Imaginary Picture of Kepler-90 f

Display orbital revolution of Kepler-90 f around the hoststar KOI-351
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Exoplanet Name : Kepler-90 f
Alternate Name : "KOI-351 f, KIC 11442793 f, 2MASS J18574403+4918185 f, K00351.07, KOI-351.07, Kepler-90 f, WISE J185744.03+491818.5 f"
Status : Confirmed
Radius (Rjup / Re): 0.2570 (Rjup) 2.8807 (Rearth)
Mass (Mjup / Me): 0.0222 (Mjup) 7.0575 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.4800 (AU) 0.4800 (AU Est.)
Eccentricity : 0.0100
Orbital Period(Yrs) 0.3420
Orbital Period(Observed/Estimated) 124.91 (Days Obs.) 110.88 (Days Est.)
Surface Gravity (G Earth) 0.8504
Star Radiation at Atmospheric Boundary: 10217.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 448.7 (K)
Blackbody T 0.3(K) 421.4 (K)
Blackbody T 0.7(K) 341.0 (K)
Tidally Locked Blackbody T 0.1(K) 533.6 (K)
Tidally Locked Blackbody T 0.3(K) 501.1 (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 : KOI-351
Alternate Name : "KOI-351, 2MASS J18574403+4918185, KIC 11442793, Kepler-90, WISE J185744.03+491818.5"
Star Distance(LY) : 2765.2
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6015 (K)
Spectral type : G0
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : -0.1
Absolute Magnitude: 4.4
Apparent Magnitude: 14.0
Right Ascension(RA) 284.4335
Declination (DEC) 49.3052
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-90 f
Kepler-90 f

  • Kepler-90 f is an exoplanet orbiting the star KOI-351, located about 2765.2 light-years (847.8 pc) away from Solar System. Its discovery was publicly announced on 2013.
  • The host star KOI-351 has apparent magnitude of 14.0, with absolute magnitude of 4.4.
  • It is 1.2 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6015 with its spectral types of G0
  • In this planetary system, the extrasolar planet Kepler-90 f orbits around the star KOI-351 every 124.9 days with its orbital distance of 0.48 AU ( 71806977.9 km)
  • (Projected orbit of Kepler-90 f around its host star KOI-351)


  • The Star KOI-351 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.949 AU ( 141995152.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.312 AU ( 196274408.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.999 AU ( 299078763.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.942 AU ( 440107502.3 km)
  • Radiation at Planetary Boundary of Kepler-90 f : 10217.70 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star KOI-351)



  • Kopparapu Recent Venus for Star KOI-351 distance : 0.970 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star KOI-351 distance : 1.228 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star KOI-351 distance : 1.186 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star KOI-351 distance : 1.300 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star KOI-351 distance : 2.156 AU
  • Kopparapu Outer Boundary for Early Mars for Star KOI-351 distance : 2.274 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star KOI-351)



  • Original Kopparapu Recent Venus for Star KOI-351 distance : 0.976 AU
  • Original Kopparapu Runaway Greenhouse for Star KOI-351 distance : 1.261 AU
  • Original Kopparapu Moist Greenhouse for Star KOI-351 distance : 1.291 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star KOI-351 distance : 2.194 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star KOI-351 distance : 2.282 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star KOI-351)



    (Position in Stellar Map of star KOI-351 and its Exoplanet Kepler-90 f)



    (Zoomed position in Stellar Map of star KOI-351 and its Exoplanet Kepler-90 f (zoom level 3))

    (Synthetic Spectrum of star KOI-351*)
    *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