Imaginary Picture of TOI-141 b

Display orbital revolution of TOI-141 b around the hoststar TOI-141
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Exoplanet Name : TOI-141 b
Alternate Name : HD 213885 b
Status : Confirmed
Radius (Rjup / Re): 0.1557 (Rjup) 1.7450 (Rearth)
Mass (Mjup / Me): 0.0278 (Mjup) 8.8323 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0201 (AU) 0.0201 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0028
Orbital Period(Observed/Estimated) 1.01 (Days Obs.) 1.01 (Days Est.)
Surface Gravity (G Earth) 2.9005
Star Radiation at Atmospheric Boundary: 3360270.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1910.9 (K)
Blackbody T 0.3(K) 1794.5 (K)
Blackbody T 0.7(K) 1452.0 (K)
Tidally Locked Blackbody T 0.1(K) 2272.4 (K)
Tidally Locked Blackbody T 0.3(K) 2134.1 (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-141
Alternate Name : HD 213885
Star Distance(LY) : 157.1
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 3.8 (GY)
Temperature : 5500 (K)
Spectral type : G
UV portion[%]: 6.9
Visible portion[%]: 43.2
IR portion[%]: 49.9
Metalicity : -0.0
Absolute Magnitude: 4.6
Apparent Magnitude: 8.0
Right Ascension(RA) 338.9846
Declination (DEC) -59.8647
Hubble Space Telescope Guide Star Catalog (GSC) ID 08829-00603
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=HD+213885+&submit=SIMBAD+search
Open Exoplanet Database Link
TOI-141 b
TOI-141 b

  • TOI-141 b is an exoplanet orbiting the star TOI-141, located about 157.1 light-years (48.2 pc) away from Solar System. Its discovery was publicly announced on 2019.
  • The host star TOI-141 has apparent magnitude of 8.0, with absolute magnitude of 4.6.
  • It is 1.1 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5500 with its spectral types of G
  • In this planetary system, the extrasolar planet TOI-141 b orbits around the star TOI-141 every 1.0 days with its orbital distance of 0.02 AU ( 3009909.2 km)
  • (Projected orbit of TOI-141 b around its host star TOI-141)


  • The Star TOI-141 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.722 AU ( 107937116.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.997 AU ( 149197301.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.520 AU ( 227343670.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.236 AU ( 334546170.8 km)
  • Radiation at Planetary Boundary of TOI-141 b : 3360270.61 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-141)



  • Kopparapu Recent Venus for Star TOI-141 distance : 0.760 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-141 distance : 0.963 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-141 distance : 0.930 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-141 distance : 1.020 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-141 distance : 1.714 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-141 distance : 1.807 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-141)



  • Original Kopparapu Recent Venus for Star TOI-141 distance : 0.757 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-141 distance : 0.990 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-141 distance : 1.002 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-141 distance : 1.743 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-141 distance : 1.813 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-141)



    (Position in Stellar Map of star TOI-141 and its Exoplanet TOI-141 b)



    (Zoomed position in Stellar Map of star TOI-141 and its Exoplanet TOI-141 b (zoom level 3))

    (Synthetic Spectrum of star TOI-141*)
    *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