Imaginary Picture of TOI-1201 b

Display orbital revolution of TOI-1201 b around the hoststar TOI-1201
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Exoplanet Name : TOI-1201 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.2155 (Rjup) 2.4150 (Rearth)
Mass (Mjup / Me): 0.0198 (Mjup) 6.2825 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0287 (AU) 0.0287 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0068
Orbital Period(Observed/Estimated) 2.49 (Days Obs.) 2.48 (Days Est.)
Surface Gravity (G Earth) 1.0772
Star Radiation at Atmospheric Boundary: 56090.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 686.9 (K)
Blackbody T 0.3(K) 645.0 (K)
Blackbody T 0.7(K) 521.9 (K)
Tidally Locked Blackbody T 0.1(K) 816.8 (K)
Tidally Locked Blackbody T 0.3(K) 767.1 (K)
Size Class: sub-Neptune-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-1201
Alternate Name :
Star Distance(LY) : 122.8
Stellar Radius(Rsun) : 0.5 (Rsun Measured)
Stellar Mass(Msun) : 0.5 (Msun Measured) 0.5 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3476 (K)
Spectral type : M2V
UV portion[%]: 0.3
Visible portion[%]: 13.9
IR portion[%]: 85.8
Metalicity : 0.1
Absolute Magnitude: 19.1
Apparent Magnitude: 22.0
Right Ascension(RA) 42.2458
Declination (DEC) -14.5378
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=TOI-1201&submit=SIMBAD+search
Open Exoplanet Database Link
TOI-1201 b
TOI-1201 b

  • TOI-1201 b is an exoplanet orbiting the star TOI-1201, located about 122.8 light-years (37.6 pc) away from Solar System. Its discovery was publicly announced on 2021.
  • The host star TOI-1201 has apparent magnitude of 22.0, with absolute magnitude of 19.1.
  • It is 0.5 times more massive and 0.5 times bigger compared with our Sun. The surface temperature is 3476 with its spectral types of M2V
  • In this planetary system, the extrasolar planet TOI-1201 b orbits around the star TOI-1201 every 2.5 days with its orbital distance of 0.03 AU ( 4293458.9 km)
  • (Projected orbit of TOI-1201 b around its host star TOI-1201)


  • The Star TOI-1201 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.133 AU ( 19892133.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.184 AU ( 27496126.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.280 AU ( 41898012.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.412 AU ( 61654760.2 km)
  • Radiation at Planetary Boundary of TOI-1201 b : 56090.27 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-1201)



  • Kopparapu Recent Venus for Star TOI-1201 distance : 0.150 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-1201 distance : 0.190 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-1201 distance : 0.184 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-1201 distance : 0.202 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1201 distance : 0.370 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-1201 distance : 0.391 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-1201)



  • Original Kopparapu Recent Venus for Star TOI-1201 distance : 0.149 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-1201 distance : 0.197 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-1201 distance : 0.197 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1201 distance : 0.376 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-1201 distance : 0.391 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-1201)



    (Position in Stellar Map of star TOI-1201 and its Exoplanet TOI-1201 b)



    (Zoomed position in Stellar Map of star TOI-1201 and its Exoplanet TOI-1201 b (zoom level 3))

    (Synthetic Spectrum of star TOI-1201*)
    *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