Imaginary Picture of 2M 0103-55 (AB) b

Display orbital revolution of 2M 0103-55 (AB) b around the hoststar 2M 0103-55 (AB)
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Exoplanet Name : 2M 0103-55 (AB) b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 13.0000 (Mjup) 4133.1940 (Mearth)
Semi Major Axis / Orbital Distance Calculated 84.0000 (AU) 84.0000 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0000
Orbital Period(Observed/Estimated) 0.00 (Days Obs.) 444609.93 (Days Est.)
Surface Gravity (G Earth) 39.9156
Star Radiation at Atmospheric Boundary: 0.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 10.7 (K)
Blackbody T 0.3(K) 10.0 (K)
Blackbody T 0.7(K) 8.1 (K)
Tidally Locked Blackbody T 0.1(K) 12.7 (K)
Tidally Locked Blackbody T 0.3(K) 11.9 (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 0103-55 (AB)
Alternate Name :
Star Distance(LY) : 153.9
Stellar Radius(Rsun) : 0.4 (Rsun Estimated)
Stellar Mass(Msun) : 0.4 (Msun Measured) 0.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3300 (K)
Spectral type : M
UV portion[%]: 0.2
Visible portion[%]: 11.2
IR portion[%]: 88.6
Metalicity : 0.0
Absolute Magnitude: 4.1
Apparent Magnitude: 7.5
Right Ascension(RA) 15.9000
Declination (DEC) -55.2656
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 0103-55 (AB) b
2M 0103-55 (AB) b

  • 2M 0103-55 (AB) b is an exoplanet orbiting the star 2M 0103-55 (AB), located about 153.9 light-years (47.2 pc) away from Solar System. Its discovery was publicly announced on 2013.
  • The host star 2M 0103-55 (AB) has apparent magnitude of 7.5, with absolute magnitude of 4.1.
  • It is 0.4 times more massive and 0.4 times bigger compared with our Sun. The surface temperature is 3300 with its spectral types of M
  • (Projected orbit of 2M 0103-55 (AB) b around its host star 2M 0103-55 (AB))


  • The Star 2M 0103-55 (AB) 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.094 AU ( 14095436.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.130 AU ( 19483577.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.198 AU ( 29688659.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.292 AU ( 43688163.4 km)
  • Radiation at Planetary Boundary of 2M 0103-55 (AB) b : 0.00 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 2M 0103-55 (AB))



  • Kopparapu Recent Venus for Star 2M 0103-55 (AB) distance : 0.107 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star 2M 0103-55 (AB) distance : 0.135 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 2M 0103-55 (AB) distance : 0.130 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star 2M 0103-55 (AB) distance : 0.143 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star 2M 0103-55 (AB) distance : 0.265 AU
  • Kopparapu Outer Boundary for Early Mars for Star 2M 0103-55 (AB) distance : 0.280 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star 2M 0103-55 (AB))



  • Original Kopparapu Recent Venus for Star 2M 0103-55 (AB) distance : 0.106 AU
  • Original Kopparapu Runaway Greenhouse for Star 2M 0103-55 (AB) distance : 0.140 AU
  • Original Kopparapu Moist Greenhouse for Star 2M 0103-55 (AB) distance : 0.140 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 2M 0103-55 (AB) distance : 0.270 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star 2M 0103-55 (AB) distance : 0.280 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star 2M 0103-55 (AB))



    (Position in Stellar Map of star 2M 0103-55 (AB) and its Exoplanet 2M 0103-55 (AB) b)



    (Zoomed position in Stellar Map of star 2M 0103-55 (AB) and its Exoplanet 2M 0103-55 (AB) b (zoom level 3))

    (Synthetic Spectrum of star 2M 0103-55 (AB)*)
    *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