Imaginary Picture of KELT-7 b

Display orbital revolution of KELT-7 b around the hoststar KELT-7
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Exoplanet Name : KELT-7 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.2930 (Rjup) 14.4932 (Rearth)
Mass (Mjup / Me): 1.2400 (Mjup) 394.2431 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0446 (AU) 0.0446 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0075
Orbital Period(Observed/Estimated) 2.73 (Days Obs.) 2.78 (Days Est.)
Surface Gravity (G Earth) 1.8769
Star Radiation at Atmospheric Boundary: 3928747.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1987.0 (K)
Blackbody T 0.3(K) 1866.0 (K)
Blackbody T 0.7(K) 1509.8 (K)
Tidally Locked Blackbody T 0.1(K) 2363.0 (K)
Tidally Locked Blackbody T 0.3(K) 2219.1 (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-7
Alternate Name :
Star Distance(LY) : 456.8
Stellar Radius(Rsun) : 1.7 (Rsun Measured)
Stellar Mass(Msun) : 1.5 (Msun Measured) 1.6 (Msun Estimated)
Star Age : 1.3 (GY)
Temperature : 6789 (K)
Spectral type : F4
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.1
Absolute Magnitude: 2.8
Apparent Magnitude: 8.5
Right Ascension(RA) 78.2955
Declination (DEC) 33.3181
Hubble Space Telescope Guide Star Catalog (GSC) ID 02393-00852
Discovered by
Discovery Paper - Authors "Allyson Bieryla, Karen Collins, Thomas G. Beatty, Jason Eastman, Robert J. Siverd, Joshua Pepper, B. Scott Gaudi, Keivan G. Stassun, Caleb Canas, David W. Latham et al."
Discovery Paper - Title KELT-7b: A hot Jupiter transiting a bright V=8.54 rapidly rotating F-star
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=KELT-7+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/KELT-7%20b/
KELT-7 b
KELT-7 b

  • KELT-7 b is an exoplanet orbiting the star KELT-7, located about 456.8 light-years (140.1 pc) away from Solar System. Its discovery was publicly announced on 2015.
  • The host star KELT-7 has apparent magnitude of 8.5, with absolute magnitude of 2.8.
  • It is 1.5 times more massive and 1.7 times bigger compared with our Sun. The surface temperature is 6789 with its spectral types of F4
  • In this planetary system, the extrasolar planet KELT-7 b orbits around the star KELT-7 every 2.7 days with its orbital distance of 0.04 AU ( 6672065.0 km)
  • (Projected orbit of KELT-7 b around its host star KELT-7)


  • The Star KELT-7 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.729 AU ( 258712622.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.390 AU ( 357608453.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.643 AU ( 544916144.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 5.360 AU ( 801867977.5 km)
  • Radiation at Planetary Boundary of KELT-7 b : 3928747.37 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star KELT-7)



  • Kopparapu Recent Venus for Star KELT-7 distance : 1.689 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star KELT-7 distance : 2.139 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star KELT-7 distance : 2.065 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star KELT-7 distance : 2.262 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star KELT-7 distance : 3.707 AU
  • Kopparapu Outer Boundary for Early Mars for Star KELT-7 distance : 3.909 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star KELT-7)



  • Original Kopparapu Recent Venus for Star KELT-7 distance : 1.728 AU
  • Original Kopparapu Runaway Greenhouse for Star KELT-7 distance : 2.191 AU
  • Original Kopparapu Moist Greenhouse for Star KELT-7 distance : 2.287 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star KELT-7 distance : 3.774 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star KELT-7 distance : 3.925 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star KELT-7)



    (Position in Stellar Map of star KELT-7 and its Exoplanet KELT-7 b)



    (Zoomed position in Stellar Map of star KELT-7 and its Exoplanet KELT-7 b (zoom level 3))

    (Synthetic Spectrum of star KELT-7*)
    *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