Imaginary Picture of TOI-5238 b

Display orbital revolution of TOI-5238 b around the hoststar TOI-5238
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Exoplanet Name : TOI-5238 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.4647 (Rjup) 5.2090 (Rearth)
Mass (Mjup / Me): 0.0984 (Mjup) 31.2785 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0562 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0133
Orbital Period(Observed/Estimated) 4.87 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.1527
Star Radiation at Atmospheric Boundary: 48110.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 661.0 (K)
Blackbody T 0.3(K) 620.7 (K)
Blackbody T 0.7(K) 502.3 (K)
Tidally Locked Blackbody T 0.1(K) 786.1 (K)
Tidally Locked Blackbody T 0.3(K) 738.2 (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-5238
Alternate Name :
Star Distance(LY) : 0.0
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3300 (K)
Spectral type : M9
UV portion[%]: 0.2
Visible portion[%]: 11.2
IR portion[%]: 88.6
Metalicity : 0.0
Absolute Magnitude: 25.0
Apparent Magnitude: 22.0
Right Ascension(RA) 223.3583
Declination (DEC) 60.8594
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-5238 b
TOI-5238 b

  • TOI-5238 b is an exoplanet orbiting the star TOI-5238. Its discovery was publicly announced on 2022.
  • The host star TOI-5238 has apparent magnitude of 22.0, with absolute magnitude of 25.0.
  • It is 1.0 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 3300 with its spectral types of M9
  • In this planetary system, the extrasolar planet TOI-5238 b orbits around the star TOI-5238 every 4.9 days with its orbital distance of 0.06 AU ( 8414215.1 km)
  • (Projected orbit of TOI-5238 b around its host star TOI-5238)


  • The Star TOI-5238 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.241 AU ( 36104524.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.334 AU ( 49905887.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.508 AU ( 76045528.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.748 AU ( 111904326.8 km)
  • Radiation at Planetary Boundary of TOI-5238 b : 48110.01 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-5238)



  • Kopparapu Recent Venus for Star TOI-5238 distance : 0.273 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-5238 distance : 0.346 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-5238 distance : 0.334 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-5238 distance : 0.367 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-5238 distance : 0.680 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-5238 distance : 0.717 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-5238)



  • Original Kopparapu Recent Venus for Star TOI-5238 distance : 0.272 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-5238 distance : 0.358 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-5238 distance : 0.359 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-5238 distance : 0.690 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-5238 distance : 0.718 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-5238)



    (Position in Stellar Map of star TOI-5238 and its Exoplanet TOI-5238 b)



    (Zoomed position in Stellar Map of star TOI-5238 and its Exoplanet TOI-5238 b (zoom level 3))

    (Synthetic Spectrum of star TOI-5238*)
    *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