Imaginary Picture of HAT-P-70 b

Display orbital revolution of HAT-P-70 b around the hoststar HAT-P-70
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Exoplanet Name : HAT-P-70 b
Alternate Name : TOI 624.01
Status : Confirmed
Radius (Rjup / Re): 1.8700 (Rjup) 20.9608 (Rearth)
Mass (Mjup / Me): 6.7800 (Mjup) 2155.6196 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0474 (AU) 0.0474 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0075
Orbital Period(Observed/Estimated) 2.74 (Days Obs.) 2.74 (Days Est.)
Surface Gravity (G Earth) 4.9063
Star Radiation at Atmospheric Boundary: 9610581.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 2485.0 (K)
Blackbody T 0.3(K) 2333.7 (K)
Blackbody T 0.7(K) 1888.2 (K)
Tidally Locked Blackbody T 0.1(K) 2955.2 (K)
Tidally Locked Blackbody T 0.3(K) 2775.2 (K)
Size Class: Super-Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HAT-P-70
Alternate Name :
Star Distance(LY) : 1073.1
Stellar Radius(Rsun) : 1.9 (Rsun Measured)
Stellar Mass(Msun) : 1.9 (Msun Measured) 1.9 (Msun Estimated)
Star Age : 0.6 (GY)
Temperature : 8450 (K)
Spectral type : A4
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : -0.1
Absolute Magnitude: 1.9
Apparent Magnitude: 9.5
Right Ascension(RA) 74.5523
Declination (DEC) 9.9981
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HAT-P-70+&submit=SIMBAD+search
Open Exoplanet Database Link
HAT-P-70 b
HAT-P-70 b

  • HAT-P-70 b is an exoplanet orbiting the star HAT-P-70, located about 1073.1 light-years (329.0 pc) away from Solar System. Its discovery was publicly announced on 2019.
  • The host star HAT-P-70 has apparent magnitude of 9.5, with absolute magnitude of 1.9.
  • It is 1.9 times more massive and 1.9 times bigger compared with our Sun. The surface temperature is 8450 with its spectral types of A4
  • In this planetary system, the extrasolar planet HAT-P-70 b orbits around the star HAT-P-70 every 2.7 days with its orbital distance of 0.05 AU ( 7089443.1 km)
  • (Projected orbit of HAT-P-70 b around its host star HAT-P-70)


  • The Star HAT-P-70 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 2.874 AU ( 429949293.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 3.973 AU ( 594302283.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 6.053 AU ( 905585161.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 8.908 AU ( 1332608235.5 km)
  • Radiation at Planetary Boundary of HAT-P-70 b : 9610581.11 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HAT-P-70)



  • Kopparapu Recent Venus for Star HAT-P-70 distance : 2.729 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HAT-P-70 distance : 3.457 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HAT-P-70 distance : 3.338 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HAT-P-70 distance : 3.651 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HAT-P-70 distance : 5.966 AU
  • Kopparapu Outer Boundary for Early Mars for Star HAT-P-70 distance : 6.291 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HAT-P-70)



  • Original Kopparapu Recent Venus for Star HAT-P-70 distance : 2.827 AU
  • Original Kopparapu Runaway Greenhouse for Star HAT-P-70 distance : 3.523 AU
  • Original Kopparapu Moist Greenhouse for Star HAT-P-70 distance : 3.741 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HAT-P-70 distance : 6.068 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HAT-P-70 distance : 6.310 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HAT-P-70)



    (Position in Stellar Map of star HAT-P-70 and its Exoplanet HAT-P-70 b)



    (Zoomed position in Stellar Map of star HAT-P-70 and its Exoplanet HAT-P-70 b (zoom level 3))

    (Synthetic Spectrum of star HAT-P-70*)
    *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