Imaginary Picture of TOI-480 b

Display orbital revolution of TOI-480 b around the hoststar TOI-480
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Exoplanet Name : TOI-480 b
Alternate Name : "HD 39688 b, TOI-480.01"
Status : Confirmed
Radius (Rjup / Re): 0.2400 (Rjup) 2.6902 (Rearth)
Mass (Mjup / Me): 0.0654 (Mjup) 20.7931 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0751 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0188
Orbital Period(Observed/Estimated) 6.87 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 2.8732
Star Radiation at Atmospheric Boundary: 727932.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1303.7 (K)
Blackbody T 0.3(K) 1224.3 (K)
Blackbody T 0.7(K) 990.6 (K)
Tidally Locked Blackbody T 0.1(K) 1550.3 (K)
Tidally Locked Blackbody T 0.3(K) 1455.9 (K)
Size Class: sub-Neptune-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-480
Alternate Name :
Star Distance(LY) : 177.9
Stellar Radius(Rsun) : 1.5 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6212 (K)
Spectral type : F8
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : 0.0
Absolute Magnitude: 18.3
Apparent Magnitude: 22.0
Right Ascension(RA) 88.3783
Declination (DEC) -16.2654
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-480 b
TOI-480 b

  • TOI-480 b is an exoplanet orbiting the star TOI-480, located about 177.9 light-years (54.5 pc) away from Solar System. Its discovery was publicly announced on 2024.
  • The host star TOI-480 has apparent magnitude of 22.0, with absolute magnitude of 18.3.
  • It is 1.2 times more massive and 1.5 times bigger compared with our Sun. The surface temperature is 6212 with its spectral types of F8
  • In this planetary system, the extrasolar planet TOI-480 b orbits around the star TOI-480 every 6.9 days with its orbital distance of 0.08 AU ( 11239227.8 km)
  • (Projected orbit of TOI-480 b around its host star TOI-480)


  • The Star TOI-480 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.254 AU ( 187591115.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.733 AU ( 259299944.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.641 AU ( 395115733.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.887 AU ( 581430110.1 km)
  • Radiation at Planetary Boundary of TOI-480 b : 727932.30 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-480)



  • Kopparapu Recent Venus for Star TOI-480 distance : 1.266 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-480 distance : 1.603 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-480 distance : 1.548 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-480 distance : 1.697 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-480 distance : 2.803 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-480 distance : 2.956 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-480)



  • Original Kopparapu Recent Venus for Star TOI-480 distance : 1.279 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-480 distance : 1.645 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-480 distance : 1.693 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-480 distance : 2.853 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-480 distance : 2.967 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-480)



    (Position in Stellar Map of star TOI-480 and its Exoplanet TOI-480 b)



    (Zoomed position in Stellar Map of star TOI-480 and its Exoplanet TOI-480 b (zoom level 3))

    (Synthetic Spectrum of star TOI-480*)
    *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