Imaginary Picture of TOI-2285 b

Display orbital revolution of TOI-2285 b around the hoststar TOI-2285
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Exoplanet Name : TOI-2285 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.1552 (Rjup) 1.7396 (Rearth)
Mass (Mjup / Me): 0.0614 (Mjup) 19.5214 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1363 (AU) 0.1363 (AU Est.)
Eccentricity : 0.3000
Orbital Period(Yrs) 0.0747
Orbital Period(Observed/Estimated) 27.27 (Days Obs.) 27.28 (Days Est.)
Surface Gravity (G Earth) 6.4505
Star Radiation at Atmospheric Boundary: 2110.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 302.5 (K)
Blackbody T 0.3(K) 284.1 (K)
Blackbody T 0.7(K) 229.9 (K)
Tidally Locked Blackbody T 0.1(K) 359.8 (K)
Tidally Locked Blackbody T 0.3(K) 337.9 (K)
Size Class: super-Earth-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Radial Velocity
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Habitable
Habitability by Kopparapu: Not habitable
Star Name : TOI-2285
Alternate Name :
Star Distance(LY) : 138.3
Stellar Radius(Rsun) : 0.5 (Rsun Measured)
Stellar Mass(Msun) : 0.5 (Msun Measured) 0.5 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3491 (K)
Spectral type : M4
UV portion[%]: 0.3
Visible portion[%]: 14.3
IR portion[%]: 85.4
Metalicity : -0.1
Absolute Magnitude: 10.3
Apparent Magnitude: 13.4
Right Ascension(RA) 332.5625
Declination (DEC) 58.7061
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-2285 b
TOI-2285 b

  • TOI-2285 b is an exoplanet orbiting the star TOI-2285, located about 138.3 light-years (42.4 pc) away from Solar System. Its discovery was publicly announced on 2021.
  • The host star TOI-2285 has apparent magnitude of 13.4, with absolute magnitude of 10.3.
  • It is 0.5 times more massive and 0.5 times bigger compared with our Sun. The surface temperature is 3491 with its spectral types of M4
  • In this planetary system, the extrasolar planet TOI-2285 b orbits around the star TOI-2285 every 27.3 days with its orbital distance of 0.14 AU ( 20390189.8 km)
  • (Projected orbit of TOI-2285 b around its host star TOI-2285)


  • The Star TOI-2285 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.123 AU ( 18326342.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.169 AU ( 25331794.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.258 AU ( 38600048.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.380 AU ( 56801662.0 km)
  • Radiation at Planetary Boundary of TOI-2285 b : 2110.81 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-2285)



  • Kopparapu Recent Venus for Star TOI-2285 distance : 0.138 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-2285 distance : 0.175 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-2285 distance : 0.169 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-2285 distance : 0.186 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-2285 distance : 0.341 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-2285 distance : 0.360 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-2285)



  • Original Kopparapu Recent Venus for Star TOI-2285 distance : 0.137 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-2285 distance : 0.181 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-2285 distance : 0.182 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-2285 distance : 0.346 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-2285 distance : 0.360 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-2285)



    (Position in Stellar Map of star TOI-2285 and its Exoplanet TOI-2285 b)



    (Zoomed position in Stellar Map of star TOI-2285 and its Exoplanet TOI-2285 b (zoom level 3))

    (Synthetic Spectrum of star TOI-2285*)
    *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