Imaginary Picture of Kepler-1748 b

Display orbital revolution of Kepler-1748 b around the hoststar Kepler-1748
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Exoplanet Name : Kepler-1748 b
Alternate Name : "KOI-1398 b, KOI-1398.01"
Status : Confirmed
Radius (Rjup / Re): 0.2420 (Rjup) 2.7127 (Rearth)
Mass (Mjup / Me): 0.0210 (Mjup) 6.6739 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0615 (AU) 0.0615 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0159
Orbital Period(Observed/Estimated) 5.82 (Days Obs.) 5.78 (Days Est.)
Surface Gravity (G Earth) 0.9069
Star Radiation at Atmospheric Boundary: 160573.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 893.4 (K)
Blackbody T 0.3(K) 839.0 (K)
Blackbody T 0.7(K) 678.9 (K)
Tidally Locked Blackbody T 0.1(K) 1062.5 (K)
Tidally Locked Blackbody T 0.3(K) 997.8 (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-1748
Alternate Name : "9269281, KOI-1398"
Star Distance(LY) : 3533.2
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5376 (K)
Spectral type : G7V
UV portion[%]: 6.3
Visible portion[%]: 42.2
IR portion[%]: 51.5
Metalicity : -0.2
Absolute Magnitude: 5.8
Apparent Magnitude: 16.0
Right Ascension(RA) 285.9679
Declination (DEC) 45.7391
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-1748 b
Kepler-1748 b

  • Kepler-1748 b is an exoplanet orbiting the star Kepler-1748, located about 3533.2 light-years (1083.3 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1748 has apparent magnitude of 16.0, with absolute magnitude of 5.8.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5376 with its spectral types of G7V
  • In this planetary system, the extrasolar planet Kepler-1748 b orbits around the star Kepler-1748 every 5.8 days with its orbital distance of 0.06 AU ( 9200269.0 km)
  • (Projected orbit of Kepler-1748 b around its host star Kepler-1748)


  • The Star Kepler-1748 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.482 AU ( 72121932.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.666 AU ( 99691359.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.015 AU ( 151907569.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.494 AU ( 223538643.2 km)
  • Radiation at Planetary Boundary of Kepler-1748 b : 160573.20 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1748)



  • Kopparapu Recent Venus for Star Kepler-1748 distance : 0.511 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1748 distance : 0.648 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1748 distance : 0.626 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1748 distance : 0.686 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1748 distance : 1.158 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1748 distance : 1.221 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1748)



  • Original Kopparapu Recent Venus for Star Kepler-1748 distance : 0.508 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1748 distance : 0.666 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1748 distance : 0.673 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1748 distance : 1.178 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1748 distance : 1.225 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1748)



    (Position in Stellar Map of star Kepler-1748 and its Exoplanet Kepler-1748 b)



    (Zoomed position in Stellar Map of star Kepler-1748 and its Exoplanet Kepler-1748 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1748*)
    *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