Imaginary Picture of Kepler-1420 b

Display orbital revolution of Kepler-1420 b around the hoststar Kepler-1420
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Exoplanet Name : Kepler-1420 b
Alternate Name : "2MASS J19444891+4246401 b, K03056.01, KIC 7216284 b, KOI-3056 b, KOI-3056.01, WISE J194448.92+424640.1 b"
Status : Confirmed
Radius (Rjup / Re): 0.1140 (Rjup) 1.2778 (Rearth)
Mass (Mjup / Me): 0.0075 (Mjup) 2.3693 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0651 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0183
Orbital Period(Observed/Estimated) 6.70 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.4510
Star Radiation at Atmospheric Boundary: 191094.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 933.2 (K)
Blackbody T 0.3(K) 876.3 (K)
Blackbody T 0.7(K) 709.0 (K)
Tidally Locked Blackbody T 0.1(K) 1109.7 (K)
Tidally Locked Blackbody T 0.3(K) 1042.1 (K)
Size Class: super-Earth-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-1420
Alternate Name : "2MASS J19444891+4246401, KIC 7216284, KOI-3056, WISE J194448.92+424640.1"
Star Distance(LY) : 3449.0
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 4.9 (GY)
Temperature : 5288 (K)
Spectral type : K0
UV portion[%]: 5.7
Visible portion[%]: 41.3
IR portion[%]: 53.0
Metalicity : -0.1
Absolute Magnitude: 4.3
Apparent Magnitude: 14.4
Right Ascension(RA) 296.2038
Declination (DEC) 42.7778
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. Batalha2"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 428 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-1420+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1420%20b/
Kepler-1420 b
Kepler-1420 b

  • Kepler-1420 b is an exoplanet orbiting the star Kepler-1420, located about 3449.0 light-years (1057.5 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1420 has apparent magnitude of 14.4, with absolute magnitude of 4.3.
  • It is 0.8 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5288 with its spectral types of K0
  • In this planetary system, the extrasolar planet Kepler-1420 b orbits around the star Kepler-1420 every 6.7 days with its orbital distance of 0.07 AU ( 9738733.1 km)
  • (Projected orbit of Kepler-1420 b around its host star Kepler-1420)


  • The Star Kepler-1420 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.557 AU ( 83283029.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.770 AU ( 115118911.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.173 AU ( 175415745.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.726 AU ( 258131954.4 km)
  • Radiation at Planetary Boundary of Kepler-1420 b : 191094.20 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1420)



  • Kopparapu Recent Venus for Star Kepler-1420 distance : 0.593 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1420 distance : 0.751 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1420 distance : 0.726 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1420 distance : 0.796 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1420 distance : 1.347 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1420 distance : 1.421 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1420)



  • Original Kopparapu Recent Venus for Star Kepler-1420 distance : 0.589 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1420 distance : 0.774 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1420 distance : 0.780 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1420 distance : 1.370 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1420 distance : 1.425 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1420)



    (Position in Stellar Map of star Kepler-1420 and its Exoplanet Kepler-1420 b)



    (Zoomed position in Stellar Map of star Kepler-1420 and its Exoplanet Kepler-1420 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1420*)
    *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