars for Star HATS-40 distance : 4.725 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HATS-40)



  • Original Kopparapu Recent Venus for Star HATS-40 distance : 2.065 AU
  • Original Kopparapu Runaway Greenhouse for Star HATS-40 distance : 2.639 AU
  • Original Kopparapu Moist Greenhouse for Star HATS-40 distance : 2.732 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-40 distance : 4.561 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HATS-40 distance : 4.743 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HATS-40)



    (Position in Stellar Map of star HATS-40 and its Exoplanet HATS-40 b)



    (Zoomed position in Stellar Map of star HATS-40 and its Exoplanet HATS-40 b (zoom level 3))