Imaginary Picture of 2M 0122-24 b

Display orbital revolution of 2M 0122-24 b around the hoststar 2M 0122-24
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Exoplanet Name : 2M 0122-24 b
Alternate Name :
Radius (Rjup / Re): 1.0000 (Rjup) 11.2090 (Rearth)
Mass (Mjup / Me): 20.0000 (Mjup) 6358.7600 (Mearth)
Semi Major Axis / Orbital Distance Calculated 52.0000 (AU) 52.0000 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0000
Orbital Period(Observed/Estimated) 0.00 (Days Obs.) 216553.52 (Days Est.)
Surface Gravity (G Earth) 50.6103
Star Radiation at Atmospheric Boundary: 0.0 (W/m2)
Measured Temperature (K) 1380.0 (K)
Blackbody T 0.1(K) 14.4 (K)
Blackbody T 0.3(K) 13.5 (K)
Blackbody T 0.7(K) 10.9 (K)
Tidally Locked Blackbody T 0.1(K) 17.1 (K)
Tidally Locked Blackbody T 0.3(K) 16.1 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Imaging
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : 2M 0122-24
Alternate Name :
Star Distance(LY) : 117.4
Stellar Radius(Rsun) : 0.4 (Rsun Estimated)
Stellar Mass(Msun) : 0.4 (Msun Measured) 0.0 (Msun Estimated)
Star Age : 0.1 (GY)
Temperature : 3500 (K)
Spectral type : M3.5
UV portion[%]: 0.3
Visible portion[%]: 14.5
IR portion[%]: 85.2
Metalicity : 0.0
Absolute Magnitude: 19.2
Apparent Magnitude: 22.0
Right Ascension(RA) 20.7125
Declination (DEC) -24.6142
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title 0
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK
Open Exoplanet Database Link 0
2M 0122-24 b
2M 0122-24 b

  • 2M 0122-24 b is an exoplanet orbiting the star 2M 0122-24, located about 117.4 light-years (36.0 pc) away from Solar System. Its discovery was publicly announced on 2013.
  • The host star 2M 0122-24 has apparent magnitude of 22.0, with absolute magnitude of 19.2.
  • It is 0.4 times more massive and 0.4 times bigger compared with our Sun. The surface temperature is 3500 with its spectral types of M3.5
  • (Projected orbit of 2M 0122-24 b around its host star 2M 0122-24)


  • The Star 2M 0122-24 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.106 AU ( 15855748.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.147 AU ( 21916787.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.223 AU ( 33396334.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.329 AU ( 49144169.1 km)
  • Radiation at Planetary Boundary of 2M 0122-24 b : 0.01 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 2M 0122-24)



  • Kopparapu Recent Venus for Star 2M 0122-24 distance : 0.120 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star 2M 0122-24 distance : 0.152 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 2M 0122-24 distance : 0.146 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star 2M 0122-24 distance : 0.161 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star 2M 0122-24 distance : 0.295 AU
  • Kopparapu Outer Boundary for Early Mars for Star 2M 0122-24 distance : 0.311 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star 2M 0122-24)



  • Original Kopparapu Recent Venus for Star 2M 0122-24 distance : 0.119 AU
  • Original Kopparapu Runaway Greenhouse for Star 2M 0122-24 distance : 0.157 AU
  • Original Kopparapu Moist Greenhouse for Star 2M 0122-24 distance : 0.157 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 2M 0122-24 distance : 0.300 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star 2M 0122-24 distance : 0.312 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star 2M 0122-24)



    (Position in Stellar Map of star 2M 0122-24 and its Exoplanet 2M 0122-24 b)



    (Zoomed position in Stellar Map of star 2M 0122-24 and its Exoplanet 2M 0122-24 b (zoom level 3))

    (Synthetic Spectrum of star 2M 0122-24*)
    *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