Imaginary Picture of TOI-451 b

Display orbital revolution of TOI-451 b around the hoststar TOI-451
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Exoplanet Name : TOI-451 b
Alternate Name : Psc Eri b
Status : Confirmed
Radius (Rjup / Re): 0.1688 (Rjup) 1.8920 (Rearth)
Mass (Mjup / Me): 0.0150 (Mjup) 4.7736 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0271 (AU) 0.0271 (AU Est.)
Eccentricity : 0.1900
Orbital Period(Yrs) 0.0051
Orbital Period(Observed/Estimated) 1.86 (Days Obs.) 1.67 (Days Est.)
Surface Gravity (G Earth) 1.3336
Star Radiation at Atmospheric Boundary: 1224097.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1484.6 (K)
Blackbody T 0.3(K) 1394.2 (K)
Blackbody T 0.7(K) 1128.0 (K)
Tidally Locked Blackbody T 0.1(K) 1765.4 (K)
Tidally Locked Blackbody T 0.3(K) 1657.9 (K)
Size Class: super-Earth-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-451
Alternate Name : Psc Eri
Star Distance(LY) : 405.0
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 0.1 (GY)
Temperature : 5550 (K)
Spectral type : G6
UV portion[%]: 7.1
Visible portion[%]: 43.6
IR portion[%]: 49.3
Metalicity : 0.0
Absolute Magnitude: 5.5
Apparent Magnitude: 11.0
Right Ascension(RA) 62.9664
Declination (DEC) -37.9397
Hubble Space Telescope Guide Star Catalog (GSC) ID 07577-00172
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=TOI-451+&submit=SIMBAD+search
Open Exoplanet Database Link
TOI-451 b
TOI-451 b

  • TOI-451 b is an exoplanet orbiting the star TOI-451, located about 405.0 light-years (124.2 pc) away from Solar System. Its discovery was publicly announced on 2021.
  • The host star TOI-451 has apparent magnitude of 11.0, with absolute magnitude of 5.5.
  • It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5550 with its spectral types of G6
  • In this planetary system, the extrasolar planet TOI-451 b orbits around the star TOI-451 every 1.9 days with its orbital distance of 0.03 AU ( 4054102.3 km)
  • (Projected orbit of TOI-451 b around its host star TOI-451)


  • The Star TOI-451 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.587 AU ( 87747136.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.811 AU ( 121289474.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.235 AU ( 184818317.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.818 AU ( 271968249.9 km)
  • Radiation at Planetary Boundary of TOI-451 b : 1224097.22 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-451)



  • Kopparapu Recent Venus for Star TOI-451 distance : 0.616 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-451 distance : 0.780 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-451 distance : 0.754 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-451 distance : 0.826 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-451 distance : 1.387 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-451 distance : 1.463 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-451)



  • Original Kopparapu Recent Venus for Star TOI-451 distance : 0.614 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-451 distance : 0.802 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-451 distance : 0.813 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-451 distance : 1.411 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-451 distance : 1.467 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-451)



    (Position in Stellar Map of star TOI-451 and its Exoplanet TOI-451 b)



    (Zoomed position in Stellar Map of star TOI-451 and its Exoplanet TOI-451 b (zoom level 3))

    (Synthetic Spectrum of star TOI-451*)
    *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