Imaginary Picture of TOI-4860 b

Display orbital revolution of TOI-4860 b around the hoststar TOI-4860
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Exoplanet Name : TOI-4860 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.7560 (Rjup) 8.4740 (Rearth)
Mass (Mjup / Me): 0.6700 (Mjup) 213.0185 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0185 (AU) 0.0185 (AU Est.)
Eccentricity : 0.0470
Orbital Period(Yrs) 0.0042
Orbital Period(Observed/Estimated) 1.52 (Days Obs.) 1.59 (Days Est.)
Surface Gravity (G Earth) 2.9665
Star Radiation at Atmospheric Boundary: 57308.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 690.6 (K)
Blackbody T 0.3(K) 648.5 (K)
Blackbody T 0.7(K) 524.7 (K)
Tidally Locked Blackbody T 0.1(K) 821.2 (K)
Tidally Locked Blackbody T 0.3(K) 771.2 (K)
Size Class: Jupiter-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-4860
Alternate Name :
Star Distance(LY) : 260.9
Stellar Radius(Rsun) : 0.3 (Rsun Measured)
Stellar Mass(Msun) : 0.3 (Msun Measured) 0.4 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3390 (K)
Spectral type : M4.5
UV portion[%]: 0.3
Visible portion[%]: 12.2
IR portion[%]: 87.5
Metalicity : 0.3
Absolute Magnitude: 12.0
Apparent Magnitude: 16.5
Right Ascension(RA) 183.5625
Declination (DEC) -13.1747
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-4860 b
TOI-4860 b

  • TOI-4860 b is an exoplanet orbiting the star TOI-4860, located about 260.9 light-years (80.0 pc) away from Solar System. Its discovery was publicly announced on 2021.
  • The host star TOI-4860 has apparent magnitude of 16.5, with absolute magnitude of 12.0.
  • It is 0.3 times more massive and 0.3 times bigger compared with our Sun. The surface temperature is 3390 with its spectral types of M4.5
  • In this planetary system, the extrasolar planet TOI-4860 b orbits around the star TOI-4860 every 1.5 days with its orbital distance of 0.02 AU ( 2767560.6 km)
  • (Projected orbit of TOI-4860 b around its host star TOI-4860)


  • The Star TOI-4860 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.087 AU ( 12960947.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.120 AU ( 17915416.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.182 AU ( 27299130.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.269 AU ( 40171866.0 km)
  • Radiation at Planetary Boundary of TOI-4860 b : 57308.45 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-4860)



  • Kopparapu Recent Venus for Star TOI-4860 distance : 0.098 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-4860 distance : 0.124 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-4860 distance : 0.120 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-4860 distance : 0.132 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-4860 distance : 0.243 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-4860 distance : 0.256 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-4860)



  • Original Kopparapu Recent Venus for Star TOI-4860 distance : 0.097 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-4860 distance : 0.128 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-4860 distance : 0.129 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-4860 distance : 0.247 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-4860 distance : 0.256 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-4860)



    (Position in Stellar Map of star TOI-4860 and its Exoplanet TOI-4860 b)



    (Zoomed position in Stellar Map of star TOI-4860 and its Exoplanet TOI-4860 b (zoom level 3))

    (Synthetic Spectrum of star TOI-4860*)
    *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