Imaginary Picture of Kepler-709 b

Display orbital revolution of Kepler-709 b around the hoststar Kepler-709
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Exoplanet Name : Kepler-709 b
Alternate Name : "2MASS J19282524+4222491 b, K00867.01, KIC 6863998 b, KOI-867 b, KOI-867.01, WISE J192825.26+422249.1 b"
Status : Confirmed
Radius (Rjup / Re): 0.2610 (Rjup) 2.9255 (Rearth)
Mass (Mjup / Me): 0.0225 (Mjup) 7.1596 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.1158 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0440
Orbital Period(Observed/Estimated) 16.09 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.8365
Star Radiation at Atmospheric Boundary: 39605.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 629.6 (K)
Blackbody T 0.3(K) 591.3 (K)
Blackbody T 0.7(K) 478.4 (K)
Tidally Locked Blackbody T 0.1(K) 748.8 (K)
Tidally Locked Blackbody T 0.3(K) 703.2 (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-709
Alternate Name : "2MASS J19282524+4222491, KIC 6863998, KOI-867, WISE J192825.26+422249.1"
Star Distance(LY) : 2168.2
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 4.9 (GY)
Temperature : 5239 (K)
Spectral type : K1
UV portion[%]: 5.3
Visible portion[%]: 40.7
IR portion[%]: 54.0
Metalicity : -0.1
Absolute Magnitude: 4.6
Apparent Magnitude: 13.8
Right Ascension(RA) 292.1052
Declination (DEC) 42.3803
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 603 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-709+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-709%20b/
Kepler-709 b
Kepler-709 b

  • Kepler-709 b is an exoplanet orbiting the star Kepler-709, located about 2168.2 light-years (664.8 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-709 has apparent magnitude of 13.8, with absolute magnitude of 4.6.
  • It is 0.8 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5239 with its spectral types of K1
  • In this planetary system, the extrasolar planet Kepler-709 b orbits around the star Kepler-709 every 16.1 days with its orbital distance of 0.12 AU ( 17318640.3 km)
  • (Projected orbit of Kepler-709 b around its host star Kepler-709)


  • The Star Kepler-709 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.451 AU ( 67425490.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.623 AU ( 93199648.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.949 AU ( 142015639.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.397 AU ( 208982234.2 km)
  • Radiation at Planetary Boundary of Kepler-709 b : 39605.92 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-709)



  • Kopparapu Recent Venus for Star Kepler-709 distance : 0.482 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-709 distance : 0.610 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-709 distance : 0.589 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-709 distance : 0.646 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-709 distance : 1.096 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-709 distance : 1.156 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-709)



  • Original Kopparapu Recent Venus for Star Kepler-709 distance : 0.478 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-709 distance : 0.628 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-709 distance : 0.632 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-709 distance : 1.114 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-709 distance : 1.159 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-709)



    (Position in Stellar Map of star Kepler-709 and its Exoplanet Kepler-709 b)



    (Zoomed position in Stellar Map of star Kepler-709 and its Exoplanet Kepler-709 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-709*)
    *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