Imaginary Picture of TOI-2015 b

Display orbital revolution of TOI-2015 b around the hoststar TOI-2015
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Exoplanet Name : TOI-2015 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.3024 (Rjup) 3.3896 (Rearth)
Mass (Mjup / Me): 0.0418 (Mjup) 13.2898 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0300 (AU) 0.0300 (AU Est.)
Eccentricity : 0.0770
Orbital Period(Yrs) 0.0092
Orbital Period(Observed/Estimated) 3.35 (Days Obs.) 3.25 (Days Est.)
Surface Gravity (G Earth) 1.1567
Star Radiation at Atmospheric Boundary: 15725.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 499.8 (K)
Blackbody T 0.3(K) 469.4 (K)
Blackbody T 0.7(K) 379.8 (K)
Tidally Locked Blackbody T 0.1(K) 594.4 (K)
Tidally Locked Blackbody T 0.3(K) 558.2 (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-2015
Alternate Name :
Star Distance(LY) : 154.3
Stellar Radius(Rsun) : 0.3 (Rsun Measured)
Stellar Mass(Msun) : 0.3 (Msun Measured) 0.3 (Msun Estimated)
Star Age : 6.8 (GY)
Temperature : 3194 (K)
Spectral type : M4
UV portion[%]: 0.3
Visible portion[%]: 7.6
IR portion[%]: 92.1
Metalicity : 0.1
Absolute Magnitude: 12.6
Apparent Magnitude: 16.0
Right Ascension(RA) 232.1333
Declination (DEC) 27.3611
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-2015 b
TOI-2015 b

  • TOI-2015 b is an exoplanet orbiting the star TOI-2015, located about 154.3 light-years (47.3 pc) away from Solar System. Its discovery was publicly announced on 2023.
  • The host star TOI-2015 has apparent magnitude of 16.0, with absolute magnitude of 12.6.
  • It is 0.3 times more massive and 0.3 times bigger compared with our Sun. The surface temperature is 3194 with its spectral types of M4
  • In this planetary system, the extrasolar planet TOI-2015 b orbits around the star TOI-2015 every 3.3 days with its orbital distance of 0.03 AU ( 4487936.1 km)
  • (Projected orbit of TOI-2015 b around its host star TOI-2015)


  • The Star TOI-2015 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.074 AU ( 11009615.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.102 AU ( 15218166.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.155 AU ( 23189117.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.228 AU ( 34123802.7 km)
  • Radiation at Planetary Boundary of TOI-2015 b : 15724.99 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-2015)



  • Kopparapu Recent Venus for Star TOI-2015 distance : 0.083 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-2015 distance : 0.106 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-2015 distance : 0.102 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-2015 distance : 0.112 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-2015 distance : 0.208 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-2015 distance : 0.220 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-2015)



  • Original Kopparapu Recent Venus for Star TOI-2015 distance : 0.083 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-2015 distance : 0.109 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-2015 distance : 0.110 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-2015 distance : 0.212 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-2015 distance : 0.220 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-2015)



    (Position in Stellar Map of star TOI-2015 and its Exoplanet TOI-2015 b)



    (Zoomed position in Stellar Map of star TOI-2015 and its Exoplanet TOI-2015 b (zoom level 3))

    (Synthetic Spectrum of star TOI-2015*)
    *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