Imaginary Picture of K2-352 d

Display orbital revolution of K2-352 d around the hoststar K2-352
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Exoplanet Name : K2-352 d
Alternate Name : EPIC 251319382 d
Status : Confirmed
Radius (Rjup / Re): 0.1713 (Rjup) 1.9201 (Rearth)
Mass (Mjup / Me): 0.0152 (Mjup) 4.8395 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0000 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0100
Orbital Period(Observed/Estimated) 3.67 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.3127
Star Radiation at Atmospheric Boundary: 0.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 0.0 (K)
Blackbody T 0.3(K) 0.0 (K)
Blackbody T 0.7(K) 0.0 (K)
Tidally Locked Blackbody T 0.1(K) 0.0 (K)
Tidally Locked Blackbody T 0.3(K) 0.0 (K)
Size Class: sub-Neptune-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 : K2-352
Alternate Name :
Star Distance(LY) : 0.0
Stellar Radius(Rsun) : 0.4 (Rsun Estimated)
Stellar Mass(Msun) : 0.0 (Msun Measured) 0.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3300 (K)
Spectral type : M9
UV portion[%]: 0.2
Visible portion[%]: 11.2
IR portion[%]: 88.6
Metalicity : 0.0
Absolute Magnitude: 25.0
Apparent Magnitude: 11.0
Right Ascension(RA) 140.4458
Declination (DEC) 18.4694
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
K2-352 d
K2-352 d

  • K2-352 d is an exoplanet orbiting the star K2-352. Its discovery was publicly announced on 2022.
  • The host star K2-352 has apparent magnitude of 11.0, with absolute magnitude of 25.0.
  • In this planetary system, the extrasolar planet K2-352 d orbits around the star K2-352 every 3.7 days with its orbital distance of 0.00 AU ( 0.0 km)
  • (Projected orbit of K2-352 d around its host star K2-352)


  • The Star K2-352 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.102 AU ( 15301294.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.141 AU ( 21150388.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.215 AU ( 32228511.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.317 AU ( 47425666.0 km)
  • Radiation at Planetary Boundary of K2-352 d : 0.00 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-352)



  • Kopparapu Recent Venus for Star K2-352 distance : 0.116 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star K2-352 distance : 0.147 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star K2-352 distance : 0.142 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star K2-352 distance : 0.156 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-352 distance : 0.288 AU
  • Kopparapu Outer Boundary for Early Mars for Star K2-352 distance : 0.304 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-352)



  • Original Kopparapu Recent Venus for Star K2-352 distance : 0.115 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-352 distance : 0.152 AU
  • Original Kopparapu Moist Greenhouse for Star K2-352 distance : 0.152 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-352 distance : 0.293 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-352 distance : 0.304 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-352)



    (Position in Stellar Map of star K2-352 and its Exoplanet K2-352 d)



    (Zoomed position in Stellar Map of star K2-352 and its Exoplanet K2-352 d (zoom level 3))

    (Synthetic Spectrum of star K2-352*)
    *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