Imaginary Picture of TOI-216 b

Display orbital revolution of TOI-216 b around the hoststar TOI-216
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Exoplanet Name : TOI-216 b
Alternate Name : TOI-216.02
Status : Confirmed
Radius (Rjup / Re): 0.6861 (Rjup) 7.6905 (Rearth)
Mass (Mjup / Me): 0.0558 (Mjup) 17.7409 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1293 (AU) 0.1293 (AU Est.)
Eccentricity : 0.1610
Orbital Period(Yrs) 0.0468
Orbital Period(Observed/Estimated) 17.10 (Days Obs.) 19.35 (Days Est.)
Surface Gravity (G Earth) 0.3000
Star Radiation at Atmospheric Boundary: 26515.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 569.5 (K)
Blackbody T 0.3(K) 534.8 (K)
Blackbody T 0.7(K) 432.7 (K)
Tidally Locked Blackbody T 0.1(K) 677.3 (K)
Tidally Locked Blackbody T 0.3(K) 636.0 (K)
Size Class: sub-Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : TTV
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : TOI-216
Alternate Name :
Star Distance(LY) : 583.5
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5045 (K)
Spectral type : K1
UV portion[%]: 3.5
Visible portion[%]: 37.6
IR portion[%]: 58.8
Metalicity : -0.1
Absolute Magnitude: 6.1
Apparent Magnitude: 12.4
Right Ascension(RA) 73.9802
Declination (DEC) -63.2601
Hubble Space Telescope Guide Star Catalog (GSC) ID
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-216&submit=SIMBAD+search
Open Exoplanet Database Link
TOI-216 b
TOI-216 b

  • TOI-216 b is an exoplanet orbiting the star TOI-216, located about 583.5 light-years (178.9 pc) away from Solar System. Its discovery was publicly announced on 2019.
  • The host star TOI-216 has apparent magnitude of 12.4, with absolute magnitude of 6.1.
  • It is 0.8 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 5045 with its spectral types of K1
  • In this planetary system, the extrasolar planet TOI-216 b orbits around the star TOI-216 every 17.1 days with its orbital distance of 0.13 AU ( 19343004.7 km)
  • (Projected orbit of TOI-216 b around its host star TOI-216)


  • The Star TOI-216 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.412 AU ( 61617071.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.569 AU ( 85170895.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.868 AU ( 129781596.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.277 AU ( 190979304.9 km)
  • Radiation at Planetary Boundary of TOI-216 b : 26515.12 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-216)



  • Kopparapu Recent Venus for Star TOI-216 distance : 0.445 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-216 distance : 0.563 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-216 distance : 0.544 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-216 distance : 0.597 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-216 distance : 1.018 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-216 distance : 1.074 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-216)



  • Original Kopparapu Recent Venus for Star TOI-216 distance : 0.440 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-216 distance : 0.580 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-216 distance : 0.582 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-216 distance : 1.036 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-216 distance : 1.077 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-216)



    (Position in Stellar Map of star TOI-216 and its Exoplanet TOI-216 b)



    (Zoomed position in Stellar Map of star TOI-216 and its Exoplanet TOI-216 b (zoom level 3))

    (Synthetic Spectrum of star TOI-216*)
    *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