Imaginary Picture of Kepler-1850 b

Display orbital revolution of Kepler-1850 b around the hoststar Kepler-1850
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Exoplanet Name : Kepler-1850 b
Alternate Name : "KOI-2527 b, KOI-2527.01"
Status : Confirmed
Radius (Rjup / Re): 0.0650 (Rjup) 0.7290 (Rearth)
Mass (Mjup / Me): 0.0010 (Mjup) 0.3199 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0206 (AU) 0.0206 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0038
Orbital Period(Observed/Estimated) 1.39 (Days Obs.) 1.31 (Days Est.)
Surface Gravity (G Earth) 0.6018
Star Radiation at Atmospheric Boundary: 496699.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1184.9 (K)
Blackbody T 0.3(K) 1112.7 (K)
Blackbody T 0.7(K) 900.3 (K)
Tidally Locked Blackbody T 0.1(K) 1409.0 (K)
Tidally Locked Blackbody T 0.3(K) 1323.2 (K)
Size Class: Earth-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-1850
Alternate Name : "KIC 7879433, KOI-2527"
Star Distance(LY) : 816.0
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.7 (Msun Measured) 0.6 (Msun Estimated)
Star Age : 13.8 (GY)
Temperature : 4337 (K)
Spectral type : K7V
UV portion[%]: 1.0
Visible portion[%]: 28.2
IR portion[%]: 70.8
Metalicity : -0.2
Absolute Magnitude: 7.4
Apparent Magnitude: 14.4
Right Ascension(RA) 287.1427
Declination (DEC) 43.6161
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-1850 b
Kepler-1850 b

  • Kepler-1850 b is an exoplanet orbiting the star Kepler-1850, located about 816.0 light-years (250.2 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1850 has apparent magnitude of 14.4, with absolute magnitude of 7.4.
  • It is 0.7 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4337 with its spectral types of K7V
  • In this planetary system, the extrasolar planet Kepler-1850 b orbits around the star Kepler-1850 every 1.4 days with its orbital distance of 0.02 AU ( 3081716.1 km)
  • (Projected orbit of Kepler-1850 b around its host star Kepler-1850)


  • The Star Kepler-1850 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.284 AU ( 42488337.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.393 AU ( 58729985.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.598 AU ( 89491501.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.880 AU ( 131690664.1 km)
  • Radiation at Planetary Boundary of Kepler-1850 b : 496699.38 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1850)



  • Kopparapu Recent Venus for Star Kepler-1850 distance : 0.315 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1850 distance : 0.399 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1850 distance : 0.386 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1850 distance : 0.424 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1850 distance : 0.745 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1850 distance : 0.786 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1850)



  • Original Kopparapu Recent Venus for Star Kepler-1850 distance : 0.311 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1850 distance : 0.412 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1850 distance : 0.412 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1850 distance : 0.757 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1850 distance : 0.788 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1850)



    (Position in Stellar Map of star Kepler-1850 and its Exoplanet Kepler-1850 b)



    (Zoomed position in Stellar Map of star Kepler-1850 and its Exoplanet Kepler-1850 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1850*)
    *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