Imaginary Picture of EPIC 212737443 c

Display orbital revolution of EPIC 212737443 c around the hoststar EPIC 212737443
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Exoplanet Name : EPIC 212737443 c
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.2400 (Rjup) 2.6902 (Rearth)
Mass (Mjup / Me): 0.0303 (Mjup) 9.6335 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.2800 (AU) 0.2800 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.1795
Orbital Period(Observed/Estimated) 65.55 (Days Obs.) 65.15 (Days Est.)
Surface Gravity (G Earth) 1.3312
Star Radiation at Atmospheric Boundary: 3410.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 341.1 (K)
Blackbody T 0.3(K) 320.3 (K)
Blackbody T 0.7(K) 259.2 (K)
Tidally Locked Blackbody T 0.1(K) 405.6 (K)
Tidally Locked Blackbody T 0.3(K) 380.9 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Theoretical
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : EPIC 212737443
Alternate Name :
Star Distance(LY) : 1133.4
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.7 (Msun Measured) 0.7 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 4684 (K)
Spectral type : K4
UV portion[%]: 2.1
Visible portion[%]: 34.0
IR portion[%]: 63.9
Metalicity : -0.1
Absolute Magnitude: 7.1
Apparent Magnitude: 14.8
Right Ascension(RA) 204.2217
Declination (DEC) -7.3181
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=EPIC+212737443+&submit=SIMBAD+search
Open Exoplanet Database Link
EPIC 212737443 c
EPIC 212737443 c

  • EPIC 212737443 c is an exoplanet orbiting the star EPIC 212737443, located about 1133.4 light-years (347.5 pc) away from Solar System. Its discovery was publicly announced on 2019.
  • The host star EPIC 212737443 has apparent magnitude of 14.8, with absolute magnitude of 7.1.
  • It is 0.7 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4684 with its spectral types of K4
  • In this planetary system, the extrasolar planet EPIC 212737443 c orbits around the star EPIC 212737443 every 65.5 days with its orbital distance of 0.28 AU ( 41887403.8 km)
  • (Projected orbit of EPIC 212737443 c around its host star EPIC 212737443)


  • The Star EPIC 212737443 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.320 AU ( 47852755.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.442 AU ( 66145013.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.674 AU ( 100790362.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.991 AU ( 148317433.7 km)
  • Radiation at Planetary Boundary of EPIC 212737443 c : 3410.25 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star EPIC 212737443)



  • Kopparapu Recent Venus for Star EPIC 212737443 distance : 0.351 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star EPIC 212737443 distance : 0.444 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star EPIC 212737443 distance : 0.429 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star EPIC 212737443 distance : 0.471 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star EPIC 212737443 distance : 0.816 AU
  • Kopparapu Outer Boundary for Early Mars for Star EPIC 212737443 distance : 0.861 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star EPIC 212737443)



  • Original Kopparapu Recent Venus for Star EPIC 212737443 distance : 0.346 AU
  • Original Kopparapu Runaway Greenhouse for Star EPIC 212737443 distance : 0.458 AU
  • Original Kopparapu Moist Greenhouse for Star EPIC 212737443 distance : 0.458 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star EPIC 212737443 distance : 0.829 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star EPIC 212737443 distance : 0.863 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star EPIC 212737443)



    (Position in Stellar Map of star EPIC 212737443 and its Exoplanet EPIC 212737443 c)



    (Zoomed position in Stellar Map of star EPIC 212737443 and its Exoplanet EPIC 212737443 c (zoom level 3))

    (Synthetic Spectrum of star EPIC 212737443*)
    *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