Imaginary Picture of Kepler-1843 b

Display orbital revolution of Kepler-1843 b around the hoststar Kepler-1843
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Exoplanet Name : Kepler-1843 b
Alternate Name : "KOI-2479 b, KOI-2479.01"
Status : Confirmed
Radius (Rjup / Re): 0.2417 (Rjup) 2.7090 (Rearth)
Mass (Mjup / Me): 0.0210 (Mjup) 6.6654 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1710 (AU) 0.1710 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0699
Orbital Period(Observed/Estimated) 25.54 (Days Obs.) 25.57 (Days Est.)
Surface Gravity (G Earth) 0.9083
Star Radiation at Atmospheric Boundary: 172092.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 909.0 (K)
Blackbody T 0.3(K) 853.7 (K)
Blackbody T 0.7(K) 690.7 (K)
Tidally Locked Blackbody T 0.1(K) 1081.0 (K)
Tidally Locked Blackbody T 0.3(K) 1015.2 (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-1843
Alternate Name : "KIC 5963582, KOI-2479"
Star Distance(LY) : 2559.1
Stellar Radius(Rsun) : 2.3 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 10.8 (GY)
Temperature : 5281 (K)
Spectral type : G5IV
UV portion[%]: 5.6
Visible portion[%]: 41.2
IR portion[%]: 53.1
Metalicity : -0.2
Absolute Magnitude: 3.6
Apparent Magnitude: 13.1
Right Ascension(RA) 292.8853
Declination (DEC) 41.2792
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-1843 b
Kepler-1843 b

  • Kepler-1843 b is an exoplanet orbiting the star Kepler-1843, located about 2559.1 light-years (784.6 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1843 has apparent magnitude of 13.1, with absolute magnitude of 3.6.
  • It is 1.0 times more massive and 2.3 times bigger compared with our Sun. The surface temperature is 5281 with its spectral types of G5IV
  • In this planetary system, the extrasolar planet Kepler-1843 b orbits around the star Kepler-1843 every 25.5 days with its orbital distance of 0.17 AU ( 25581235.9 km)
  • (Projected orbit of Kepler-1843 b around its host star Kepler-1843)


  • The Star Kepler-1843 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.388 AU ( 207602479.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.918 AU ( 286960879.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.923 AU ( 437264875.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.301 AU ( 643454419.4 km)
  • Radiation at Planetary Boundary of Kepler-1843 b : 172092.30 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1843)



  • Kopparapu Recent Venus for Star Kepler-1843 distance : 1.480 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1843 distance : 1.874 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1843 distance : 1.810 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1843 distance : 1.985 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1843 distance : 3.361 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1843 distance : 3.545 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1843)



  • Original Kopparapu Recent Venus for Star Kepler-1843 distance : 1.469 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1843 distance : 1.929 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1843 distance : 1.944 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1843 distance : 3.418 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1843 distance : 3.555 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1843)



    (Position in Stellar Map of star Kepler-1843 and its Exoplanet Kepler-1843 b)



    (Zoomed position in Stellar Map of star Kepler-1843 and its Exoplanet Kepler-1843 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1843*)
    *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