Imaginary Picture of Kepler-1749 b

Display orbital revolution of Kepler-1749 b around the hoststar Kepler-1749
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Exoplanet Name : Kepler-1749 b
Alternate Name : "KOI-1408 b, KOI-1408.01"
Status : Confirmed
Radius (Rjup / Re): 0.1439 (Rjup) 1.6130 (Rearth)
Mass (Mjup / Me): 0.0129 (Mjup) 4.1154 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0956 (AU) 0.0956 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0398
Orbital Period(Observed/Estimated) 14.53 (Days Obs.) 13.29 (Days Est.)
Surface Gravity (G Earth) 1.5818
Star Radiation at Atmospheric Boundary: 16692.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 507.3 (K)
Blackbody T 0.3(K) 476.4 (K)
Blackbody T 0.7(K) 385.5 (K)
Tidally Locked Blackbody T 0.1(K) 603.3 (K)
Tidally Locked Blackbody T 0.3(K) 566.6 (K)
Size Class: super-Earth-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-1749
Alternate Name : "9150827, KOI-1408"
Star Distance(LY) : 874.8
Stellar Radius(Rsun) : 0.6 (Rsun Measured)
Stellar Mass(Msun) : 0.7 (Msun Measured) 0.6 (Msun Estimated)
Star Age : 13.9 (GY)
Temperature : 4238 (K)
Spectral type : K7V
UV portion[%]: 0.9
Visible portion[%]: 27.2
IR portion[%]: 72.0
Metalicity : 0.1
Absolute Magnitude: 7.8
Apparent Magnitude: 14.9
Right Ascension(RA) 290.2946
Declination (DEC) 45.5646
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-1749 b
Kepler-1749 b

  • Kepler-1749 b is an exoplanet orbiting the star Kepler-1749, located about 874.8 light-years (268.2 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1749 has apparent magnitude of 14.9, with absolute magnitude of 7.8.
  • It is 0.7 times more massive and 0.6 times bigger compared with our Sun. The surface temperature is 4238 with its spectral types of K7V
  • In this planetary system, the extrasolar planet Kepler-1749 b orbits around the star Kepler-1749 every 14.5 days with its orbital distance of 0.10 AU ( 14301556.4 km)
  • (Projected orbit of Kepler-1749 b around its host star Kepler-1749)


  • The Star Kepler-1749 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.242 AU ( 36146946.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.334 AU ( 49964526.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.509 AU ( 76134881.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.749 AU ( 112035813.1 km)
  • Radiation at Planetary Boundary of Kepler-1749 b : 16692.29 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1749)



  • Kopparapu Recent Venus for Star Kepler-1749 distance : 0.269 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1749 distance : 0.341 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1749 distance : 0.329 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1749 distance : 0.361 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1749 distance : 0.639 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1749 distance : 0.674 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1749)



  • Original Kopparapu Recent Venus for Star Kepler-1749 distance : 0.266 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1749 distance : 0.352 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1749 distance : 0.351 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1749 distance : 0.649 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1749 distance : 0.675 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1749)



    (Position in Stellar Map of star Kepler-1749 and its Exoplanet Kepler-1749 b)



    (Zoomed position in Stellar Map of star Kepler-1749 and its Exoplanet Kepler-1749 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1749*)
    *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