Imaginary Picture of Kepler-289 d

Display orbital revolution of Kepler-289 d around the hoststar Kepler-289
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Exoplanet Name : Kepler-289 d
Alternate Name : "PH3 d, 2MASS J19495168+4252582 d, KIC 7303287 d, KOI-1353 d, WISE J194951.68+425258.2 d"
Status : Confirmed
Radius (Rjup / Re): 0.2390 (Rjup) 2.6790 (Rearth)
Mass (Mjup / Me): 0.0130 (Mjup) 4.1332 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.3300 (AU) 0.3300 (AU Est.)
Eccentricity : 0.0033
Orbital Period(Yrs) 0.1809
Orbital Period(Observed/Estimated) 66.06 (Days Obs.) 66.63 (Days Est.)
Surface Gravity (G Earth) 0.5759
Star Radiation at Atmospheric Boundary: 14778.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 492.1 (K)
Blackbody T 0.3(K) 462.1 (K)
Blackbody T 0.7(K) 373.9 (K)
Tidally Locked Blackbody T 0.1(K) 585.2 (K)
Tidally Locked Blackbody T 0.3(K) 549.6 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Radial Velocity
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-289
Alternate Name : "PH3, 2MASS J19495168+4252582, KIC 7303287, KOI-1353, WISE J194951.68+425258.2"
Star Distance(LY) : 2296.5
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 0.7 (GY)
Temperature : 5989 (K)
Spectral type : G1
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.1
Absolute Magnitude: 3.7
Apparent Magnitude: 12.9
Right Ascension(RA) 297.4653
Declination (DEC) 42.8828
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title 0
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK
Open Exoplanet Database Link 0
Kepler-289 d
Kepler-289 d

  • Kepler-289 d is an exoplanet orbiting the star Kepler-289, located about 2296.5 light-years (704.1 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-289 has apparent magnitude of 12.9, with absolute magnitude of 3.7.
  • It is 1.1 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5989 with its spectral types of G1
  • In this planetary system, the extrasolar planet Kepler-289 d orbits around the star Kepler-289 every 66.1 days with its orbital distance of 0.33 AU ( 49367297.3 km)
  • (Projected orbit of Kepler-289 d around its host star Kepler-289)


  • The Star Kepler-289 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.785 AU ( 117405410.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.085 AU ( 162284959.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.653 AU ( 247286364.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.432 AU ( 363892718.4 km)
  • Radiation at Planetary Boundary of Kepler-289 d : 14778.72 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-289)



  • Kopparapu Recent Venus for Star Kepler-289 distance : 0.803 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-289 distance : 1.017 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-289 distance : 0.982 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-289 distance : 1.077 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-289 distance : 1.786 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-289 distance : 1.884 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-289)



  • Original Kopparapu Recent Venus for Star Kepler-289 distance : 0.808 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-289 distance : 1.044 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-289 distance : 1.069 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-289 distance : 1.818 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-289 distance : 1.891 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-289)



    (Position in Stellar Map of star Kepler-289 and its Exoplanet Kepler-289 d)



    (Zoomed position in Stellar Map of star Kepler-289 and its Exoplanet Kepler-289 d (zoom level 3))

    (Synthetic Spectrum of star Kepler-289*)
    *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