Imaginary Picture of Kepler-1824 b

Display orbital revolution of Kepler-1824 b around the hoststar Kepler-1824
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Exoplanet Name : Kepler-1824 b
Alternate Name : "KOI-2321 b, KOI-2321.01"
Status : Confirmed
Radius (Rjup / Re): 0.2124 (Rjup) 2.3812 (Rearth)
Mass (Mjup / Me): 0.0186 (Mjup) 5.9120 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.4267 (AU) 0.4267 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.2618
Orbital Period(Observed/Estimated) 95.61 (Days Obs.) 91.06 (Days Est.)
Surface Gravity (G Earth) 1.0426
Star Radiation at Atmospheric Boundary: 14450.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 489.3 (K)
Blackbody T 0.3(K) 459.5 (K)
Blackbody T 0.7(K) 371.8 (K)
Tidally Locked Blackbody T 0.1(K) 581.9 (K)
Tidally Locked Blackbody T 0.3(K) 546.5 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-1824
Alternate Name : "KIC 5978559, KOI-2321"
Star Distance(LY) : 3392.3
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 0.3 (GY)
Temperature : 6319 (K)
Spectral type : F7V
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : 0.2
Absolute Magnitude: 4.9
Apparent Magnitude: 15.0
Right Ascension(RA) 296.7072
Declination (DEC) 41.2037
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-1824 b
Kepler-1824 b

  • Kepler-1824 b is an exoplanet orbiting the star Kepler-1824, located about 3392.3 light-years (1040.1 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1824 has apparent magnitude of 15.0, with absolute magnitude of 4.9.
  • It is 1.2 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6319 with its spectral types of F7V
  • In this planetary system, the extrasolar planet Kepler-1824 b orbits around the star Kepler-1824 every 95.6 days with its orbital distance of 0.43 AU ( 63833411.4 km)
  • (Projected orbit of Kepler-1824 b around its host star Kepler-1824)


  • The Star Kepler-1824 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.003 AU ( 150111101.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.387 AU ( 207492771.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.113 AU ( 316173065.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.110 AU ( 465262516.4 km)
  • Radiation at Planetary Boundary of Kepler-1824 b : 14450.04 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1824)



  • Kopparapu Recent Venus for Star Kepler-1824 distance : 1.006 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1824 distance : 1.275 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1824 distance : 1.231 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1824 distance : 1.349 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1824 distance : 2.224 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1824 distance : 2.346 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1824)



  • Original Kopparapu Recent Venus for Star Kepler-1824 distance : 1.019 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1824 distance : 1.307 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1824 distance : 1.349 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1824 distance : 2.264 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1824 distance : 2.354 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1824)



    (Position in Stellar Map of star Kepler-1824 and its Exoplanet Kepler-1824 b)



    (Zoomed position in Stellar Map of star Kepler-1824 and its Exoplanet Kepler-1824 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1824*)
    *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