Imaginary Picture of TOI-2266 b

Display orbital revolution of TOI-2266 b around the hoststar TOI-2266
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Exoplanet Name : TOI-2266 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.1374 (Rjup) 1.5401 (Rearth)
Mass (Mjup / Me): 0.0124 (Mjup) 3.9422 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0200 (AU) 0.0200 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0064
Orbital Period(Observed/Estimated) 2.33 (Days Obs.) 2.15 (Days Est.)
Surface Gravity (G Earth) 1.6620
Star Radiation at Atmospheric Boundary: 18516.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 520.6 (K)
Blackbody T 0.3(K) 488.9 (K)
Blackbody T 0.7(K) 395.6 (K)
Tidally Locked Blackbody T 0.1(K) 619.1 (K)
Tidally Locked Blackbody T 0.3(K) 581.4 (K)
Size Class: super-Earth-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-2266
Alternate Name :
Star Distance(LY) : 168.3
Stellar Radius(Rsun) : 0.2 (Rsun Measured)
Stellar Mass(Msun) : 0.2 (Msun Measured) 0.2 (Msun Estimated)
Star Age : 0.3 (GY)
Temperature : 3200 (K)
Spectral type : M5.0
UV portion[%]: 0.1
Visible portion[%]: 8.1
IR portion[%]: 91.8
Metalicity : 0.0
Absolute Magnitude: 12.9
Apparent Magnitude: 16.5
Right Ascension(RA) 245.2792
Declination (DEC) 31.5769
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-2266 b
TOI-2266 b

  • TOI-2266 b is an exoplanet orbiting the star TOI-2266, located about 168.3 light-years (51.6 pc) away from Solar System. Its discovery was publicly announced on 2024.
  • The host star TOI-2266 has apparent magnitude of 16.5, with absolute magnitude of 12.9.
  • It is 0.2 times more massive and 0.2 times bigger compared with our Sun. The surface temperature is 3200 with its spectral types of M5.0
  • In this planetary system, the extrasolar planet TOI-2266 b orbits around the star TOI-2266 every 2.3 days with its orbital distance of 0.02 AU ( 2991957.4 km)
  • (Projected orbit of TOI-2266 b around its host star TOI-2266)


  • The Star TOI-2266 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.053 AU ( 7964698.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.074 AU ( 11009294.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.112 AU ( 16775727.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.165 AU ( 24686218.2 km)
  • Radiation at Planetary Boundary of TOI-2266 b : 18516.85 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-2266)



  • Kopparapu Recent Venus for Star TOI-2266 distance : 0.060 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-2266 distance : 0.076 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-2266 distance : 0.074 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-2266 distance : 0.081 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-2266 distance : 0.151 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-2266 distance : 0.159 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-2266)



  • Original Kopparapu Recent Venus for Star TOI-2266 distance : 0.060 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-2266 distance : 0.079 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-2266 distance : 0.079 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-2266 distance : 0.153 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-2266 distance : 0.159 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-2266)



    (Position in Stellar Map of star TOI-2266 and its Exoplanet TOI-2266 b)



    (Zoomed position in Stellar Map of star TOI-2266 and its Exoplanet TOI-2266 b (zoom level 3))

    (Synthetic Spectrum of star TOI-2266*)
    *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