Imaginary Picture of Kepler-142 d
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Exoplanet Name : Kepler-142 d
Alternate Name :
Radius (Rjup / Re): 0.1930 (Rjup) 2.1633 (Rearth)
Mass (Mjup / Me): 0.0170 (Mjup) 5.4073 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.2420 (AU) 0.2420 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.1145
Orbital Period(Observed/Estimated) 41.81 (Days Obs.) 43.70 (Days Est.)
Star Radiation at Atmospheric Boundary: 37957.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 623.0 (K)
Blackbody T 0.3(K) 585.0 (K)
Blackbody T 0.7(K) 473.4 (K)
Tidally Locked Blackbody T 0.1(K) 740.8 (K)
Tidally Locked Blackbody T 0.3(K) 695.7 (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 : Kepler-142
Alternate Name :
Star Distance(LY) : 0.0
Stellar Radius(Rsun) : 1.3 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5790 (K)
Spectral type : G2
Metalicity : -0.3
Absolute Magnitude: 25.0
Apparent Magnitude: 12.1
Right Ascension(RA) 295.1189
Declination (DEC) 48.4813
Hubble Space Telescope Guide Star Catalog (GSC) ID 0
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK 0
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-142%20d/
Kepler-142 d
Kepler-142 d

  • Kepler-142 d is an exoplanet orbiting the star Kepler-142. Its discovery was publicly announced on 2014.
  • The host star Kepler-142 has apparent magnitude of 12.1, with absolute magnitude of 25.0.
  • It is 1.0 times more massive and 1.3 times bigger compared with our Sun. The surface temperature is 5790 with its spectral types of G2
  • In this planetary system, the extrasolar planet Kepler-142 d orbits around the star Kepler-142 every 41.8 days with its orbital distance of 0.24 AU ( 36202684.7 km)
  • (Projected orbit of Kepler-142 d around its host star Kepler-142)


  • The Star Kepler-142 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.922 AU ( 137980896.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.275 AU ( 190725657.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.943 AU ( 290623693.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.859 AU ( 427665496.9 km)
  • Radiation at Planetary Boundary of Kepler-142 d : 37957.34 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-142)



  • Kopparapu Recent Venus for Star Kepler-142 distance : 0.955 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-142 distance : 1.210 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-142 distance : 1.168 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-142 distance : 1.281 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-142 distance : 2.136 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-142 distance : 2.252 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-142)



  • Original Kopparapu Recent Venus for Star Kepler-142 distance : 0.957 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-142 distance : 1.243 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-142 distance : 1.266 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-142 distance : 2.173 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-142 distance : 2.260 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-142)



    (Position in Stellar Map of star Kepler-142 and its Exoplanet Kepler-142 d)



    (Zoomed position in Stellar Map of star Kepler-142 and its Exoplanet Kepler-142 d (zoom level 3))