Imaginary Picture of Kepler-176 e

Display orbital revolution of Kepler-176 e around the hoststar Kepler-176
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Exoplanet Name : Kepler-176 e
Alternate Name : "2MASS J19384031+4351117 e, K00520.04, KIC 8037145 e, KOI-520 e, KOI-520.04, WISE J193840.29+435111.5 e"
Status : Confirmed
Radius (Rjup / Re): 0.1290 (Rjup) 1.4460 (Rearth)
Mass (Mjup / Me): 0.0117 (Mjup) 3.7201 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.2623 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.1401
Orbital Period(Observed/Estimated) 51.17 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.7793
Star Radiation at Atmospheric Boundary: 7674.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 417.7 (K)
Blackbody T 0.3(K) 392.3 (K)
Blackbody T 0.7(K) 317.4 (K)
Tidally Locked Blackbody T 0.1(K) 496.8 (K)
Tidally Locked Blackbody T 0.3(K) 466.5 (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-176
Alternate Name : "2MASS J19384031+4351117, KIC 8037145, KOI-520, WISE J193840.29+435111.5"
Star Distance(LY) : 1719.3
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5106 (K)
Spectral type : K0
UV portion[%]: 5.3
Visible portion[%]: 40.6
IR portion[%]: 54.1
Metalicity : 0.1
Absolute Magnitude: 4.5
Apparent Magnitude: 13.1
Right Ascension(RA) 294.6680
Declination (DEC) 43.8533
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-176+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-176%20e/
Kepler-176 e
Kepler-176 e

  • Kepler-176 e is an exoplanet orbiting the star Kepler-176, located about 1719.3 light-years (527.1 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-176 has apparent magnitude of 13.1, with absolute magnitude of 4.5.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5106 with its spectral types of K0
  • In this planetary system, the extrasolar planet Kepler-176 e orbits around the star Kepler-176 every 51.2 days with its orbital distance of 0.26 AU ( 39244698.2 km)
  • (Projected orbit of Kepler-176 e around its host star Kepler-176)


  • The Star Kepler-176 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.450 AU ( 67256273.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.621 AU ( 92965746.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.947 AU ( 141659224.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.393 AU ( 208457753.9 km)
  • Radiation at Planetary Boundary of Kepler-176 e : 7674.38 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-176)



  • Kopparapu Recent Venus for Star Kepler-176 distance : 0.484 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-176 distance : 0.613 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-176 distance : 0.592 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-176 distance : 0.649 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-176 distance : 1.106 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-176 distance : 1.166 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-176)



  • Original Kopparapu Recent Venus for Star Kepler-176 distance : 0.479 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-176 distance : 0.631 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-176 distance : 0.634 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-176 distance : 1.124 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-176 distance : 1.169 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-176)



    (Position in Stellar Map of star Kepler-176 and its Exoplanet Kepler-176 e)



    (Zoomed position in Stellar Map of star Kepler-176 and its Exoplanet Kepler-176 e (zoom level 3))

    (Synthetic Spectrum of star Kepler-176*)
    *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