Imaginary Picture of Kepler-1739 b

Display orbital revolution of Kepler-1739 b around the hoststar Kepler-1739
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Exoplanet Name : Kepler-1739 b
Alternate Name : "KOI-1170 b, KOI-1170.01"
Status : Confirmed
Radius (Rjup / Re): 0.2168 (Rjup) 2.4301 (Rearth)
Mass (Mjup / Me): 0.0189 (Mjup) 6.0248 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0697 (AU) 0.0697 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0201
Orbital Period(Observed/Estimated) 7.34 (Days Obs.) 6.65 (Days Est.)
Surface Gravity (G Earth) 1.0202
Star Radiation at Atmospheric Boundary: 202902.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 947.2 (K)
Blackbody T 0.3(K) 889.6 (K)
Blackbody T 0.7(K) 719.8 (K)
Tidally Locked Blackbody T 0.1(K) 1126.5 (K)
Tidally Locked Blackbody T 0.3(K) 1057.9 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-1739
Alternate Name : "10482160, KOI-1170"
Star Distance(LY) : 2556.0
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 0.4 (GY)
Temperature : 5703 (K)
Spectral type : G3V
UV portion[%]: 7.6
Visible portion[%]: 44.4
IR portion[%]: 48.0
Metalicity : -0.5
Absolute Magnitude: 5.3
Apparent Magnitude: 14.8
Right Ascension(RA) 296.2321
Declination (DEC) 47.6790
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK
Open Exoplanet Database Link
Kepler-1739 b
Kepler-1739 b

  • Kepler-1739 b is an exoplanet orbiting the star Kepler-1739, located about 2556.0 light-years (783.7 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1739 has apparent magnitude of 14.8, with absolute magnitude of 5.3.
  • It is 1.0 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5703 with its spectral types of G3V
  • In this planetary system, the extrasolar planet Kepler-1739 b orbits around the star Kepler-1739 every 7.3 days with its orbital distance of 0.07 AU ( 10426971.6 km)
  • (Projected orbit of Kepler-1739 b around its host star Kepler-1739)


  • The Star Kepler-1739 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.614 AU ( 91882309.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.849 AU ( 127005363.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.294 AU ( 193528067.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.904 AU ( 284785028.7 km)
  • Radiation at Planetary Boundary of Kepler-1739 b : 202902.24 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1739)



  • Kopparapu Recent Venus for Star Kepler-1739 distance : 0.639 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1739 distance : 0.810 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1739 distance : 0.782 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1739 distance : 0.858 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1739 distance : 1.433 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1739 distance : 1.511 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1739)



  • Original Kopparapu Recent Venus for Star Kepler-1739 distance : 0.639 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1739 distance : 0.832 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1739 distance : 0.846 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1739 distance : 1.458 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1739 distance : 1.516 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1739)



    (Position in Stellar Map of star Kepler-1739 and its Exoplanet Kepler-1739 b)



    (Zoomed position in Stellar Map of star Kepler-1739 and its Exoplanet Kepler-1739 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1739*)
    *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