Imaginary Picture of K2-34 b

Display orbital revolution of K2-34 b around the hoststar K2-34
/
Exoplanet Name : K2-34 b
Alternate Name : "2MASS J08301891+2214092 b, EPIC 212110888 b, EPIC 212110888.01, TYC 1391-121-1 b, WISE J083018.89+221409.2 b"
Radius (Rjup / Re): 1.2450 (Rjup) 13.9552 (Rearth)
Mass (Mjup / Me): 1.7800 (Mjup) 565.9296 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0426 (AU) 0.0426 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0082
Orbital Period(Observed/Estimated) 3.00 (Days Obs.) 2.99 (Days Est.)
Surface Gravity (G Earth) 2.9060
Star Radiation at Atmospheric Boundary: 1903494.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1657.8 (K)
Blackbody T 0.3(K) 1556.8 (K)
Blackbody T 0.7(K) 1259.7 (K)
Tidally Locked Blackbody T 0.1(K) 1971.5 (K)
Tidally Locked Blackbody T 0.3(K) 1851.4 (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 : K2-34
Alternate Name : "2MASS J08301891+2214092, EPIC 212110888, TYC 1391-121-1, WISE J083018.89+221409.2"
Star Distance(LY) : 1149.2
Stellar Radius(Rsun) : 1.4 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6071 (K)
Spectral type : F9 V
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.0
Absolute Magnitude: 3.8
Apparent Magnitude: 11.5
Right Ascension(RA) 127.5788
Declination (DEC) 22.2359
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=K2-34+&submit=SIMBAD+search
Open Exoplanet Database Link
K2-34 b
K2-34 b

  • K2-34 b is an exoplanet orbiting the star K2-34, located about 1149.2 light-years (352.3 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star K2-34 has apparent magnitude of 11.5, with absolute magnitude of 3.8.
  • It is 1.1 times more massive and 1.4 times bigger compared with our Sun. The surface temperature is 6071 with its spectral types of F9 V
  • In this planetary system, the extrasolar planet K2-34 b orbits around the star K2-34 every 3.0 days with its orbital distance of 0.04 AU ( 6372869.3 km)
  • (Projected orbit of K2-34 b around its host star K2-34)


  • The Star K2-34 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.150 AU ( 172004999.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.589 AU ( 237755859.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.422 AU ( 362287314.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.564 AU ( 533121654.5 km)
  • Radiation at Planetary Boundary of K2-34 b : 1903494.07 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-34)



  • Kopparapu Recent Venus for Star K2-34 distance : 1.171 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star K2-34 distance : 1.483 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star K2-34 distance : 1.432 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star K2-34 distance : 1.569 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-34 distance : 2.599 AU
  • Kopparapu Outer Boundary for Early Mars for Star K2-34 distance : 2.742 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-34)



  • Original Kopparapu Recent Venus for Star K2-34 distance : 1.179 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-34 distance : 1.522 AU
  • Original Kopparapu Moist Greenhouse for Star K2-34 distance : 1.561 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-34 distance : 2.646 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-34 distance : 2.752 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-34)



    (Position in Stellar Map of star K2-34 and its Exoplanet K2-34 b)



    (Zoomed position in Stellar Map of star K2-34 and its Exoplanet K2-34 b (zoom level 3))

    (Synthetic Spectrum of star K2-34*)
    *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