Imaginary Picture of TOI-329 b

Display orbital revolution of TOI-329 b around the hoststar TOI-329
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Exoplanet Name : TOI-329 b
Alternate Name : TOI-329.01
Status : Confirmed
Radius (Rjup / Re): 0.4211 (Rjup) 4.7201 (Rearth)
Mass (Mjup / Me): 0.1271 (Mjup) 40.4099 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0638 (AU) 0.0638 (AU Est.)
Eccentricity : 0.3900
Orbital Period(Yrs) 0.0156
Orbital Period(Observed/Estimated) 5.70 (Days Obs.) 5.95 (Days Est.)
Surface Gravity (G Earth) 1.8138
Star Radiation at Atmospheric Boundary: 746301.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1311.8 (K)
Blackbody T 0.3(K) 1231.9 (K)
Blackbody T 0.7(K) 996.8 (K)
Tidally Locked Blackbody T 0.1(K) 1560.0 (K)
Tidally Locked Blackbody T 0.3(K) 1465.0 (K)
Size Class: 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-329
Alternate Name :
Star Distance(LY) : 927.6
Stellar Radius(Rsun) : 1.6 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5560 (K)
Spectral type : G6
UV portion[%]: 7.1
Visible portion[%]: 43.6
IR portion[%]: 49.2
Metalicity : -0.1
Absolute Magnitude: 4.1
Apparent Magnitude: 11.4
Right Ascension(RA) 351.3208
Declination (DEC) -15.6346
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-329 b
TOI-329 b

  • TOI-329 b is an exoplanet orbiting the star TOI-329, located about 927.6 light-years (284.4 pc) away from Solar System. Its discovery was publicly announced on 2024.
  • The host star TOI-329 has apparent magnitude of 11.4, with absolute magnitude of 4.1.
  • It is 1.0 times more massive and 1.6 times bigger compared with our Sun. The surface temperature is 5560 with its spectral types of G6
  • In this planetary system, the extrasolar planet TOI-329 b orbits around the star TOI-329 every 5.7 days with its orbital distance of 0.06 AU ( 9544344.2 km)
  • (Projected orbit of TOI-329 b around its host star TOI-329)


  • The Star TOI-329 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.078 AU ( 161299704.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.490 AU ( 222958344.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.271 AU ( 339739176.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.342 AU ( 499941080.5 km)
  • Radiation at Planetary Boundary of TOI-329 b : 746301.60 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-329)



  • Kopparapu Recent Venus for Star TOI-329 distance : 1.132 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-329 distance : 1.433 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-329 distance : 1.384 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-329 distance : 1.518 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-329 distance : 2.547 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-329 distance : 2.687 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-329)



  • Original Kopparapu Recent Venus for Star TOI-329 distance : 1.129 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-329 distance : 1.474 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-329 distance : 1.494 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-329 distance : 2.591 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-329 distance : 2.695 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-329)



    (Position in Stellar Map of star TOI-329 and its Exoplanet TOI-329 b)



    (Zoomed position in Stellar Map of star TOI-329 and its Exoplanet TOI-329 b (zoom level 3))

    (Synthetic Spectrum of star TOI-329*)
    *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