Imaginary Picture of K2-16 d

Display orbital revolution of K2-16 d around the hoststar K2-16
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Exoplanet Name : K2-16 d
Alternate Name : "2MASS J11402333+0433264 d, EPIC 201754305.03, WISE J114023.33+043326.7 d, EPIC 201754305 d"
Status : Confirmed
Radius (Rjup / Re): 0.0920 (Rjup) 1.0312 (Rearth)
Mass (Mjup / Me): 0.0034 (Mjup) 1.0925 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0333 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0074
Orbital Period(Observed/Estimated) 2.72 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.0273
Star Radiation at Atmospheric Boundary: 246999.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 995.0 (K)
Blackbody T 0.3(K) 934.4 (K)
Blackbody T 0.7(K) 756.0 (K)
Tidally Locked Blackbody T 0.1(K) 1183.2 (K)
Tidally Locked Blackbody T 0.3(K) 1111.2 (K)
Size Class: 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 : K2-16
Alternate Name : "EPIC 201754305, 2MASS J11402333+0433264, WISE J114023.33+043326.7"
Star Distance(LY) : 1103.0
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.7 (Msun Measured) 0.7 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 4761 (K)
Spectral type : K3 V
UV portion[%]: 2.3
Visible portion[%]: 35.0
IR portion[%]: 62.6
Metalicity : -0.3
Absolute Magnitude: 6.7
Apparent Magnitude: 14.3
Right Ascension(RA) 175.0973
Declination (DEC) 4.5573
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=K2-16&submit=SIMBAD+search
Open Exoplanet Database Link
K2-16 d
K2-16 d
  • K2-16 d is an exoplanet orbiting the star K2-16, located about 1103.0 light-years (338.2 pc) away from Solar System. Its discovery was publicly announced on 2019.
  • The host star K2-16 has apparent magnitude of 14.3, with absolute magnitude of 6.7.
  • It is 0.7 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4761 with its spectral types of K3 V
  • In this planetary system, the extrasolar planet K2-16 d orbits around the star K2-16 every 2.7 days with its orbital distance of 0.03 AU ( 4986776.7 km)
    • (Projected orbit of K2-16 d around its host star K2-16)


  • The Star K2-16 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.324 AU ( 48483996.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.448 AU ( 67017553.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.683 AU ( 102119920.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.005 AU ( 150273936.7 km)
  • Radiation at Planetary Boundary of K2-16 d : 246999.68 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-16)



  • Kopparapu Recent Venus for Star K2-16 distance : 0.354 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star K2-16 distance : 0.449 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star K2-16 distance : 0.433 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star K2-16 distance : 0.476 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-16 distance : 0.821 AU
  • Kopparapu Outer Boundary for Early Mars for Star K2-16 distance : 0.866 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-16)



  • Original Kopparapu Recent Venus for Star K2-16 distance : 0.350 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-16 distance : 0.463 AU
  • Original Kopparapu Moist Greenhouse for Star K2-16 distance : 0.463 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-16 distance : 0.835 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-16 distance : 0.868 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-16)



    (Position in Stellar Map of star K2-16 and its Exoplanet K2-16 d)



    (Zoomed position in Stellar Map of star K2-16 and its Exoplanet K2-16 d (zoom level 3))

    (Synthetic Spectrum of star K2-16*)
    *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