Imaginary Picture of HD 332231 b

Display orbital revolution of HD 332231 b around the hoststar HD 332231
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Exoplanet Name : HD 332231 b
Alternate Name : TOI-1456 b
Status : Confirmed
Radius (Rjup / Re): 0.8670 (Rjup) 9.7182 (Rearth)
Mass (Mjup / Me): 0.2440 (Mjup) 77.5769 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1436 (AU) 0.1436 (AU Est.)
Eccentricity : 0.0320
Orbital Period(Yrs) 0.0512
Orbital Period(Observed/Estimated) 18.71 (Days Obs.) 18.72 (Days Est.)
Surface Gravity (G Earth) 0.8214
Star Radiation at Atmospheric Boundary: 133309.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 852.8 (K)
Blackbody T 0.3(K) 800.9 (K)
Blackbody T 0.7(K) 648.0 (K)
Tidally Locked Blackbody T 0.1(K) 1014.2 (K)
Tidally Locked Blackbody T 0.3(K) 952.4 (K)
Size Class: Jupiter-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 : HD 332231
Alternate Name : "TIC 199376584, TOI 1456"
Star Distance(LY) : 263.7
Stellar Radius(Rsun) : 1.3 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 4.3 (GY)
Temperature : 6089 (K)
Spectral type : F8
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.0
Absolute Magnitude: 4.0
Apparent Magnitude: 8.6
Right Ascension(RA) 306.7413
Declination (DEC) 33.7445
Hubble Space Telescope Guide Star Catalog (GSC) ID 02689-00070
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=HD+332231+&submit=SIMBAD+search
Open Exoplanet Database Link
HD 332231 b
HD 332231 b

  • HD 332231 b is an exoplanet orbiting the star HD 332231, located about 263.7 light-years (80.9 pc) away from Solar System. Its discovery was publicly announced on 2020.
  • The host star HD 332231 has apparent magnitude of 8.6, with absolute magnitude of 4.0.
  • It is 1.1 times more massive and 1.3 times bigger compared with our Sun. The surface temperature is 6089 with its spectral types of F8
  • In this planetary system, the extrasolar planet HD 332231 b orbits around the star HD 332231 every 18.7 days with its orbital distance of 0.14 AU ( 21482254.2 km)
  • (Projected orbit of HD 332231 b around its host star HD 332231)


  • The Star HD 332231 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.026 AU ( 153440836.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.418 AU ( 212095335.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.160 AU ( 323186354.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.179 AU ( 475582878.0 km)
  • Radiation at Planetary Boundary of HD 332231 b : 133309.66 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 332231)



  • Kopparapu Recent Venus for Star HD 332231 distance : 1.043 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 332231 distance : 1.321 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 332231 distance : 1.276 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 332231 distance : 1.398 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 332231 distance : 2.315 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 332231 distance : 2.442 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 332231)



  • Original Kopparapu Recent Venus for Star HD 332231 distance : 1.051 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 332231 distance : 1.356 AU
  • Original Kopparapu Moist Greenhouse for Star HD 332231 distance : 1.391 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 332231 distance : 2.357 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 332231 distance : 2.451 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 332231)



    (Position in Stellar Map of star HD 332231 and its Exoplanet HD 332231 b)



    (Zoomed position in Stellar Map of star HD 332231 and its Exoplanet HD 332231 b (zoom level 3))

    (Synthetic Spectrum of star HD 332231*)
    *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