Imaginary Picture of TOI-1860 b

Display orbital revolution of TOI-1860 b around the hoststar TOI-1860
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Exoplanet Name : TOI-1860 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.1169 (Rjup) 1.3103 (Rearth)
Mass (Mjup / Me): 0.0069 (Mjup) 2.1938 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0204 (AU) 0.0204 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0029
Orbital Period(Observed/Estimated) 1.06 (Days Obs.) 1.07 (Days Est.)
Surface Gravity (G Earth) 1.2777
Star Radiation at Atmospheric Boundary: 2850202.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1833.8 (K)
Blackbody T 0.3(K) 1722.2 (K)
Blackbody T 0.7(K) 1393.4 (K)
Tidally Locked Blackbody T 0.1(K) 2180.8 (K)
Tidally Locked Blackbody T 0.3(K) 2048.0 (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-1860
Alternate Name : "GJ 577A, HIP 73869, HD 134319"
Star Distance(LY) : 149.7
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5752 (K)
Spectral type : G5V
UV portion[%]: 7.7
Visible portion[%]: 44.6
IR portion[%]: 47.6
Metalicity : 0.0
Absolute Magnitude: 5.1
Apparent Magnitude: 8.4
Right Ascension(RA) 226.4583
Declination (DEC) 64.0472
Hubble Space Telescope Guide Star Catalog (GSC) ID 04183-00491
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-1860&submit=SIMBAD+search
Open Exoplanet Database Link
TOI-1860 b
TOI-1860 b

  • TOI-1860 b is an exoplanet orbiting the star TOI-1860, located about 149.7 light-years (45.9 pc) away from Solar System. Its discovery was publicly announced on 2022.
  • The host star TOI-1860 has apparent magnitude of 8.4, with absolute magnitude of 5.1.
  • It is 1.0 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5752 with its spectral types of G5V
  • In this planetary system, the extrasolar planet TOI-1860 b orbits around the star TOI-1860 every 1.1 days with its orbital distance of 0.02 AU ( 3051796.6 km)
  • (Projected orbit of TOI-1860 b around its host star TOI-1860)


  • The Star TOI-1860 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.674 AU ( 100791456.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.931 AU ( 139320132.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.419 AU ( 212293050.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.088 AU ( 312398524.3 km)
  • Radiation at Planetary Boundary of TOI-1860 b : 2850202.34 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-1860)



  • Kopparapu Recent Venus for Star TOI-1860 distance : 0.699 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-1860 distance : 0.886 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-1860 distance : 0.855 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-1860 distance : 0.938 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1860 distance : 1.565 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-1860 distance : 1.651 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-1860)



  • Original Kopparapu Recent Venus for Star TOI-1860 distance : 0.700 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-1860 distance : 0.910 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-1860 distance : 0.926 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1860 distance : 1.593 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-1860 distance : 1.656 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-1860)



    (Position in Stellar Map of star TOI-1860 and its Exoplanet TOI-1860 b)



    (Zoomed position in Stellar Map of star TOI-1860 and its Exoplanet TOI-1860 b (zoom level 3))

    (Synthetic Spectrum of star TOI-1860*)
    *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