Imaginary Picture of TOI-813 b

Display orbital revolution of TOI-813 b around the hoststar TOI-813
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Exoplanet Name : TOI-813 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.5986 (Rjup) 6.7097 (Rearth)
Mass (Mjup / Me): 0.2103 (Mjup) 66.8469 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.4230 (AU) 0.4230 (AU Est.)
Eccentricity : 0.0500
Orbital Period(Yrs) 0.2297
Orbital Period(Observed/Estimated) 83.89 (Days Obs.) 87.46 (Days Est.)
Surface Gravity (G Earth) 1.4848
Star Radiation at Atmospheric Boundary: 31404.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 594.1 (K)
Blackbody T 0.3(K) 558.0 (K)
Blackbody T 0.7(K) 451.5 (K)
Tidally Locked Blackbody T 0.1(K) 706.6 (K)
Tidally Locked Blackbody T 0.3(K) 663.5 (K)
Size Class: sub-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 : TOI-813
Alternate Name :
Star Distance(LY) : 864.8
Stellar Radius(Rsun) : 1.9 (Rsun Measured)
Stellar Mass(Msun) : 1.3 (Msun Measured) 1.4 (Msun Estimated)
Star Age : 3.7 (GY)
Temperature : 5907 (K)
Spectral type : G0IV
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.1
Absolute Magnitude: 3.2
Apparent Magnitude: 10.3
Right Ascension(RA) 72.6958
Declination (DEC) -60.9056
Hubble Space Telescope Guide Star Catalog (GSC) ID 08876-01059
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=TOI-813&submit=SIMBAD+search
Open Exoplanet Database Link
TOI-813 b
TOI-813 b

  • TOI-813 b is an exoplanet orbiting the star TOI-813, located about 864.8 light-years (265.2 pc) away from Solar System. Its discovery was publicly announced on 2019.
  • The host star TOI-813 has apparent magnitude of 10.3, with absolute magnitude of 3.2.
  • It is 1.3 times more massive and 1.9 times bigger compared with our Sun. The surface temperature is 5907 with its spectral types of G0IV
  • In this planetary system, the extrasolar planet TOI-813 b orbits around the star TOI-813 every 83.9 days with its orbital distance of 0.42 AU ( 63279899.3 km)
  • (Projected orbit of TOI-813 b around its host star TOI-813)


  • The Star TOI-813 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.466 AU ( 219378359.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.027 AU ( 303238223.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.089 AU ( 462067945.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.545 AU ( 679953223.4 km)
  • Radiation at Planetary Boundary of TOI-813 b : 31404.76 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-813)



  • Kopparapu Recent Venus for Star TOI-813 distance : 1.508 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-813 distance : 1.910 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-813 distance : 1.844 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-813 distance : 2.022 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-813 distance : 3.361 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-813 distance : 3.545 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-813)



  • Original Kopparapu Recent Venus for Star TOI-813 distance : 1.514 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-813 distance : 1.962 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-813 distance : 2.003 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-813 distance : 3.421 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-813 distance : 3.557 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-813)



    (Position in Stellar Map of star TOI-813 and its Exoplanet TOI-813 b)



    (Zoomed position in Stellar Map of star TOI-813 and its Exoplanet TOI-813 b (zoom level 3))

    (Synthetic Spectrum of star TOI-813*)
    *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