Imaginary Picture of KOI-1089.02

Display orbital revolution of KOI-1089.02 around the hoststar Kepler-418
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Exoplanet Name : KOI-1089.02
Alternate Name :
Status : Candidate
Radius (Rjup / Re): 0.6250 (Rjup) 7.0056 (Rearth)
Mass (Mjup / Me): 0.6400 (Mjup) 203.4803 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.1031 (AU Est.)
Eccentricity : 0.5000
Orbital Period(Yrs) 0.0335
Orbital Period(Observed/Estimated) 12.22 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 4.1460
Star Radiation at Atmospheric Boundary: 158351.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 890.3 (K)
Blackbody T 0.3(K) 836.1 (K)
Blackbody T 0.7(K) 676.5 (K)
Tidally Locked Blackbody T 0.1(K) 1058.8 (K)
Tidally Locked Blackbody T 0.3(K) 994.3 (K)
Size Class: sub-Jupiter-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-418
Alternate Name :
Star Distance(LY) : 3235.0
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 7.0 (GY)
Temperature : 5820 (K)
Spectral type : G2
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : -0.1
Absolute Magnitude: 5.0
Apparent Magnitude: 15.0
Right Ascension(RA) 294.4335
Declination (DEC) 38.3556
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 http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=KOI-1089&submit=SIMBAD+search
Open Exoplanet Database Link 0
KOI-1089.02
KOI-1089.02

  • KOI-1089.02 is an exoplanet orbiting the star Kepler-418, located about 3235.0 light-years (991.9 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-418 has apparent magnitude of 15.0, with absolute magnitude of 5.0.
  • It is 1.0 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5820 with its spectral types of G2
  • In this planetary system, the extrasolar planet KOI-1089.02 orbits around the star Kepler-418 every 12.2 days with its orbital distance of 0.10 AU ( 15426954.4 km)
  • (Projected orbit of KOI-1089.02 around its host star Kepler-418)


  • The Star Kepler-418 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.803 AU ( 120094025.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.110 AU ( 166001328.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.691 AU ( 252949288.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.488 AU ( 372225958.2 km)
  • Radiation at Planetary Boundary of KOI-1089.02 : 158351.37 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-418)



  • Kopparapu Recent Venus for Star Kepler-418 distance : 0.830 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-418 distance : 1.051 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-418 distance : 1.015 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-418 distance : 1.113 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-418 distance : 1.854 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-418 distance : 1.955 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-418)



  • Original Kopparapu Recent Venus for Star Kepler-418 distance : 0.832 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-418 distance : 1.080 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-418 distance : 1.100 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-418 distance : 1.887 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-418 distance : 1.962 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-418)



    (Position in Stellar Map of star Kepler-418 and its Exoplanet KOI-1089.02)



    (Zoomed position in Stellar Map of star Kepler-418 and its Exoplanet KOI-1089.02 (zoom level 3))

    (Synthetic Spectrum of star Kepler-418*)
    *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