Imaginary Picture of TOI-237 b

Display orbital revolution of TOI-237 b around the hoststar TOI-237
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Exoplanet Name : TOI-237 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.1285 (Rjup) 1.4404 (Rearth)
Mass (Mjup / Me): 0.0090 (Mjup) 2.8614 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0341 (AU) 0.0341 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0149
Orbital Period(Observed/Estimated) 5.44 (Days Obs.) 5.44 (Days Est.)
Surface Gravity (G Earth) 1.3793
Star Radiation at Atmospheric Boundary: 4997.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 375.3 (K)
Blackbody T 0.3(K) 352.4 (K)
Blackbody T 0.7(K) 285.1 (K)
Tidally Locked Blackbody T 0.1(K) 446.3 (K)
Tidally Locked Blackbody T 0.3(K) 419.1 (K)
Size Class: super-Earth-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Theoretical
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : TOI-237
Alternate Name :
Star Distance(LY) : 124.3
Stellar Radius(Rsun) : 0.2 (Rsun Measured)
Stellar Mass(Msun) : 0.2 (Msun Measured) 0.2 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3212 (K)
Spectral type : M6
UV portion[%]: 0.3
Visible portion[%]: 7.6
IR portion[%]: 92.0
Metalicity : 0.0
Absolute Magnitude: 13.5
Apparent Magnitude: 16.4
Right Ascension(RA) 353.2417
Declination (DEC) -29.4150
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=TOI-237&submit=SIMBAD+search
Open Exoplanet Database Link
TOI-237 b
TOI-237 b

  • TOI-237 b is an exoplanet orbiting the star TOI-237, located about 124.3 light-years (38.1 pc) away from Solar System. Its discovery was publicly announced on 2020.
  • The host star TOI-237 has apparent magnitude of 16.4, with absolute magnitude of 13.5.
  • It is 0.2 times more massive and 0.2 times bigger compared with our Sun. The surface temperature is 3212 with its spectral types of M6
  • In this planetary system, the extrasolar planet TOI-237 b orbits around the star TOI-237 every 5.4 days with its orbital distance of 0.03 AU ( 5101287.4 km)
  • (Projected orbit of TOI-237 b around its host star TOI-237)


  • The Star TOI-237 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.047 AU ( 7054912.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.065 AU ( 9751733.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.099 AU ( 14859483.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.146 AU ( 21866380.1 km)
  • Radiation at Planetary Boundary of TOI-237 b : 4997.62 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-237)



  • Kopparapu Recent Venus for Star TOI-237 distance : 0.053 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-237 distance : 0.068 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-237 distance : 0.065 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-237 distance : 0.072 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-237 distance : 0.133 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-237 distance : 0.141 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-237)



  • Original Kopparapu Recent Venus for Star TOI-237 distance : 0.053 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-237 distance : 0.070 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-237 distance : 0.070 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-237 distance : 0.136 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-237 distance : 0.141 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-237)



    (Position in Stellar Map of star TOI-237 and its Exoplanet TOI-237 b)



    (Zoomed position in Stellar Map of star TOI-237 and its Exoplanet TOI-237 b (zoom level 3))

    (Synthetic Spectrum of star TOI-237*)
    *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