Imaginary Picture of Kepler-1800 b

Display orbital revolution of Kepler-1800 b around the hoststar Kepler-1800
/
Exoplanet Name : Kepler-1800 b
Alternate Name : "KOI-2158 b, KOI-2158.02"
Status : Confirmed
Radius (Rjup / Re): 0.0889 (Rjup) 0.9968 (Rearth)
Mass (Mjup / Me): 0.0030 (Mjup) 0.9674 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0592 (AU) 0.0592 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0125
Orbital Period(Observed/Estimated) 4.56 (Days Obs.) 5.58 (Days Est.)
Surface Gravity (G Earth) 0.9736
Star Radiation at Atmospheric Boundary: 252013.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1000.0 (K)
Blackbody T 0.3(K) 939.1 (K)
Blackbody T 0.7(K) 759.8 (K)
Tidally Locked Blackbody T 0.1(K) 1189.2 (K)
Tidally Locked Blackbody T 0.3(K) 1116.8 (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-1800
Alternate Name : "5211199, KOI-2158"
Star Distance(LY) : 1143.0
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 1.3 (Msun Estimated)
Star Age : 14.0 (GY)
Temperature : 5211 (K)
Spectral type : G8V
UV portion[%]: 5.1
Visible portion[%]: 40.3
IR portion[%]: 54.6
Metalicity : -0.3
Absolute Magnitude: 5.5
Apparent Magnitude: 13.2
Right Ascension(RA) 297.6514
Declination (DEC) 40.3526
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-1800 b
Kepler-1800 b

  • Kepler-1800 b is an exoplanet orbiting the star Kepler-1800, located about 1143.0 light-years (350.5 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1800 has apparent magnitude of 13.2, with absolute magnitude of 5.5.
  • It is 0.9 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5211 with its spectral types of G8V
  • In this planetary system, the extrasolar planet Kepler-1800 b orbits around the star Kepler-1800 every 4.6 days with its orbital distance of 0.06 AU ( 8856193.9 km)
  • (Projected orbit of Kepler-1800 b around its host star Kepler-1800)


  • The Star Kepler-1800 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.581 AU ( 86973921.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.804 AU ( 120220689.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.225 AU ( 183189725.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.802 AU ( 269571705.9 km)
  • Radiation at Planetary Boundary of Kepler-1800 b : 252013.20 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1800)



  • Kopparapu Recent Venus for Star Kepler-1800 distance : 0.622 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1800 distance : 0.788 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1800 distance : 0.761 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1800 distance : 0.835 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1800 distance : 1.417 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1800 distance : 1.494 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1800)



  • Original Kopparapu Recent Venus for Star Kepler-1800 distance : 0.617 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1800 distance : 0.811 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1800 distance : 0.817 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1800 distance : 1.441 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1800 distance : 1.498 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1800)



    (Position in Stellar Map of star Kepler-1800 and its Exoplanet Kepler-1800 b)



    (Zoomed position in Stellar Map of star Kepler-1800 and its Exoplanet Kepler-1800 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1800*)
    *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