Imaginary Picture of K2-325 b

Display orbital revolution of K2-325 b around the hoststar K2-325
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Exoplanet Name : K2-325 b
Alternate Name : "2MASS J23354006-0741116 b, EPIC 246074965 b, TIC 8918021 b, WISE J233540.06-074112.0 b"
Status : Confirmed
Radius (Rjup / Re): 0.1960 (Rjup) 2.1970 (Rearth)
Mass (Mjup / Me): 0.0173 (Mjup) 5.4854 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0419 (AU) 0.0419 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0190
Orbital Period(Observed/Estimated) 6.93 (Days Obs.) 6.03 (Days Est.)
Surface Gravity (G Earth) 1.1365
Star Radiation at Atmospheric Boundary: 7338.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 413.1 (K)
Blackbody T 0.3(K) 387.9 (K)
Blackbody T 0.7(K) 313.9 (K)
Tidally Locked Blackbody T 0.1(K) 491.3 (K)
Tidally Locked Blackbody T 0.3(K) 461.3 (K)
Size Class: sub-Neptune-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 : K2-325
Alternate Name : "2MASS J23354006-0741116, EPIC 246074965, TIC 8918021, WISE J233540.06-074112.0"
Star Distance(LY) : 365.9
Stellar Radius(Rsun) : 0.3 (Rsun Measured)
Stellar Mass(Msun) : 0.3 (Msun Measured) 0.2 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3287 (K)
Spectral type : M6
UV portion[%]: 0.2
Visible portion[%]: 10.5
IR portion[%]: 89.3
Metalicity : 0.0
Absolute Magnitude: 7.9
Apparent Magnitude: 13.2
Right Ascension(RA) 353.9169
Declination (DEC) -7.6866
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=K2-325&submit=SIMBAD+search
Open Exoplanet Database Link
K2-325 b
K2-325 b

  • K2-325 b is an exoplanet orbiting the star K2-325, located about 365.9 light-years (112.2 pc) away from Solar System. Its discovery was publicly announced on 2020.
  • The host star K2-325 has apparent magnitude of 13.2, with absolute magnitude of 7.9.
  • It is 0.3 times more massive and 0.3 times bigger compared with our Sun. The surface temperature is 3287 with its spectral types of M6
  • In this planetary system, the extrasolar planet K2-325 b orbits around the star K2-325 every 6.9 days with its orbital distance of 0.04 AU ( 6268150.8 km)
  • (Projected orbit of K2-325 b around its host star K2-325)


  • The Star K2-325 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.070 AU ( 10504582.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.097 AU ( 14520077.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.148 AU ( 22125384.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.218 AU ( 32558473.0 km)
  • Radiation at Planetary Boundary of K2-325 b : 7338.68 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-325)



  • Kopparapu Recent Venus for Star K2-325 distance : 0.080 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star K2-325 distance : 0.101 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star K2-325 distance : 0.097 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star K2-325 distance : 0.107 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-325 distance : 0.198 AU
  • Kopparapu Outer Boundary for Early Mars for Star K2-325 distance : 0.209 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-325)



  • Original Kopparapu Recent Venus for Star K2-325 distance : 0.079 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-325 distance : 0.104 AU
  • Original Kopparapu Moist Greenhouse for Star K2-325 distance : 0.105 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-325 distance : 0.201 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-325 distance : 0.209 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-325)



    (Position in Stellar Map of star K2-325 and its Exoplanet K2-325 b)



    (Zoomed position in Stellar Map of star K2-325 and its Exoplanet K2-325 b (zoom level 3))

    (Synthetic Spectrum of star K2-325*)
    *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