Imaginary Picture of TOI-2068 b

Display orbital revolution of TOI-2068 b around the hoststar TOI-2068
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Exoplanet Name : TOI-2068 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.1624 (Rjup) 1.8203 (Rearth)
Mass (Mjup / Me): 0.0138 (Mjup) 4.3875 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0632 (AU) 0.0632 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0213
Orbital Period(Observed/Estimated) 7.77 (Days Obs.) 7.76 (Days Est.)
Surface Gravity (G Earth) 1.3241
Star Radiation at Atmospheric Boundary: 16648.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 507.0 (K)
Blackbody T 0.3(K) 476.1 (K)
Blackbody T 0.7(K) 385.2 (K)
Tidally Locked Blackbody T 0.1(K) 602.9 (K)
Tidally Locked Blackbody T 0.3(K) 566.2 (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-2068
Alternate Name :
Star Distance(LY) : 172.6
Stellar Radius(Rsun) : 0.5 (Rsun Measured)
Stellar Mass(Msun) : 0.6 (Msun Measured) 0.6 (Msun Estimated)
Star Age : 7.0 (GY)
Temperature : 3710 (K)
Spectral type : M2
UV portion[%]: 0.4
Visible portion[%]: 18.4
IR portion[%]: 81.2
Metalicity : 0.3
Absolute Magnitude: 9.4
Apparent Magnitude: 13.0
Right Ascension(RA) 186.2750
Declination (DEC) 60.4183
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-2068 b
TOI-2068 b

  • TOI-2068 b is an exoplanet orbiting the star TOI-2068, located about 172.6 light-years (52.9 pc) away from Solar System. Its discovery was publicly announced on 2023.
  • The host star TOI-2068 has apparent magnitude of 13.0, with absolute magnitude of 9.4.
  • It is 0.6 times more massive and 0.5 times bigger compared with our Sun. The surface temperature is 3710 with its spectral types of M2
  • In this planetary system, the extrasolar planet TOI-2068 b orbits around the star TOI-2068 every 7.8 days with its orbital distance of 0.06 AU ( 9454585.4 km)
  • (Projected orbit of TOI-2068 b around its host star TOI-2068)


  • The Star TOI-2068 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.160 AU ( 23864905.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.221 AU ( 32987535.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.336 AU ( 50265704.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.494 AU ( 73968185.7 km)
  • Radiation at Planetary Boundary of TOI-2068 b : 16648.45 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-2068)



  • Kopparapu Recent Venus for Star TOI-2068 distance : 0.180 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-2068 distance : 0.227 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-2068 distance : 0.220 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-2068 distance : 0.242 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-2068 distance : 0.438 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-2068 distance : 0.462 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-2068)



  • Original Kopparapu Recent Venus for Star TOI-2068 distance : 0.178 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-2068 distance : 0.235 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-2068 distance : 0.235 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-2068 distance : 0.445 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-2068 distance : 0.463 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-2068)



    (Position in Stellar Map of star TOI-2068 and its Exoplanet TOI-2068 b)



    (Zoomed position in Stellar Map of star TOI-2068 and its Exoplanet TOI-2068 b (zoom level 3))

    (Synthetic Spectrum of star TOI-2068*)
    *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