Imaginary Picture of TOI-2459 b

Display orbital revolution of TOI-2459 b around the hoststar TOI-2459
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Exoplanet Name : TOI-2459 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.2632 (Rjup) 2.9502 (Rearth)
Mass (Mjup / Me): 0.0285 (Mjup) 9.0517 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.1218 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0523
Orbital Period(Observed/Estimated) 19.10 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.0400
Star Radiation at Atmospheric Boundary: 11669.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 463.9 (K)
Blackbody T 0.3(K) 435.6 (K)
Blackbody T 0.7(K) 352.5 (K)
Tidally Locked Blackbody T 0.1(K) 551.6 (K)
Tidally Locked Blackbody T 0.3(K) 518.1 (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-2459
Alternate Name :
Star Distance(LY) : 119.4
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.7 (Msun Measured) 0.7 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 4195 (K)
Spectral type : K6
UV portion[%]: 0.8
Visible portion[%]: 26.5
IR portion[%]: 72.7
Metalicity : 0.0
Absolute Magnitude: 8.0
Apparent Magnitude: 10.8
Right Ascension(RA) 82.1417
Declination (DEC) -39.3731
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-2459 b
TOI-2459 b

  • TOI-2459 b is an exoplanet orbiting the star TOI-2459, located about 119.4 light-years (36.6 pc) away from Solar System. Its discovery was publicly announced on 2019.
  • The host star TOI-2459 has apparent magnitude of 10.8, with absolute magnitude of 8.0.
  • It is 0.7 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4195 with its spectral types of K6
  • In this planetary system, the extrasolar planet TOI-2459 b orbits around the star TOI-2459 every 19.1 days with its orbital distance of 0.12 AU ( 18216865.9 km)
  • (Projected orbit of TOI-2459 b around its host star TOI-2459)


  • The Star TOI-2459 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.257 AU ( 38496905.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.356 AU ( 53212783.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.542 AU ( 81084505.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.798 AU ( 119319402.1 km)
  • Radiation at Planetary Boundary of TOI-2459 b : 11669.27 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-2459)



  • Kopparapu Recent Venus for Star TOI-2459 distance : 0.287 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-2459 distance : 0.363 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-2459 distance : 0.351 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-2459 distance : 0.385 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-2459 distance : 0.683 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-2459 distance : 0.720 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-2459)



  • Original Kopparapu Recent Venus for Star TOI-2459 distance : 0.283 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-2459 distance : 0.375 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-2459 distance : 0.375 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-2459 distance : 0.694 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-2459 distance : 0.721 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-2459)



    (Position in Stellar Map of star TOI-2459 and its Exoplanet TOI-2459 b)



    (Zoomed position in Stellar Map of star TOI-2459 and its Exoplanet TOI-2459 b (zoom level 3))

    (Synthetic Spectrum of star TOI-2459*)
    *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