Imaginary Picture of TOI-836 c

Display orbital revolution of TOI-836 c around the hoststar TOI-836
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Exoplanet Name : TOI-836 c
Alternate Name : HIP 73427 c
Status : Confirmed
Radius (Rjup / Re): 0.2308 (Rjup) 2.5870 (Rearth)
Mass (Mjup / Me): 0.0302 (Mjup) 9.6017 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0750 (AU) 0.0750 (AU Est.)
Eccentricity : 0.0780
Orbital Period(Yrs) 0.0235
Orbital Period(Observed/Estimated) 8.60 (Days Obs.) 9.11 (Days Est.)
Surface Gravity (G Earth) 1.4346
Star Radiation at Atmospheric Boundary: 41393.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 636.6 (K)
Blackbody T 0.3(K) 597.8 (K)
Blackbody T 0.7(K) 483.7 (K)
Tidally Locked Blackbody T 0.1(K) 757.1 (K)
Tidally Locked Blackbody T 0.3(K) 711.0 (K)
Size Class: sub-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-836
Alternate Name : HIP 73427
Star Distance(LY) : 89.7
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.7 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 5.4 (GY)
Temperature : 4552 (K)
Spectral type : K4
UV portion[%]: 1.7
Visible portion[%]: 32.0
IR portion[%]: 66.3
Metalicity : -0.3
Absolute Magnitude: 7.7
Apparent Magnitude: 9.9
Right Ascension(RA) 225.0792
Declination (DEC) -24.4544
Hubble Space Telescope Guide Star Catalog (GSC) ID 06752-00835
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-836&submit=SIMBAD+search
Open Exoplanet Database Link
TOI-836 c
TOI-836 c

  • TOI-836 c is an exoplanet orbiting the star TOI-836, located about 89.7 light-years (27.5 pc) away from Solar System. Its discovery was publicly announced on 2022.
  • The host star TOI-836 has apparent magnitude of 9.9, with absolute magnitude of 7.7.
  • It is 0.7 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4552 with its spectral types of K4
  • In this planetary system, the extrasolar planet TOI-836 c orbits around the star TOI-836 every 8.6 days with its orbital distance of 0.07 AU ( 11219840.3 km)
  • (Projected orbit of TOI-836 c around its host star TOI-836)


  • The Star TOI-836 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.299 AU ( 44656457.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.413 AU ( 61726893.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.629 AU ( 94058126.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.925 AU ( 138410652.9 km)
  • Radiation at Planetary Boundary of TOI-836 c : 41393.73 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-836)



  • Kopparapu Recent Venus for Star TOI-836 distance : 0.329 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-836 distance : 0.417 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-836 distance : 0.402 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-836 distance : 0.442 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-836 distance : 0.770 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-836 distance : 0.812 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-836)



  • Original Kopparapu Recent Venus for Star TOI-836 distance : 0.325 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-836 distance : 0.430 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-836 distance : 0.430 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-836 distance : 0.782 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-836 distance : 0.814 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-836)



    (Position in Stellar Map of star TOI-836 and its Exoplanet TOI-836 c)



    (Zoomed position in Stellar Map of star TOI-836 and its Exoplanet TOI-836 c (zoom level 3))

    (Synthetic Spectrum of star TOI-836*)
    *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