Imaginary Picture of TOI-469 d

Display orbital revolution of TOI-469 d around the hoststar TOI-469
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Exoplanet Name : TOI-469 d
Alternate Name : "HIP 29442 d, HD 42813 d"
Status : Confirmed
Radius (Rjup / Re): 0.1222 (Rjup) 1.3697 (Rearth)
Mass (Mjup / Me): 0.0160 (Mjup) 5.0870 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0649 (AU) 0.0649 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0176
Orbital Period(Observed/Estimated) 6.43 (Days Obs.) 6.33 (Days Est.)
Surface Gravity (G Earth) 2.7114
Star Radiation at Atmospheric Boundary: 226797.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 974.0 (K)
Blackbody T 0.3(K) 914.7 (K)
Blackbody T 0.7(K) 740.1 (K)
Tidally Locked Blackbody T 0.1(K) 1158.3 (K)
Tidally Locked Blackbody T 0.3(K) 1087.7 (K)
Size Class: super-Earth-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Radial Velocity
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : TOI-469
Alternate Name : "HD 42813, HIP 29442"
Star Distance(LY) : 222.4
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 11.7 (GY)
Temperature : 5283 (K)
Spectral type : K0
UV portion[%]: 5.7
Visible portion[%]: 41.2
IR portion[%]: 53.1
Metalicity : 0.2
Absolute Magnitude: 5.3
Apparent Magnitude: 9.5
Right Ascension(RA) 93.0583
Declination (DEC) -14.6494
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-469 d
TOI-469 d

  • TOI-469 d is an exoplanet orbiting the star TOI-469, located about 222.4 light-years (68.2 pc) away from Solar System. Its discovery was publicly announced on 2023.
  • The host star TOI-469 has apparent magnitude of 9.5, with absolute magnitude of 5.3.
  • It is 0.9 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5283 with its spectral types of K0
  • In this planetary system, the extrasolar planet TOI-469 d orbits around the star TOI-469 every 6.4 days with its orbital distance of 0.06 AU ( 9708901.8 km)
  • (Projected orbit of TOI-469 d around its host star TOI-469)


  • The Star TOI-469 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.605 AU ( 90452241.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.836 AU ( 125028635.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.274 AU ( 190515972.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.874 AU ( 280352599.1 km)
  • Radiation at Planetary Boundary of TOI-469 d : 226797.29 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-469)



  • Kopparapu Recent Venus for Star TOI-469 distance : 0.645 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-469 distance : 0.816 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-469 distance : 0.788 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-469 distance : 0.865 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-469 distance : 1.464 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-469 distance : 1.544 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-469)



  • Original Kopparapu Recent Venus for Star TOI-469 distance : 0.640 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-469 distance : 0.840 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-469 distance : 0.847 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-469 distance : 1.489 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-469 distance : 1.548 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-469)



    (Position in Stellar Map of star TOI-469 and its Exoplanet TOI-469 d)



    (Zoomed position in Stellar Map of star TOI-469 and its Exoplanet TOI-469 d (zoom level 3))

    (Synthetic Spectrum of star TOI-469*)
    *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