Imaginary Picture of K2-97 b

Display orbital revolution of K2-97 b around the hoststar K2-97
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Exoplanet Name : K2-97 b
Alternate Name : "EPIC 211351816 b, 2MASS 08310308+1050513 b, 2MASS J08310308+1050513 b, EPIC 211351816.01, WISE J083103.08+105051.2 b"
Status : Confirmed
Radius (Rjup / Re): 0.9470 (Rjup) 10.6149 (Rearth)
Mass (Mjup / Me): 1.1000 (Mjup) 349.7318 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0860 (AU) 0.0860 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0230
Orbital Period(Observed/Estimated) 8.41 (Days Obs.) 8.41 (Days Est.)
Surface Gravity (G Earth) 3.1039
Star Radiation at Atmospheric Boundary: 1640160.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1597.2 (K)
Blackbody T 0.3(K) 1500.0 (K)
Blackbody T 0.7(K) 1213.6 (K)
Tidally Locked Blackbody T 0.1(K) 1899.4 (K)
Tidally Locked Blackbody T 0.3(K) 1783.8 (K)
Size Class: 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 : K2-97
Alternate Name : "EPIC 211351816, 2MASS J08310308+1050513, WISE J083103.08+105051.2"
Star Distance(LY) : 2836.8
Stellar Radius(Rsun) : 4.5 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 7.8 (GY)
Temperature : 4717 (K)
Spectral type : K3
UV portion[%]: 2.2
Visible portion[%]: 34.4
IR portion[%]: 63.3
Metalicity : 0.3
Absolute Magnitude: 1.0
Apparent Magnitude: 10.7
Right Ascension(RA) 127.7629
Declination (DEC) 10.8476
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=K2-97&submit=SIMBAD+search
Open Exoplanet Database Link
K2-97 b
K2-97 b

  • K2-97 b is an exoplanet orbiting the star K2-97, located about 2836.8 light-years (869.8 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star K2-97 has apparent magnitude of 10.7, with absolute magnitude of 1.0.
  • It is 1.2 times more massive and 4.5 times bigger compared with our Sun. The surface temperature is 4717 with its spectral types of K3
  • In this planetary system, the extrasolar planet K2-97 b orbits around the star K2-97 every 8.4 days with its orbital distance of 0.09 AU ( 12865416.9 km)
  • (Projected orbit of K2-97 b around its host star K2-97)


  • The Star K2-97 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 2.155 AU ( 322327521.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.978 AU ( 445540868.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 4.538 AU ( 678905685.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 6.678 AU ( 999039456.9 km)
  • Radiation at Planetary Boundary of K2-97 b : 1640160.92 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-97)



  • Kopparapu Recent Venus for Star K2-97 distance : 2.360 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star K2-97 distance : 2.988 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star K2-97 distance : 2.886 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star K2-97 distance : 3.169 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-97 distance : 5.481 AU
  • Kopparapu Outer Boundary for Early Mars for Star K2-97 distance : 5.781 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-97)



  • Original Kopparapu Recent Venus for Star K2-97 distance : 2.330 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-97 distance : 3.082 AU
  • Original Kopparapu Moist Greenhouse for Star K2-97 distance : 3.084 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-97 distance : 5.571 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-97 distance : 5.794 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-97)



    (Position in Stellar Map of star K2-97 and its Exoplanet K2-97 b)



    (Zoomed position in Stellar Map of star K2-97 and its Exoplanet K2-97 b (zoom level 3))

    (Synthetic Spectrum of star K2-97*)
    *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