Imaginary Picture of TOI-1244 b

Display orbital revolution of TOI-1244 b around the hoststar TOI-1244
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Exoplanet Name : TOI-1244 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.2025 (Rjup) 2.2698 (Rearth)
Mass (Mjup / Me): 0.0208 (Mjup) 6.6131 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0610 (AU) 0.0610 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0175
Orbital Period(Observed/Estimated) 6.40 (Days Obs.) 6.44 (Days Est.)
Surface Gravity (G Earth) 1.2836
Star Radiation at Atmospheric Boundary: 76496.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 742.3 (K)
Blackbody T 0.3(K) 697.1 (K)
Blackbody T 0.7(K) 564.0 (K)
Tidally Locked Blackbody T 0.1(K) 882.7 (K)
Tidally Locked Blackbody T 0.3(K) 828.9 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : TOI-1244
Alternate Name :
Star Distance(LY) : 334.5
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.7 (Msun Measured) 0.7 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 4600 (K)
Spectral type : K4
UV portion[%]: 1.9
Visible portion[%]: 32.7
IR portion[%]: 65.4
Metalicity : 0.0
Absolute Magnitude: 16.9
Apparent Magnitude: 22.0
Right Ascension(RA) 256.2792
Declination (DEC) 69.5191
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-1244 b
TOI-1244 b

  • TOI-1244 b is an exoplanet orbiting the star TOI-1244, located about 334.5 light-years (102.5 pc) away from Solar System. Its discovery was publicly announced on 2024.
  • The host star TOI-1244 has apparent magnitude of 22.0, with absolute magnitude of 16.9.
  • It is 0.7 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4600 with its spectral types of K4
  • In this planetary system, the extrasolar planet TOI-1244 b orbits around the star TOI-1244 every 6.4 days with its orbital distance of 0.06 AU ( 9125470.1 km)
  • (Projected orbit of TOI-1244 b around its host star TOI-1244)


  • The Star TOI-1244 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.330 AU ( 49374904.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.456 AU ( 68249021.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.695 AU ( 103996405.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.023 AU ( 153035266.8 km)
  • Radiation at Planetary Boundary of TOI-1244 b : 76496.48 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-1244)



  • Kopparapu Recent Venus for Star TOI-1244 distance : 0.363 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-1244 distance : 0.460 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-1244 distance : 0.444 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-1244 distance : 0.488 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1244 distance : 0.848 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-1244 distance : 0.894 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-1244)



  • Original Kopparapu Recent Venus for Star TOI-1244 distance : 0.358 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-1244 distance : 0.475 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-1244 distance : 0.474 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1244 distance : 0.862 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-1244 distance : 0.896 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-1244)



    (Position in Stellar Map of star TOI-1244 and its Exoplanet TOI-1244 b)



    (Zoomed position in Stellar Map of star TOI-1244 and its Exoplanet TOI-1244 b (zoom level 3))

    (Synthetic Spectrum of star TOI-1244*)
    *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