Imaginary Picture of Kepler-1856 b

Display orbital revolution of Kepler-1856 b around the hoststar Kepler-1856
/
Exoplanet Name : Kepler-1856 b
Alternate Name : "KOI-2543 b, KOI-2543.01"
Status : Confirmed
Radius (Rjup / Re): 0.1547 (Rjup) 1.7344 (Rearth)
Mass (Mjup / Me): 0.0138 (Mjup) 4.4028 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0215 (AU) 0.0215 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0036
Orbital Period(Observed/Estimated) 1.30 (Days Obs.) 1.30 (Days Est.)
Surface Gravity (G Earth) 1.4636
Star Radiation at Atmospheric Boundary: 1368499.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1526.5 (K)
Blackbody T 0.3(K) 1433.6 (K)
Blackbody T 0.7(K) 1159.9 (K)
Tidally Locked Blackbody T 0.1(K) 1815.4 (K)
Tidally Locked Blackbody T 0.3(K) 1704.8 (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-1856
Alternate Name : "KIC 12469800, KOI-2543"
Star Distance(LY) : 2768.3
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 10.9 (GY)
Temperature : 4864 (K)
Spectral type : K2V
UV portion[%]: 2.6
Visible portion[%]: 35.9
IR portion[%]: 61.5
Metalicity : 0.1
Absolute Magnitude: 6.0
Apparent Magnitude: 15.6
Right Ascension(RA) 295.9092
Declination (DEC) 51.3479
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-1856 b
Kepler-1856 b

  • Kepler-1856 b is an exoplanet orbiting the star Kepler-1856, located about 2768.3 light-years (848.8 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1856 has apparent magnitude of 15.6, with absolute magnitude of 6.0.
  • It is 0.8 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 4864 with its spectral types of K2V
  • In this planetary system, the extrasolar planet Kepler-1856 b orbits around the star Kepler-1856 every 1.3 days with its orbital distance of 0.02 AU ( 3216354.2 km)
  • (Projected orbit of Kepler-1856 b around its host star Kepler-1856)


  • The Star Kepler-1856 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.492 AU ( 73606552.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.680 AU ( 101743491.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.036 AU ( 155034565.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.525 AU ( 228140154.3 km)
  • Radiation at Planetary Boundary of Kepler-1856 b : 1368499.43 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1856)



  • Kopparapu Recent Venus for Star Kepler-1856 distance : 0.536 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1856 distance : 0.678 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1856 distance : 0.655 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1856 distance : 0.719 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1856 distance : 1.236 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1856 distance : 1.304 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1856)



  • Original Kopparapu Recent Venus for Star Kepler-1856 distance : 0.529 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1856 distance : 0.699 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1856 distance : 0.700 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1856 distance : 1.257 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1856 distance : 1.307 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1856)



    (Position in Stellar Map of star Kepler-1856 and its Exoplanet Kepler-1856 b)



    (Zoomed position in Stellar Map of star Kepler-1856 and its Exoplanet Kepler-1856 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1856*)
    *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