Imaginary Picture of TOI-1824 b

Display orbital revolution of TOI-1824 b around the hoststar TOI-1824
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Exoplanet Name : TOI-1824 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.2346 (Rjup) 2.6296 (Rearth)
Mass (Mjup / Me): 0.0582 (Mjup) 18.5040 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1490 (AU) 0.1490 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0624
Orbital Period(Observed/Estimated) 22.81 (Days Obs.) 22.79 (Days Est.)
Surface Gravity (G Earth) 2.6759
Star Radiation at Atmospheric Boundary: 25452.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 563.7 (K)
Blackbody T 0.3(K) 529.4 (K)
Blackbody T 0.7(K) 428.3 (K)
Tidally Locked Blackbody T 0.1(K) 670.4 (K)
Tidally Locked Blackbody T 0.3(K) 629.6 (K)
Size Class: sub-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-1824
Alternate Name :
Star Distance(LY) : 194.0
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5180 (K)
Spectral type : F8 D
UV portion[%]: 4.8
Visible portion[%]: 39.8
IR portion[%]: 55.3
Metalicity : 0.1
Absolute Magnitude: 4.8
Apparent Magnitude: 8.7
Right Ascension(RA) 197.7308
Declination (DEC) 61.7448
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-1824 b
TOI-1824 b

  • TOI-1824 b is an exoplanet orbiting the star TOI-1824, located about 194.0 light-years (59.5 pc) away from Solar System. Its discovery was publicly announced on 2024.
  • The host star TOI-1824 has apparent magnitude of 8.7, with absolute magnitude of 4.8.
  • It is 0.8 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5180 with its spectral types of F8 D
  • In this planetary system, the extrasolar planet TOI-1824 b orbits around the star TOI-1824 every 22.8 days with its orbital distance of 0.15 AU ( 22290082.7 km)
  • (Projected orbit of TOI-1824 b around its host star TOI-1824)


  • The Star TOI-1824 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.465 AU ( 69567695.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.643 AU ( 96160735.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.979 AU ( 146527681.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.441 AU ( 215621901.6 km)
  • Radiation at Planetary Boundary of TOI-1824 b : 25452.55 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-1824)



  • Kopparapu Recent Venus for Star TOI-1824 distance : 0.499 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-1824 distance : 0.631 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-1824 distance : 0.610 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-1824 distance : 0.669 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1824 distance : 1.136 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-1824 distance : 1.199 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-1824)



  • Original Kopparapu Recent Venus for Star TOI-1824 distance : 0.494 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-1824 distance : 0.650 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-1824 distance : 0.654 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1824 distance : 1.156 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-1824 distance : 1.202 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-1824)



    (Position in Stellar Map of star TOI-1824 and its Exoplanet TOI-1824 b)



    (Zoomed position in Stellar Map of star TOI-1824 and its Exoplanet TOI-1824 b (zoom level 3))

    (Synthetic Spectrum of star TOI-1824*)
    *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