Imaginary Picture of Kepler-789 b

Display orbital revolution of Kepler-789 b around the hoststar Kepler-789
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Exoplanet Name : Kepler-789 b
Alternate Name : "2MASS J19435403+3856479 b, K01205.01, KIC 3869014 b, KOI-1205 b, KOI-1205.01"
Status : Confirmed
Radius (Rjup / Re): 0.1890 (Rjup) 2.1185 (Rearth)
Mass (Mjup / Me): 0.0167 (Mjup) 5.3030 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0827 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0237
Orbital Period(Observed/Estimated) 8.64 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.1816
Star Radiation at Atmospheric Boundary: 564760.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1223.5 (K)
Blackbody T 0.3(K) 1149.0 (K)
Blackbody T 0.7(K) 929.7 (K)
Tidally Locked Blackbody T 0.1(K) 1455.0 (K)
Tidally Locked Blackbody T 0.3(K) 1366.4 (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-789
Alternate Name : "2MASS J19435403+3856479, KIC 3869014, KOI-1205"
Star Distance(LY) : 4826.7
Stellar Radius(Rsun) : 1.7 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 3.7 (GY)
Temperature : 5688 (K)
Spectral type : G1
UV portion[%]: 7.6
Visible portion[%]: 44.3
IR portion[%]: 48.1
Metalicity : -0.1
Absolute Magnitude: 2.6
Apparent Magnitude: 13.5
Right Ascension(RA) 295.9752
Declination (DEC) 38.9467
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 674 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-789+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-789%20b/
Kepler-789 b
Kepler-789 b

  • Kepler-789 b is an exoplanet orbiting the star Kepler-789, located about 4826.7 light-years (1479.9 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-789 has apparent magnitude of 13.5, with absolute magnitude of 2.6.
  • It is 1.0 times more massive and 1.7 times bigger compared with our Sun. The surface temperature is 5688 with its spectral types of G1
  • In this planetary system, the extrasolar planet Kepler-789 b orbits around the star Kepler-789 every 8.6 days with its orbital distance of 0.08 AU ( 12366985.4 km)
  • (Projected orbit of Kepler-789 b around its host star Kepler-789)


  • The Star Kepler-789 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.215 AU ( 181813606.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.680 AU ( 251313917.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.560 AU ( 382946794.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.767 AU ( 563522983.9 km)
  • Radiation at Planetary Boundary of Kepler-789 b : 564760.71 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-789)



  • Kopparapu Recent Venus for Star Kepler-789 distance : 1.266 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-789 distance : 1.604 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-789 distance : 1.549 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-789 distance : 1.698 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-789 distance : 2.839 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-789 distance : 2.994 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-789)



  • Original Kopparapu Recent Venus for Star Kepler-789 distance : 1.266 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-789 distance : 1.649 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-789 distance : 1.675 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-789 distance : 2.889 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-789 distance : 3.004 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-789)



    (Position in Stellar Map of star Kepler-789 and its Exoplanet Kepler-789 b)



    (Zoomed position in Stellar Map of star Kepler-789 and its Exoplanet Kepler-789 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-789*)
    *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