Imaginary Picture of TOI-2158 b

Display orbital revolution of TOI-2158 b around the hoststar TOI-2158
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Exoplanet Name : TOI-2158 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9600 (Rjup) 10.7606 (Rearth)
Mass (Mjup / Me): 0.8200 (Mjup) 260.7092 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0740 (AU) 0.0740 (AU Est.)
Eccentricity : 0.0310
Orbital Period(Yrs) 0.0235
Orbital Period(Observed/Estimated) 8.60 (Days Obs.) 6.95 (Days Est.)
Surface Gravity (G Earth) 2.2515
Star Radiation at Atmospheric Boundary: 461137.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1163.1 (K)
Blackbody T 0.3(K) 1092.2 (K)
Blackbody T 0.7(K) 883.7 (K)
Tidally Locked Blackbody T 0.1(K) 1383.1 (K)
Tidally Locked Blackbody T 0.3(K) 1298.9 (K)
Size Class: 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 : TOI-2158
Alternate Name :
Star Distance(LY) : 652.3
Stellar Radius(Rsun) : 1.4 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 0.7 (Msun Estimated)
Star Age : 8.0 (GY)
Temperature : 5673 (K)
Spectral type : G5
UV portion[%]: 7.5
Visible portion[%]: 44.3
IR portion[%]: 48.2
Metalicity : 0.5
Absolute Magnitude: 15.5
Apparent Magnitude: 22.0
Right Ascension(RA) 276.8083
Declination (DEC) 20.5269
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
TOI-2158 b
TOI-2158 b

  • TOI-2158 b is an exoplanet orbiting the star TOI-2158, located about 652.3 light-years (200.0 pc) away from Solar System. Its discovery was publicly announced on 2022.
  • The host star TOI-2158 has apparent magnitude of 22.0, with absolute magnitude of 15.5.
  • It is 1.1 times more massive and 1.4 times bigger compared with our Sun. The surface temperature is 5673 with its spectral types of G5
  • In this planetary system, the extrasolar planet TOI-2158 b orbits around the star TOI-2158 every 8.6 days with its orbital distance of 0.07 AU ( 11070242.4 km)
  • (Projected orbit of TOI-2158 b around its host star TOI-2158)


  • The Star TOI-2158 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.983 AU ( 147062787.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.359 AU ( 203279203.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.071 AU ( 309752521.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.047 AU ( 455814404.1 km)
  • Radiation at Planetary Boundary of TOI-2158 b : 461137.81 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-2158)



  • Kopparapu Recent Venus for Star TOI-2158 distance : 1.025 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-2158 distance : 1.298 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-2158 distance : 1.254 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-2158 distance : 1.375 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-2158 distance : 2.299 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-2158 distance : 2.425 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-2158)



  • Original Kopparapu Recent Venus for Star TOI-2158 distance : 1.025 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-2158 distance : 1.335 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-2158 distance : 1.356 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-2158 distance : 2.340 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-2158 distance : 2.433 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-2158)



    (Position in Stellar Map of star TOI-2158 and its Exoplanet TOI-2158 b)



    (Zoomed position in Stellar Map of star TOI-2158 and its Exoplanet TOI-2158 b (zoom level 3))

    (Synthetic Spectrum of star TOI-2158*)
    *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