Imaginary Picture of EPIC 246471491 d
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Exoplanet Name : EPIC 246471491 d
Alternate Name :
Radius (Rjup / Re): 0.2213 (Rjup) 2.4806 (Rearth)
Mass (Mjup / Me): 0.0205 (Mjup) 6.5177 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1178 (AU) 0.1178 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0286
Orbital Period(Observed/Estimated) 10.46 (Days Obs.) 16.21 (Days Est.)
Star Radiation at Atmospheric Boundary: 33530.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 604.0 (K)
Blackbody T 0.3(K) 567.2 (K)
Blackbody T 0.7(K) 458.9 (K)
Tidally Locked Blackbody T 0.1(K) 718.2 (K)
Tidally Locked Blackbody T 0.3(K) 674.5 (K)
Size Class: sub-Neptune-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 : EPIC 246471491
Alternate Name :
Star Distance(LY) : 507.5
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 2.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 4975 (K)
Spectral type : K2V
Metalicity : 0.0
Absolute Magnitude: 6.1
Apparent Magnitude: 12.0
Right Ascension(RA) 349.3843
Declination (DEC) 1.3003
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
EPIC 246471491 d
EPIC 246471491 d

  • EPIC 246471491 d is an exoplanet orbiting the star EPIC 246471491, located about 507.5 light-years (155.6 pc) away from Solar System. Its discovery was publicly announced on 2018.
  • The host star EPIC 246471491 has apparent magnitude of 12.0, with absolute magnitude of 6.1.
  • It is 0.8 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 4975 with its spectral types of K2V
  • In this planetary system, the extrasolar planet EPIC 246471491 d orbits around the star EPIC 246471491 every 10.5 days with its orbital distance of 0.12 AU ( 17622629.2 km)
  • (Projected orbit of EPIC 246471491 d around its host star EPIC 246471491)


  • The Star EPIC 246471491 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.422 AU ( 63127561.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.583 AU ( 87258787.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.889 AU ( 132963081.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.308 AU ( 195660999.6 km)
  • Radiation at Planetary Boundary of EPIC 246471491 d : 33530.19 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star EPIC 246471491)



  • Kopparapu Recent Venus for Star EPIC 246471491 distance : 0.457 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star EPIC 246471491 distance : 0.579 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star EPIC 246471491 distance : 0.559 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star EPIC 246471491 distance : 0.613 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star EPIC 246471491 distance : 1.050 AU
  • Kopparapu Outer Boundary for Early Mars for Star EPIC 246471491 distance : 1.107 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star EPIC 246471491)



  • Original Kopparapu Recent Venus for Star EPIC 246471491 distance : 0.452 AU
  • Original Kopparapu Runaway Greenhouse for Star EPIC 246471491 distance : 0.596 AU
  • Original Kopparapu Moist Greenhouse for Star EPIC 246471491 distance : 0.598 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star EPIC 246471491 distance : 1.067 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star EPIC 246471491 distance : 1.110 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star EPIC 246471491)



    (Position in Stellar Map of star EPIC 246471491 and its Exoplanet EPIC 246471491 d)



    (Zoomed position in Stellar Map of star EPIC 246471491 and its Exoplanet EPIC 246471491 d (zoom level 3))