Imaginary Picture of Kepler-642 b

Display orbital revolution of Kepler-642 b around the hoststar Kepler-642
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Exoplanet Name : Kepler-642 b
Alternate Name : "2MASS J19352029+4237298 b, K00673.01, KIC 7124613 b, KOI-673 b, KOI-673.01, WISE J193520.29+423729.7 b"
Status : Confirmed
Radius (Rjup / Re): 0.2590 (Rjup) 2.9031 (Rearth)
Mass (Mjup / Me): 0.0224 (Mjup) 7.1085 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0589 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0121
Orbital Period(Observed/Estimated) 4.42 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.8434
Star Radiation at Atmospheric Boundary: 980765.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1404.5 (K)
Blackbody T 0.3(K) 1319.0 (K)
Blackbody T 0.7(K) 1067.2 (K)
Tidally Locked Blackbody T 0.1(K) 1670.3 (K)
Tidally Locked Blackbody T 0.3(K) 1568.6 (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-642
Alternate Name : "2MASS J19352029+4237298, KIC 7124613, KOI-673, WISE J193520.29+423729.7"
Star Distance(LY) : 2547.6
Stellar Radius(Rsun) : 1.3 (Rsun Measured)
Stellar Mass(Msun) : 1.4 (Msun Measured) 1.4 (Msun Estimated)
Star Age : 1.9 (GY)
Temperature : 6380 (K)
Spectral type : F6
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.1
Absolute Magnitude: 2.9
Apparent Magnitude: 12.4
Right Ascension(RA) 293.8346
Declination (DEC) 42.6250
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Timothy D. Morton, Stephen T. Bryson, Jeffrey L. Coughlin, Jason F. Rowe, Ganesh Ravichandran, Erik A. Petigura, Michael R. Haas, and Natalie M. Batalha"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 555 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-642+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-642%20b/
Kepler-642 b
Kepler-642 b

  • Kepler-642 b is an exoplanet orbiting the star Kepler-642, located about 2547.6 light-years (781.1 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-642 has apparent magnitude of 12.4, with absolute magnitude of 2.9.
  • It is 1.4 times more massive and 1.3 times bigger compared with our Sun. The surface temperature is 6380 with its spectral types of F6
  • In this planetary system, the extrasolar planet Kepler-642 b orbits around the star Kepler-642 every 4.4 days with its orbital distance of 0.06 AU ( 8817719.2 km)
  • (Projected orbit of Kepler-642 b around its host star Kepler-642)


  • The Star Kepler-642 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.142 AU ( 170832005.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.578 AU ( 236134474.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.405 AU ( 359816683.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.539 AU ( 529486011.8 km)
  • Radiation at Planetary Boundary of Kepler-642 b : 980765.91 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-642)



  • Kopparapu Recent Venus for Star Kepler-642 distance : 1.141 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-642 distance : 1.445 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-642 distance : 1.396 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-642 distance : 1.529 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-642 distance : 2.519 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-642 distance : 2.657 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-642)



  • Original Kopparapu Recent Venus for Star Kepler-642 distance : 1.158 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-642 distance : 1.482 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-642 distance : 1.532 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-642 distance : 2.565 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-642 distance : 2.667 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-642)



    (Position in Stellar Map of star Kepler-642 and its Exoplanet Kepler-642 b)



    (Zoomed position in Stellar Map of star Kepler-642 and its Exoplanet Kepler-642 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-642*)
    *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