Imaginary Picture of TOI-558 b

Display orbital revolution of TOI-558 b around the hoststar TOI-558
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Exoplanet Name : TOI-558 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.0860 (Rjup) 12.1730 (Rearth)
Mass (Mjup / Me): 3.6100 (Mjup) 1147.7562 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1291 (AU) 0.1291 (AU Est.)
Eccentricity : 0.2980
Orbital Period(Yrs) 0.0399
Orbital Period(Observed/Estimated) 14.57 (Days Obs.) 14.59 (Days Est.)
Surface Gravity (G Earth) 7.7456
Star Radiation at Atmospheric Boundary: 287844.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1033.8 (K)
Blackbody T 0.3(K) 970.8 (K)
Blackbody T 0.7(K) 785.5 (K)
Tidally Locked Blackbody T 0.1(K) 1229.4 (K)
Tidally Locked Blackbody T 0.3(K) 1154.5 (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-558
Alternate Name :
Star Distance(LY) : 1307.9
Stellar Radius(Rsun) : 1.5 (Rsun Measured)
Stellar Mass(Msun) : 1.3 (Msun Measured) 1.4 (Msun Estimated)
Star Age : 1.8 (GY)
Temperature : 6466 (K)
Spectral type : F7
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : -0.0
Absolute Magnitude: 3.3
Apparent Magnitude: 11.3
Right Ascension(RA) 42.2917
Declination (DEC) -58.0247
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-558 b
TOI-558 b

  • TOI-558 b is an exoplanet orbiting the star TOI-558, located about 1307.9 light-years (401.0 pc) away from Solar System. Its discovery was publicly announced on 2021.
  • The host star TOI-558 has apparent magnitude of 11.3, with absolute magnitude of 3.3.
  • It is 1.3 times more massive and 1.5 times bigger compared with our Sun. The surface temperature is 6466 with its spectral types of F7
  • In this planetary system, the extrasolar planet TOI-558 b orbits around the star TOI-558 every 14.6 days with its orbital distance of 0.13 AU ( 19313085.1 km)
  • (Projected orbit of TOI-558 b around its host star TOI-558)


  • The Star TOI-558 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.355 AU ( 202703434.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.873 AU ( 280189118.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.854 AU ( 426946211.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.200 AU ( 628270053.3 km)
  • Radiation at Planetary Boundary of TOI-558 b : 287844.75 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-558)



  • Kopparapu Recent Venus for Star TOI-558 distance : 1.347 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-558 distance : 1.706 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-558 distance : 1.648 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-558 distance : 1.805 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-558 distance : 2.970 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-558 distance : 3.132 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-558)



  • Original Kopparapu Recent Venus for Star TOI-558 distance : 1.369 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-558 distance : 1.749 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-558 distance : 1.812 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-558 distance : 3.024 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-558 distance : 3.144 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-558)



    (Position in Stellar Map of star TOI-558 and its Exoplanet TOI-558 b)



    (Zoomed position in Stellar Map of star TOI-558 and its Exoplanet TOI-558 b (zoom level 3))

    (Synthetic Spectrum of star TOI-558*)
    *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