Imaginary Picture of Kepler-389 c

Display orbital revolution of Kepler-389 c around the hoststar Kepler-389
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Exoplanet Name : Kepler-389 c
Alternate Name : "2MASS J19275040+4454000 c, K02473.03, KIC 8753896 c, KOI-2473 c, KOI-2473.03, WISE J192750.39+445400.1 c"
Status : Confirmed
Radius (Rjup / Re): 0.1300 (Rjup) 1.4572 (Rearth)
Mass (Mjup / Me): 0.0120 (Mjup) 3.8269 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1100 (AU) 0.1100 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0397
Orbital Period(Observed/Estimated) 14.51 (Days Obs.) 15.09 (Days Est.)
Surface Gravity (G Earth) 1.8023
Star Radiation at Atmospheric Boundary: 30288.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 588.8 (K)
Blackbody T 0.3(K) 552.9 (K)
Blackbody T 0.7(K) 447.4 (K)
Tidally Locked Blackbody T 0.1(K) 700.2 (K)
Tidally Locked Blackbody T 0.3(K) 657.6 (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-389
Alternate Name : "2MASS J19275040+4454000, KIC 8753896, KOI-2473, WISE J192750.39+445400.1"
Star Distance(LY) : 2664.8
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5072 (K)
Spectral type : G7
UV portion[%]: 6.3
Visible portion[%]: 42.2
IR portion[%]: 51.5
Metalicity : -0.2
Absolute Magnitude: 4.9
Apparent Magnitude: 14.4
Right Ascension(RA) 291.9600
Declination (DEC) 44.9000
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-389+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-389%20c/
Kepler-389 c
Kepler-389 c

  • Kepler-389 c is an exoplanet orbiting the star Kepler-389, located about 2664.8 light-years (817.0 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-389 has apparent magnitude of 14.4, with absolute magnitude of 4.9.
  • It is 0.8 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 5072 with its spectral types of G7
  • In this planetary system, the extrasolar planet Kepler-389 c orbits around the star Kepler-389 every 14.5 days with its orbital distance of 0.11 AU ( 16455765.8 km)
  • (Projected orbit of Kepler-389 c around its host star Kepler-389)


  • The Star Kepler-389 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.375 AU ( 56025517.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.518 AU ( 77441906.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.789 AU ( 118004327.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.161 AU ( 173648536.8 km)
  • Radiation at Planetary Boundary of Kepler-389 c : 30288.30 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-389)



  • Kopparapu Recent Venus for Star Kepler-389 distance : 0.404 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-389 distance : 0.511 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-389 distance : 0.494 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-389 distance : 0.542 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-389 distance : 0.924 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-389 distance : 0.974 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-389)



  • Original Kopparapu Recent Venus for Star Kepler-389 distance : 0.400 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-389 distance : 0.527 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-389 distance : 0.529 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-389 distance : 0.939 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-389 distance : 0.977 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-389)



    (Position in Stellar Map of star Kepler-389 and its Exoplanet Kepler-389 c)



    (Zoomed position in Stellar Map of star Kepler-389 and its Exoplanet Kepler-389 c (zoom level 3))

    (Synthetic Spectrum of star Kepler-389*)
    *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