Imaginary Picture of TOI-3353 b

Display orbital revolution of TOI-3353 b around the hoststar TOI-3353
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Exoplanet Name : TOI-3353 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.2382 (Rjup) 2.6700 (Rearth)
Mass (Mjup / Me): 0.0207 (Mjup) 6.5761 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0600 (AU) 0.0600 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0128
Orbital Period(Observed/Estimated) 4.67 (Days Obs.) 4.67 (Days Est.)
Surface Gravity (G Earth) 0.9225
Star Radiation at Atmospheric Boundary: 355312.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1089.7 (K)
Blackbody T 0.3(K) 1023.3 (K)
Blackbody T 0.7(K) 828.0 (K)
Tidally Locked Blackbody T 0.1(K) 1295.8 (K)
Tidally Locked Blackbody T 0.3(K) 1216.9 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : TOI-3353
Alternate Name :
Star Distance(LY) : 250.4
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 1.3 (Msun Measured) 1.3 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5627 (K)
Spectral type : G5
UV portion[%]: 7.4
Visible portion[%]: 44.0
IR portion[%]: 48.6
Metalicity : 0.0
Absolute Magnitude: 4.9
Apparent Magnitude: 9.3
Right Ascension(RA) 106.5296
Declination (DEC) -75.8196
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-3353 b
TOI-3353 b

  • TOI-3353 b is an exoplanet orbiting the star TOI-3353, located about 250.4 light-years (76.8 pc) away from Solar System. Its discovery was publicly announced on 2024.
  • The host star TOI-3353 has apparent magnitude of 9.3, with absolute magnitude of 4.9.
  • It is 1.3 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5627 with its spectral types of G5
  • In this planetary system, the extrasolar planet TOI-3353 b orbits around the star TOI-3353 every 4.7 days with its orbital distance of 0.06 AU ( 8975872.2 km)
  • (Projected orbit of TOI-3353 b around its host star TOI-3353)


  • The Star TOI-3353 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.700 AU ( 104667563.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.967 AU ( 144677925.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.474 AU ( 220457141.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.169 AU ( 324412341.4 km)
  • Radiation at Planetary Boundary of TOI-3353 b : 355312.36 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-3353)



  • Kopparapu Recent Venus for Star TOI-3353 distance : 0.732 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-3353 distance : 0.927 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-3353 distance : 0.895 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-3353 distance : 0.981 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-3353 distance : 1.643 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-3353 distance : 1.733 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-3353)



  • Original Kopparapu Recent Venus for Star TOI-3353 distance : 0.731 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-3353 distance : 0.953 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-3353 distance : 0.967 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-3353 distance : 1.672 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-3353 distance : 1.739 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-3353)



    (Position in Stellar Map of star TOI-3353 and its Exoplanet TOI-3353 b)



    (Zoomed position in Stellar Map of star TOI-3353 and its Exoplanet TOI-3353 b (zoom level 3))

    (Synthetic Spectrum of star TOI-3353*)
    *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