Imaginary Picture of Kepler-1816 b

Display orbital revolution of Kepler-1816 b around the hoststar Kepler-1816
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Exoplanet Name : Kepler-1816 b
Alternate Name : "KOI-2290 b, KOI-2290.01"
Status : Confirmed
Radius (Rjup / Re): 0.1756 (Rjup) 1.9680 (Rearth)
Mass (Mjup / Me): 0.0156 (Mjup) 4.9516 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.3648 (AU) 0.3648 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.2505
Orbital Period(Observed/Estimated) 91.50 (Days Obs.) 89.81 (Days Est.)
Surface Gravity (G Earth) 1.2785
Star Radiation at Atmospheric Boundary: 3002.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 330.4 (K)
Blackbody T 0.3(K) 310.3 (K)
Blackbody T 0.7(K) 251.0 (K)
Tidally Locked Blackbody T 0.1(K) 392.9 (K)
Tidally Locked Blackbody T 0.3(K) 369.0 (K)
Size Class: super-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-1816
Alternate Name : "12121570, KOI-2290"
Star Distance(LY) : 1428.0
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 0.7 (GY)
Temperature : 4906 (K)
Spectral type : K1V
UV portion[%]: 2.8
Visible portion[%]: 36.2
IR portion[%]: 61.0
Metalicity : -0.2
Absolute Magnitude: 6.5
Apparent Magnitude: 14.7
Right Ascension(RA) 296.8510
Declination (DEC) 50.6989
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-1816 b
Kepler-1816 b

  • Kepler-1816 b is an exoplanet orbiting the star Kepler-1816, located about 1428.0 light-years (437.8 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1816 has apparent magnitude of 14.7, with absolute magnitude of 6.5.
  • It is 0.8 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 4906 with its spectral types of K1V
  • In this planetary system, the extrasolar planet Kepler-1816 b orbits around the star Kepler-1816 every 91.5 days with its orbital distance of 0.36 AU ( 54573303.2 km)
  • (Projected orbit of Kepler-1816 b around its host star Kepler-1816)


  • The Star Kepler-1816 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.391 AU ( 58502505.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.541 AU ( 80865750.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.824 AU ( 123221508.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.212 AU ( 181325847.7 km)
  • Radiation at Planetary Boundary of Kepler-1816 b : 3002.81 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1816)



  • Kopparapu Recent Venus for Star Kepler-1816 distance : 0.425 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1816 distance : 0.538 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1816 distance : 0.520 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1816 distance : 0.570 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1816 distance : 0.979 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1816 distance : 1.032 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1816)



  • Original Kopparapu Recent Venus for Star Kepler-1816 distance : 0.420 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1816 distance : 0.555 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1816 distance : 0.556 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1816 distance : 0.995 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1816 distance : 1.035 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1816)



    (Position in Stellar Map of star Kepler-1816 and its Exoplanet Kepler-1816 b)



    (Zoomed position in Stellar Map of star Kepler-1816 and its Exoplanet Kepler-1816 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1816*)
    *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