Imaginary Picture of Kepler-1785 b

Display orbital revolution of Kepler-1785 b around the hoststar Kepler-1785
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Exoplanet Name : Kepler-1785 b
Alternate Name : "KOI-2040 b, KOI-2040.01"
Status : Confirmed
Radius (Rjup / Re): 0.2412 (Rjup) 2.7041 (Rearth)
Mass (Mjup / Me): 0.0209 (Mjup) 6.6541 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1379 (AU) 0.1379 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0536
Orbital Period(Observed/Estimated) 19.59 (Days Obs.) 18.52 (Days Est.)
Surface Gravity (G Earth) 0.9100
Star Radiation at Atmospheric Boundary: 72088.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 731.3 (K)
Blackbody T 0.3(K) 686.8 (K)
Blackbody T 0.7(K) 555.7 (K)
Tidally Locked Blackbody T 0.1(K) 869.7 (K)
Tidally Locked Blackbody T 0.3(K) 816.7 (K)
Size Class: sub-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-1785
Alternate Name : "10480915, KOI-2040"
Star Distance(LY) : 2432.3
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.3 (GY)
Temperature : 5734 (K)
Spectral type : G2.5V
UV portion[%]: 7.7
Visible portion[%]: 44.6
IR portion[%]: 47.7
Metalicity : 0.0
Absolute Magnitude: 4.9
Apparent Magnitude: 14.2
Right Ascension(RA) 295.7922
Declination (DEC) 47.6001
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-1785 b
Kepler-1785 b

  • Kepler-1785 b is an exoplanet orbiting the star Kepler-1785, located about 2432.3 light-years (745.7 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1785 has apparent magnitude of 14.2, with absolute magnitude of 4.9.
  • It is 1.0 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5734 with its spectral types of G2.5V
  • In this planetary system, the extrasolar planet Kepler-1785 b orbits around the star Kepler-1785 every 19.6 days with its orbital distance of 0.14 AU ( 20629546.4 km)
  • (Projected orbit of Kepler-1785 b around its host star Kepler-1785)


  • The Star Kepler-1785 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.724 AU ( 108355693.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.001 AU ( 149775885.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.526 AU ( 228225304.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.245 AU ( 335843532.9 km)
  • Radiation at Planetary Boundary of Kepler-1785 b : 72088.09 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1785)



  • Kopparapu Recent Venus for Star Kepler-1785 distance : 0.753 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1785 distance : 0.953 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1785 distance : 0.921 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1785 distance : 1.009 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1785 distance : 1.685 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1785 distance : 1.777 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1785)



  • Original Kopparapu Recent Venus for Star Kepler-1785 distance : 0.753 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1785 distance : 0.980 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1785 distance : 0.996 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1785 distance : 1.715 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1785 distance : 1.783 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1785)



    (Position in Stellar Map of star Kepler-1785 and its Exoplanet Kepler-1785 b)



    (Zoomed position in Stellar Map of star Kepler-1785 and its Exoplanet Kepler-1785 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1785*)
    *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