Imaginary Picture of KELT-17 b
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Exoplanet Name : KELT-17 b
Alternate Name :
Radius (Rjup / Re): 1.5250 (Rjup) 17.0937 (Rearth)
Mass (Mjup / Me): 1.3100 (Mjup) 416.4988 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0488 (AU) 0.0488 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0084
Orbital Period(Observed/Estimated) 3.08 (Days Obs.) 3.08 (Days Est.)
Star Radiation at Atmospheric Boundary: 4300080.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 2032.4 (K)
Blackbody T 0.3(K) 1908.6 (K)
Blackbody T 0.7(K) 1544.3 (K)
Tidally Locked Blackbody T 0.1(K) 2417.0 (K)
Tidally Locked Blackbody T 0.3(K) 2269.8 (K)
Size Class: Super-Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Radial Velocity
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : KELT-17
Alternate Name :
Star Distance(LY) : 684.9
Stellar Radius(Rsun) : 1.6 (Rsun Measured)
Stellar Mass(Msun) : 1.6 (Msun Measured) 1.6 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 7454 (K)
Spectral type : A
Metalicity : -0.0
Absolute Magnitude: 2.7
Apparent Magnitude: 9.3
Right Ascension(RA) 125.6175
Declination (DEC) 13.7353
Hubble Space Telescope Guide Star Catalog (GSC) ID 00807-00903
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=KELT-17+&submit=SIMBAD+search
Open Exoplanet Database Link
KELT-17 b
KELT-17 b

  • KELT-17 b is an exoplanet orbiting the star KELT-17, located about 684.9 light-years (210.0 pc) away from Solar System. Its discovery was publicly announced on 2015.
  • The host star KELT-17 has apparent magnitude of 9.3, with absolute magnitude of 2.7.
  • It is 1.6 times more massive and 1.6 times bigger compared with our Sun. The surface temperature is 7454 with its spectral types of A
  • In this planetary system, the extrasolar planet KELT-17 b orbits around the star KELT-17 every 3.1 days with its orbital distance of 0.05 AU ( 7301872.1 km)
  • (Projected orbit of KELT-17 b around its host star KELT-17)


  • The Star KELT-17 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.980 AU ( 296212097.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.737 AU ( 409442528.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 4.171 AU ( 623899803.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 6.137 AU ( 918095892.6 km)
  • Radiation at Planetary Boundary of KELT-17 b : 4300080.18 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star KELT-17)



  • Kopparapu Recent Venus for Star KELT-17 distance : 1.879 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star KELT-17 distance : 2.380 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star KELT-17 distance : 2.298 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star KELT-17 distance : 2.516 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star KELT-17 distance : 4.106 AU
  • Kopparapu Outer Boundary for Early Mars for Star KELT-17 distance : 4.330 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star KELT-17)



  • Original Kopparapu Recent Venus for Star KELT-17 distance : 1.946 AU
  • Original Kopparapu Runaway Greenhouse for Star KELT-17 distance : 2.433 AU
  • Original Kopparapu Moist Greenhouse for Star KELT-17 distance : 2.575 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star KELT-17 distance : 4.181 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star KELT-17 distance : 4.347 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star KELT-17)



    (Position in Stellar Map of star KELT-17 and its Exoplanet KELT-17 b)



    (Zoomed position in Stellar Map of star KELT-17 and its Exoplanet KELT-17 b (zoom level 3))