Imaginary Picture of Kepler-1757 b

Display orbital revolution of Kepler-1757 b around the hoststar Kepler-1757
/
Exoplanet Name : Kepler-1757 b
Alternate Name : "KOI-1591 b, KOI-1591.01"
Status : Confirmed
Radius (Rjup / Re): 0.2629 (Rjup) 2.9466 (Rearth)
Mass (Mjup / Me): 0.0227 (Mjup) 7.2075 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1335 (AU) 0.1335 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0538
Orbital Period(Observed/Estimated) 19.66 (Days Obs.) 19.10 (Days Est.)
Surface Gravity (G Earth) 0.8301
Star Radiation at Atmospheric Boundary: 32603.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 599.7 (K)
Blackbody T 0.3(K) 563.2 (K)
Blackbody T 0.7(K) 455.7 (K)
Tidally Locked Blackbody T 0.1(K) 713.2 (K)
Tidally Locked Blackbody T 0.3(K) 669.8 (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-1757
Alternate Name : "10028140, KOI-1591"
Star Distance(LY) : 2633.1
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 0.7 (GY)
Temperature : 5146 (K)
Spectral type : G9/K0V
UV portion[%]: 4.4
Visible portion[%]: 39.3
IR portion[%]: 56.3
Metalicity : -0.2
Absolute Magnitude: 6.3
Apparent Magnitude: 15.8
Right Ascension(RA) 297.7398
Declination (DEC) 46.9419
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-1757 b
Kepler-1757 b

  • Kepler-1757 b is an exoplanet orbiting the star Kepler-1757, located about 2633.1 light-years (807.3 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1757 has apparent magnitude of 15.8, with absolute magnitude of 6.3.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5146 with its spectral types of G9/K0V
  • In this planetary system, the extrasolar planet Kepler-1757 b orbits around the star Kepler-1757 every 19.7 days with its orbital distance of 0.13 AU ( 19971315.7 km)
  • (Projected orbit of Kepler-1757 b around its host star Kepler-1757)


  • The Star Kepler-1757 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.472 AU ( 70545528.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.652 AU ( 97512356.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.993 AU ( 148587252.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.462 AU ( 218652650.7 km)
  • Radiation at Planetary Boundary of Kepler-1757 b : 32603.56 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1757)



  • Kopparapu Recent Venus for Star Kepler-1757 distance : 0.506 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1757 distance : 0.641 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1757 distance : 0.619 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1757 distance : 0.680 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1757 distance : 1.156 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1757 distance : 1.219 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1757)



  • Original Kopparapu Recent Venus for Star Kepler-1757 distance : 0.502 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1757 distance : 0.660 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1757 distance : 0.664 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1757 distance : 1.175 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1757 distance : 1.222 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1757)



    (Position in Stellar Map of star Kepler-1757 and its Exoplanet Kepler-1757 b)



    (Zoomed position in Stellar Map of star Kepler-1757 and its Exoplanet Kepler-1757 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1757*)
    *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