Imaginary Picture of TOI-942 b

Display orbital revolution of TOI-942 b around the hoststar TOI-942
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Exoplanet Name : TOI-942 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.4291 (Rjup) 4.8098 (Rearth)
Mass (Mjup / Me): 2.5990 (Mjup) 826.3209 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0480 (AU) 0.0480 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0118
Orbital Period(Observed/Estimated) 4.32 (Days Obs.) 4.09 (Days Est.)
Surface Gravity (G Earth) 35.7189
Star Radiation at Atmospheric Boundary: 259194.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1007.0 (K)
Blackbody T 0.3(K) 945.7 (K)
Blackbody T 0.7(K) 765.2 (K)
Tidally Locked Blackbody T 0.1(K) 1197.6 (K)
Tidally Locked Blackbody T 0.3(K) 1124.7 (K)
Size Class: Neptune-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-942
Alternate Name :
Star Distance(LY) : 499.9
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 0.1 (GY)
Temperature : 4969 (K)
Spectral type : K2
UV portion[%]: 3.1
Visible portion[%]: 36.7
IR portion[%]: 60.2
Metalicity : 0.0
Absolute Magnitude: 6.1
Apparent Magnitude: 12.0
Right Ascension(RA) 76.6500
Declination (DEC) -20.2456
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-942 b
TOI-942 b

  • TOI-942 b is an exoplanet orbiting the star TOI-942, located about 499.9 light-years (153.3 pc) away from Solar System.
  • The host star TOI-942 has apparent magnitude of 12.0, with absolute magnitude of 6.1.
  • It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 4969 with its spectral types of K2
  • In this planetary system, the extrasolar planet TOI-942 b orbits around the star TOI-942 every 4.3 days with its orbital distance of 0.05 AU ( 7174713.9 km)
  • (Projected orbit of TOI-942 b around its host star TOI-942)


  • The Star TOI-942 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.478 AU ( 71457458.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.660 AU ( 98772881.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.006 AU ( 150508013.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.480 AU ( 221479134.5 km)
  • Radiation at Planetary Boundary of TOI-942 b : 259194.25 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-942)



  • Kopparapu Recent Venus for Star TOI-942 distance : 0.517 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-942 distance : 0.655 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-942 distance : 0.633 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-942 distance : 0.695 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-942 distance : 1.189 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-942 distance : 1.254 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-942)



  • Original Kopparapu Recent Venus for Star TOI-942 distance : 0.512 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-942 distance : 0.675 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-942 distance : 0.677 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-942 distance : 1.209 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-942 distance : 1.257 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-942)



    (Position in Stellar Map of star TOI-942 and its Exoplanet TOI-942 b)



    (Zoomed position in Stellar Map of star TOI-942 and its Exoplanet TOI-942 b (zoom level 3))

    (Synthetic Spectrum of star TOI-942*)
    *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