Imaginary Picture of Kepler-1620 b

Display orbital revolution of Kepler-1620 b around the hoststar Kepler-1620
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Exoplanet Name : Kepler-1620 b
Alternate Name : "2MASS J19490501+4655423 b, K04706.01, KIC 10026502 b, KOI-4706 b, KOI-4706.01, WISE J194905.01+465542.5 b"
Status : Confirmed
Radius (Rjup / Re): 0.1440 (Rjup) 1.6141 (Rearth)
Mass (Mjup / Me): 0.0130 (Mjup) 4.1180 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.4475 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.2791
Orbital Period(Observed/Estimated) 101.95 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.5806
Star Radiation at Atmospheric Boundary: 10118.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 447.6 (K)
Blackbody T 0.3(K) 420.4 (K)
Blackbody T 0.7(K) 340.1 (K)
Tidally Locked Blackbody T 0.1(K) 532.3 (K)
Tidally Locked Blackbody T 0.3(K) 499.9 (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-1620
Alternate Name : "2MASS J19490501+4655423, KIC 10026502, KOI-4706, WISE J194905.01+465542.5"
Star Distance(LY) : 1844.1
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 3.0 (GY)
Temperature : 6210 (K)
Spectral type : G0
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.0
Absolute Magnitude: 3.8
Apparent Magnitude: 12.6
Right Ascension(RA) 297.2709
Declination (DEC) 46.9284
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-1620+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1620%20b/
Kepler-1620 b
Kepler-1620 b

  • Kepler-1620 b is an exoplanet orbiting the star Kepler-1620, located about 1844.1 light-years (565.4 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1620 has apparent magnitude of 12.6, with absolute magnitude of 3.8.
  • It is 1.1 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 6210 with its spectral types of G0
  • In this planetary system, the extrasolar planet Kepler-1620 b orbits around the star Kepler-1620 every 102.0 days with its orbital distance of 0.45 AU ( 66941363.9 km)
  • (Projected orbit of Kepler-1620 b around its host star Kepler-1620)


  • The Star Kepler-1620 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.881 AU ( 131729160.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.217 AU ( 182084124.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.855 AU ( 277455910.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.729 AU ( 408288527.2 km)
  • Radiation at Planetary Boundary of Kepler-1620 b : 10118.45 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1620)



  • Kopparapu Recent Venus for Star Kepler-1620 distance : 0.889 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1620 distance : 1.126 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1620 distance : 1.087 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1620 distance : 1.192 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1620 distance : 1.968 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1620 distance : 2.076 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1620)



  • Original Kopparapu Recent Venus for Star Kepler-1620 distance : 0.898 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1620 distance : 1.155 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1620 distance : 1.189 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1620 distance : 2.004 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1620 distance : 2.084 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1620)



    (Position in Stellar Map of star Kepler-1620 and its Exoplanet Kepler-1620 b)



    (Zoomed position in Stellar Map of star Kepler-1620 and its Exoplanet Kepler-1620 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1620*)
    *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