Imaginary Picture of TOI-1098 b

Display orbital revolution of TOI-1098 b around the hoststar TOI-1098
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Exoplanet Name : TOI-1098 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.2850 (Rjup) 3.1946 (Rearth)
Mass (Mjup / Me): 0.0244 (Mjup) 7.7699 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1130 (AU) 0.1130 (AU Est.)
Eccentricity : 0.2000
Orbital Period(Yrs) 0.0279
Orbital Period(Observed/Estimated) 10.18 (Days Obs.) 12.61 (Days Est.)
Surface Gravity (G Earth) 0.7614
Star Radiation at Atmospheric Boundary: 200959.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 945.0 (K)
Blackbody T 0.3(K) 887.4 (K)
Blackbody T 0.7(K) 718.0 (K)
Tidally Locked Blackbody T 0.1(K) 1123.8 (K)
Tidally Locked Blackbody T 0.3(K) 1055.3 (K)
Size Class: Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : TOI-1098
Alternate Name :
Star Distance(LY) : 342.8
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.9 (Msun Estimated)
Star Age : 0.2 (GY)
Temperature : 6200 (K)
Spectral type : F8V
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.1
Absolute Magnitude: 4.1
Apparent Magnitude: 9.2
Right Ascension(RA) 192.5958
Declination (DEC) -88.1211
Hubble Space Telescope Guide Star Catalog (GSC) ID 09516-00441
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=TOI-1098&submit=SIMBAD+search
Open Exoplanet Database Link
TOI-1098 b
TOI-1098 b

  • TOI-1098 b is an exoplanet orbiting the star TOI-1098, located about 342.8 light-years (105.1 pc) away from Solar System. Its discovery was publicly announced on 2021.
  • The host star TOI-1098 has apparent magnitude of 9.2, with absolute magnitude of 4.1.
  • It is 1.2 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6200 with its spectral types of F8V
  • In this planetary system, the extrasolar planet TOI-1098 b orbits around the star TOI-1098 every 10.2 days with its orbital distance of 0.11 AU ( 16904559.4 km)
  • (Projected orbit of TOI-1098 b around its host star TOI-1098)


  • The Star TOI-1098 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.991 AU ( 148247866.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.370 AU ( 204917293.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.087 AU ( 312248607.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.071 AU ( 459487504.7 km)
  • Radiation at Planetary Boundary of TOI-1098 b : 200959.53 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-1098)



  • Kopparapu Recent Venus for Star TOI-1098 distance : 1.001 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-1098 distance : 1.268 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-1098 distance : 1.224 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-1098 distance : 1.342 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1098 distance : 2.217 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-1098 distance : 2.338 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-1098)



  • Original Kopparapu Recent Venus for Star TOI-1098 distance : 1.011 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-1098 distance : 1.301 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-1098 distance : 1.338 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1098 distance : 2.257 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-1098 distance : 2.347 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-1098)



    (Position in Stellar Map of star TOI-1098 and its Exoplanet TOI-1098 b)



    (Zoomed position in Stellar Map of star TOI-1098 and its Exoplanet TOI-1098 b (zoom level 3))

    (Synthetic Spectrum of star TOI-1098*)
    *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