Imaginary Picture of TOI-1249 b

Display orbital revolution of TOI-1249 b around the hoststar TOI-1249
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Exoplanet Name : TOI-1249 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.2899 (Rjup) 3.2495 (Rearth)
Mass (Mjup / Me): 0.0374 (Mjup) 11.8909 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1090 (AU) 0.1090 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0358
Orbital Period(Observed/Estimated) 13.08 (Days Obs.) 13.49 (Days Est.)
Surface Gravity (G Earth) 1.1261
Star Radiation at Atmospheric Boundary: 91262.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 775.7 (K)
Blackbody T 0.3(K) 728.5 (K)
Blackbody T 0.7(K) 589.4 (K)
Tidally Locked Blackbody T 0.1(K) 922.5 (K)
Tidally Locked Blackbody T 0.3(K) 866.3 (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-1249
Alternate Name :
Star Distance(LY) : 455.0
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5453 (K)
Spectral type : G7
UV portion[%]: 6.7
Visible portion[%]: 42.9
IR portion[%]: 50.5
Metalicity : 0.0
Absolute Magnitude: 16.3
Apparent Magnitude: 22.0
Right Ascension(RA) 200.5613
Declination (DEC) 68.3085
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-1249 b
TOI-1249 b

  • TOI-1249 b is an exoplanet orbiting the star TOI-1249, located about 455.0 light-years (139.5 pc) away from Solar System. Its discovery was publicly announced on 2024.
  • The host star TOI-1249 has apparent magnitude of 22.0, with absolute magnitude of 16.3.
  • It is 0.9 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5453 with its spectral types of G7
  • In this planetary system, the extrasolar planet TOI-1249 b orbits around the star TOI-1249 every 13.1 days with its orbital distance of 0.11 AU ( 16306167.9 km)
  • (Projected orbit of TOI-1249 b around its host star TOI-1249)


  • The Star TOI-1249 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.644 AU ( 96367170.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.890 AU ( 133204613.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.357 AU ( 202974352.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.997 AU ( 298685651.9 km)
  • Radiation at Planetary Boundary of TOI-1249 b : 91262.80 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-1249)



  • Kopparapu Recent Venus for Star TOI-1249 distance : 0.680 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-1249 distance : 0.862 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-1249 distance : 0.832 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-1249 distance : 0.913 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1249 distance : 1.536 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-1249 distance : 1.620 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-1249)



  • Original Kopparapu Recent Venus for Star TOI-1249 distance : 0.677 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-1249 distance : 0.886 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-1249 distance : 0.896 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1249 distance : 1.563 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-1249 distance : 1.625 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-1249)



    (Position in Stellar Map of star TOI-1249 and its Exoplanet TOI-1249 b)



    (Zoomed position in Stellar Map of star TOI-1249 and its Exoplanet TOI-1249 b (zoom level 3))

    (Synthetic Spectrum of star TOI-1249*)
    *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