Imaginary Picture of K2-334 b

Display orbital revolution of K2-334 b around the hoststar K2-334
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Exoplanet Name : K2-334 b
Alternate Name : "EPIC 211730024 b, EPIC 211730024.01"
Status : Confirmed
Radius (Rjup / Re): 0.5041 (Rjup) 5.6505 (Rearth)
Mass (Mjup / Me): 0.1256 (Mjup) 39.9228 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0644 (AU) 0.0644 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0140
Orbital Period(Observed/Estimated) 5.11 (Days Obs.) 5.12 (Days Est.)
Surface Gravity (G Earth) 1.2504
Star Radiation at Atmospheric Boundary: 985414.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1406.2 (K)
Blackbody T 0.3(K) 1320.6 (K)
Blackbody T 0.7(K) 1068.5 (K)
Tidally Locked Blackbody T 0.1(K) 1672.3 (K)
Tidally Locked Blackbody T 0.3(K) 1570.4 (K)
Size Class: sub-Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : K2-334
Alternate Name : EPIC 211730024
Star Distance(LY) : 1212.7
Stellar Radius(Rsun) : 1.5 (Rsun Measured)
Stellar Mass(Msun) : 1.4 (Msun Measured) 1.4 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6224 (K)
Spectral type : F5IV-V
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : 0.2
Absolute Magnitude: 3.2
Apparent Magnitude: 11.0
Right Ascension(RA) 136.4895
Declination (DEC) 16.3256
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
K2-334 b
K2-334 b

  • K2-334 b is an exoplanet orbiting the star K2-334, located about 1212.7 light-years (371.8 pc) away from Solar System. Its discovery was publicly announced on 2018.
  • The host star K2-334 has apparent magnitude of 11.0, with absolute magnitude of 3.2.
  • It is 1.4 times more massive and 1.5 times bigger compared with our Sun. The surface temperature is 6224 with its spectral types of F5IV-V
  • In this planetary system, the extrasolar planet K2-334 b orbits around the star K2-334 every 5.1 days with its orbital distance of 0.06 AU ( 9632606.9 km)
  • (Projected orbit of K2-334 b around its host star K2-334)


  • The Star K2-334 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.250 AU ( 187061128.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.728 AU ( 258567363.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.634 AU ( 393999441.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.876 AU ( 579787438.3 km)
  • Radiation at Planetary Boundary of K2-334 b : 985414.24 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-334)



  • Kopparapu Recent Venus for Star K2-334 distance : 1.261 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star K2-334 distance : 1.597 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star K2-334 distance : 1.543 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star K2-334 distance : 1.691 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-334 distance : 2.792 AU
  • Kopparapu Outer Boundary for Early Mars for Star K2-334 distance : 2.945 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-334)



  • Original Kopparapu Recent Venus for Star K2-334 distance : 1.275 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-334 distance : 1.639 AU
  • Original Kopparapu Moist Greenhouse for Star K2-334 distance : 1.687 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-334 distance : 2.842 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-334 distance : 2.956 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-334)



    (Position in Stellar Map of star K2-334 and its Exoplanet K2-334 b)



    (Zoomed position in Stellar Map of star K2-334 and its Exoplanet K2-334 b (zoom level 3))

    (Synthetic Spectrum of star K2-334*)
    *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