Imaginary Picture of TOI-1478 b

Display orbital revolution of TOI-1478 b around the hoststar TOI-1478
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Exoplanet Name : TOI-1478 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.0600 (Rjup) 11.8815 (Rearth)
Mass (Mjup / Me): 0.8470 (Mjup) 269.2935 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0903 (AU) 0.0903 (AU Est.)
Eccentricity : 0.0250
Orbital Period(Yrs) 0.0279
Orbital Period(Observed/Estimated) 10.18 (Days Obs.) 10.19 (Days Est.)
Surface Gravity (G Earth) 1.9076
Star Radiation at Atmospheric Boundary: 162483.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 896.1 (K)
Blackbody T 0.3(K) 841.5 (K)
Blackbody T 0.7(K) 680.9 (K)
Tidally Locked Blackbody T 0.1(K) 1065.6 (K)
Tidally Locked Blackbody T 0.3(K) 1000.7 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Timing
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : TOI-1478
Alternate Name :
Star Distance(LY) : 499.0
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 9.2 (GY)
Temperature : 5595 (K)
Spectral type : G6
UV portion[%]: 7.3
Visible portion[%]: 43.8
IR portion[%]: 48.9
Metalicity : 0.1
Absolute Magnitude: 4.9
Apparent Magnitude: 10.8
Right Ascension(RA) 126.4333
Declination (DEC) -13.5597
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-1478 b
TOI-1478 b

  • TOI-1478 b is an exoplanet orbiting the star TOI-1478, located about 499.0 light-years (153.0 pc) away from Solar System. Its discovery was publicly announced on 2021.
  • The host star TOI-1478 has apparent magnitude of 10.8, with absolute magnitude of 4.9.
  • It is 0.9 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5595 with its spectral types of G6
  • In this planetary system, the extrasolar planet TOI-1478 b orbits around the star TOI-1478 every 10.2 days with its orbital distance of 0.09 AU ( 13508687.7 km)
  • (Projected orbit of TOI-1478 b around its host star TOI-1478)


  • The Star TOI-1478 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.712 AU ( 106524031.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.984 AU ( 147244049.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.500 AU ( 224367346.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.207 AU ( 330166378.5 km)
  • Radiation at Planetary Boundary of TOI-1478 b : 162483.13 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-1478)



  • Kopparapu Recent Venus for Star TOI-1478 distance : 0.746 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-1478 distance : 0.945 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-1478 distance : 0.912 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-1478 distance : 1.001 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1478 distance : 1.677 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-1478 distance : 1.769 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-1478)



  • Original Kopparapu Recent Venus for Star TOI-1478 distance : 0.744 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-1478 distance : 0.971 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-1478 distance : 0.985 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1478 distance : 1.706 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-1478 distance : 1.774 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-1478)



    (Position in Stellar Map of star TOI-1478 and its Exoplanet TOI-1478 b)



    (Zoomed position in Stellar Map of star TOI-1478 and its Exoplanet TOI-1478 b (zoom level 3))

    (Synthetic Spectrum of star TOI-1478*)
    *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