Imaginary Picture of TOI-603 b

Display orbital revolution of TOI-603 b around the hoststar TOI-603
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Exoplanet Name : TOI-603 b
Alternate Name : "BD+06 2168 b, TOI-603.01"
Status : Confirmed
Radius (Rjup / Re): 0.7075 (Rjup) 7.9304 (Rearth)
Mass (Mjup / Me): 0.1495 (Mjup) 47.5317 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1281 (AU) 0.1281 (AU Est.)
Eccentricity : 0.2200
Orbital Period(Yrs) 0.0443
Orbital Period(Observed/Estimated) 16.18 (Days Obs.) 16.17 (Days Est.)
Surface Gravity (G Earth) 0.7558
Star Radiation at Atmospheric Boundary: 240301.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 988.2 (K)
Blackbody T 0.3(K) 928.0 (K)
Blackbody T 0.7(K) 750.8 (K)
Tidally Locked Blackbody T 0.1(K) 1175.1 (K)
Tidally Locked Blackbody T 0.3(K) 1103.6 (K)
Size Class: sub-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 : TOI-603
Alternate Name : BD+06 2168
Star Distance(LY) : 671.6
Stellar Radius(Rsun) : 1.6 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 4.2 (GY)
Temperature : 5900 (K)
Spectral type : G0IV
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : 0.2
Absolute Magnitude: 3.7
Apparent Magnitude: 10.3
Right Ascension(RA) 141.1079
Declination (DEC) 5.7662
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-603 b
TOI-603 b

  • TOI-603 b is an exoplanet orbiting the star TOI-603, located about 671.6 light-years (205.9 pc) away from Solar System. Its discovery was publicly announced on 2024.
  • The host star TOI-603 has apparent magnitude of 10.3, with absolute magnitude of 3.7.
  • It is 1.1 times more massive and 1.6 times bigger compared with our Sun. The surface temperature is 5900 with its spectral types of G0IV
  • In this planetary system, the extrasolar planet TOI-603 b orbits around the star TOI-603 every 16.2 days with its orbital distance of 0.13 AU ( 19163487.2 km)
  • (Projected orbit of TOI-603 b around its host star TOI-603)


  • The Star TOI-603 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.228 AU ( 183773641.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.698 AU ( 254023197.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.587 AU ( 387075138.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.808 AU ( 569598022.5 km)
  • Radiation at Planetary Boundary of TOI-603 b : 240301.66 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-603)



  • Kopparapu Recent Venus for Star TOI-603 distance : 1.264 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-603 distance : 1.601 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-603 distance : 1.546 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-603 distance : 1.695 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-603 distance : 2.818 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-603 distance : 2.972 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-603)



  • Original Kopparapu Recent Venus for Star TOI-603 distance : 1.269 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-603 distance : 1.644 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-603 distance : 1.679 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-603 distance : 2.867 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-603 distance : 2.982 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-603)



    (Position in Stellar Map of star TOI-603 and its Exoplanet TOI-603 b)



    (Zoomed position in Stellar Map of star TOI-603 and its Exoplanet TOI-603 b (zoom level 3))

    (Synthetic Spectrum of star TOI-603*)
    *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