Imaginary Picture of 2M 2140+16 b
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Exoplanet Name : 2M 2140+16 b
Alternate Name :
Radius (Rjup / Re): 0.9200 (Rjup) 10.3123 (Rearth)
Mass (Mjup / Me): 20.0000 (Mjup) 6358.7600 (Mearth)
Semi Major Axis / Orbital Distance Calculated 3.5300 (AU) 3.5300 (AU Est.)
Eccentricity : 0.2600
Orbital Period(Yrs) 20.0953
Orbital Period(Observed/Estimated) 7340.00 (Days Obs.) 8564.60 (Days Est.)
Star Radiation at Atmospheric Boundary: 0.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 18.2 (K)
Blackbody T 0.3(K) 17.1 (K)
Blackbody T 0.7(K) 13.8 (K)
Tidally Locked Blackbody T 0.1(K) 21.6 (K)
Tidally Locked Blackbody T 0.3(K) 20.3 (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 2140+16
Alternate Name :
Star Distance(LY) : 81.5
Stellar Radius(Rsun) : 0.1 (Rsun Measured)
Stellar Mass(Msun) : 0.1 (Msun Measured) 0.1 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 2300 (K)
Spectral type : M9
Metalicity : 0.0
Absolute Magnitude: 20.0
Apparent Magnitude: 22.0
Right Ascension(RA) 325.1208
Declination (DEC) 16.4217
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 2140+16 b
2M 2140+16 b

  • 2M 2140+16 b is an exoplanet orbiting the star 2M 2140+16, located about 81.5 light-years (25.0 pc) away from Solar System. Its discovery was publicly announced on 2010.
  • The host star 2M 2140+16 has apparent magnitude of 22.0, with absolute magnitude of 20.0.
  • It is 0.1 times more massive and 0.1 times bigger compared with our Sun. The surface temperature is 2300 with its spectral types of M9
  • In this planetary system, the extrasolar planet 2M 2140+16 b orbits around the star 2M 2140+16 every 7340.0 days with its orbital distance of 3.53 AU ( 528080483.6 km)
  • (Projected orbit of 2M 2140+16 b around its host star 2M 2140+16)


  • The Star 2M 2140+16 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.011 AU ( 1714406.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.016 AU ( 2369757.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.024 AU ( 3610986.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.036 AU ( 5313724.5 km)
  • Radiation at Planetary Boundary of 2M 2140+16 b : 0.03 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 2M 2140+16)



  • Kopparapu Recent Venus for Star 2M 2140+16 distance : 0.013 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star 2M 2140+16 distance : 0.017 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 2M 2140+16 distance : 0.016 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star 2M 2140+16 distance : 0.018 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star 2M 2140+16 distance : 0.034 AU
  • Kopparapu Outer Boundary for Early Mars for Star 2M 2140+16 distance : 0.036 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star 2M 2140+16)



  • Original Kopparapu Recent Venus for Star 2M 2140+16 distance : 0.013 AU
  • Original Kopparapu Runaway Greenhouse for Star 2M 2140+16 distance : 0.017 AU
  • Original Kopparapu Moist Greenhouse for Star 2M 2140+16 distance : 0.017 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 2M 2140+16 distance : 0.035 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star 2M 2140+16 distance : 0.036 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star 2M 2140+16)



    (Position in Stellar Map of star 2M 2140+16 and its Exoplanet 2M 2140+16 b)



    (Zoomed position in Stellar Map of star 2M 2140+16 and its Exoplanet 2M 2140+16 b (zoom level 3))