Imaginary Picture of Kepler-1790 b

Display orbital revolution of Kepler-1790 b around the hoststar Kepler-1790
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Exoplanet Name : Kepler-1790 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.2801 (Rjup) 3.1396 (Rearth)
Mass (Mjup / Me): 0.0240 (Mjup) 7.6456 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.2049 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0865
Orbital Period(Observed/Estimated) 31.59 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.7756
Star Radiation at Atmospheric Boundary: 78554.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 747.2 (K)
Blackbody T 0.3(K) 701.7 (K)
Blackbody T 0.7(K) 567.7 (K)
Tidally Locked Blackbody T 0.1(K) 888.6 (K)
Tidally Locked Blackbody T 0.3(K) 834.5 (K)
Size Class: 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-1790
Alternate Name :
Star Distance(LY) : 3490.4
Stellar Radius(Rsun) : 1.4 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6108 (K)
Spectral type : G0
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : 0.0
Absolute Magnitude: 11.9
Apparent Magnitude: 22.0
Right Ascension(RA) 294.5667
Declination (DEC) 46.0758
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-1790 b
Kepler-1790 b

  • Kepler-1790 b is an exoplanet orbiting the star Kepler-1790, located about 3490.4 light-years (1070.2 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1790 has apparent magnitude of 22.0, with absolute magnitude of 11.9.
  • It is 1.1 times more massive and 1.4 times bigger compared with our Sun. The surface temperature is 6108 with its spectral types of G0
  • In this planetary system, the extrasolar planet Kepler-1790 b orbits around the star Kepler-1790 every 31.6 days with its orbital distance of 0.20 AU ( 30651674.9 km)
  • (Projected orbit of Kepler-1790 b around its host star Kepler-1790)


  • The Star Kepler-1790 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.123 AU ( 168062558.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.553 AU ( 232306375.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.366 AU ( 353983506.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.482 AU ( 520902236.8 km)
  • Radiation at Planetary Boundary of Kepler-1790 b : 78554.84 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1790)



  • Kopparapu Recent Venus for Star Kepler-1790 distance : 1.141 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1790 distance : 1.445 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1790 distance : 1.396 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1790 distance : 1.530 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1790 distance : 2.532 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1790 distance : 2.671 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1790)



  • Original Kopparapu Recent Venus for Star Kepler-1790 distance : 1.151 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1790 distance : 1.484 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1790 distance : 1.523 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1790 distance : 2.577 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1790 distance : 2.680 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1790)



    (Position in Stellar Map of star Kepler-1790 and its Exoplanet Kepler-1790 b)



    (Zoomed position in Stellar Map of star Kepler-1790 and its Exoplanet Kepler-1790 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1790*)
    *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