Imaginary Picture of TOI-1807 b

Display orbital revolution of TOI-1807 b around the hoststar TOI-1807
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Exoplanet Name : TOI-1807 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.1222 (Rjup) 1.3697 (Rearth)
Mass (Mjup / Me): 0.0081 (Mjup) 2.5721 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0120 (AU) 0.0120 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0015
Orbital Period(Observed/Estimated) 0.55 (Days Obs.) 0.55 (Days Est.)
Surface Gravity (G Earth) 1.3709
Star Radiation at Atmospheric Boundary: 2016474.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1681.9 (K)
Blackbody T 0.3(K) 1579.4 (K)
Blackbody T 0.7(K) 1277.9 (K)
Tidally Locked Blackbody T 0.1(K) 2000.1 (K)
Tidally Locked Blackbody T 0.3(K) 1878.3 (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: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : TOI-1807
Alternate Name :
Star Distance(LY) : 138.9
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 0.2 (GY)
Temperature : 4757 (K)
Spectral type : K3
UV portion[%]: 2.3
Visible portion[%]: 35.0
IR portion[%]: 62.7
Metalicity : -0.0
Absolute Magnitude: 6.9
Apparent Magnitude: 10.0
Right Ascension(RA) 201.2833
Declination (DEC) 38.9225
Hubble Space Telescope Guide Star Catalog (GSC) ID 03025-00731
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-1807&submit=SIMBAD+search
Open Exoplanet Database Link
TOI-1807 b
TOI-1807 b

  • TOI-1807 b is an exoplanet orbiting the star TOI-1807, located about 138.9 light-years (42.6 pc) away from Solar System. Its discovery was publicly announced on 2021.
  • The host star TOI-1807 has apparent magnitude of 10.0, with absolute magnitude of 6.9.
  • It is 0.8 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4757 with its spectral types of K3
  • In this planetary system, the extrasolar planet TOI-1807 b orbits around the star TOI-1807 every 0.5 days with its orbital distance of 0.01 AU ( 1795174.4 km)
  • (Projected orbit of TOI-1807 b around its host star TOI-1807)


  • The Star TOI-1807 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.333 AU ( 49869306.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.461 AU ( 68932413.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.702 AU ( 105037744.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.033 AU ( 154567641.7 km)
  • Radiation at Planetary Boundary of TOI-1807 b : 2016474.57 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-1807)



  • Kopparapu Recent Venus for Star TOI-1807 distance : 0.365 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-1807 distance : 0.462 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-1807 distance : 0.446 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-1807 distance : 0.489 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1807 distance : 0.845 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-1807 distance : 0.891 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-1807)



  • Original Kopparapu Recent Venus for Star TOI-1807 distance : 0.360 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-1807 distance : 0.476 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-1807 distance : 0.476 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1807 distance : 0.859 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-1807 distance : 0.893 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-1807)



    (Position in Stellar Map of star TOI-1807 and its Exoplanet TOI-1807 b)



    (Zoomed position in Stellar Map of star TOI-1807 and its Exoplanet TOI-1807 b (zoom level 3))

    (Synthetic Spectrum of star TOI-1807*)
    *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