Imaginary Picture of EPIC 201833600 c

Display orbital revolution of EPIC 201833600 c around the hoststar K2-50
/
Exoplanet Name : EPIC 201833600 c
Alternate Name : "2MASS J11175607+0559183 c, EPIC 201833600.02, K2-50 c, WISE J111756.07+055917.9 c"
Radius (Rjup / Re): 0.0890 (Rjup) 0.9976 (Rearth)
Mass (Mjup / Me): 0.0031 (Mjup) 0.9702 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0416 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0108
Orbital Period(Observed/Estimated) 3.96 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.9749
Star Radiation at Atmospheric Boundary: 25205.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 562.4 (K)
Blackbody T 0.3(K) 528.1 (K)
Blackbody T 0.7(K) 427.3 (K)
Tidally Locked Blackbody T 0.1(K) 668.8 (K)
Tidally Locked Blackbody T 0.3(K) 628.0 (K)
Size Class: Earth-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 : K2-50
Alternate Name : "2MASS J11175607+0559183, EPIC 201833600, WISE J111756.07+055917.9"
Star Distance(LY) : 845.8
Stellar Radius(Rsun) : 0.5 (Rsun Estimated)
Stellar Mass(Msun) : 0.6 (Msun Measured) 0.6 (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: 5.3
Apparent Magnitude: 12.4
Right Ascension(RA) 169.4836
Declination (DEC) 5.9884
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
EPIC 201833600 c
EPIC 201833600 c

  • EPIC 201833600 c is an exoplanet orbiting the star K2-50, located about 845.8 light-years (259.3 pc) away from Solar System. Its discovery was publicly announced on 2019.
  • The host star K2-50 has apparent magnitude of 12.4, with absolute magnitude of 5.3.
  • It is 0.6 times more massive and 0.5 times bigger compared with our Sun. The surface temperature is 3300 with its spectral types of M9
  • In this planetary system, the extrasolar planet EPIC 201833600 c orbits around the star K2-50 every 4.0 days with its orbital distance of 0.04 AU ( 6216544.5 km)
  • (Projected orbit of EPIC 201833600 c around its host star K2-50)


  • The Star K2-50 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.129 AU ( 19307372.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.178 AU ( 26687835.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.272 AU ( 40666354.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.400 AU ( 59842322.2 km)
  • Radiation at Planetary Boundary of EPIC 201833600 c : 25205.06 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-50)



  • Kopparapu Recent Venus for Star K2-50 distance : 0.146 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star K2-50 distance : 0.185 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star K2-50 distance : 0.179 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star K2-50 distance : 0.197 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-50 distance : 0.363 AU
  • Kopparapu Outer Boundary for Early Mars for Star K2-50 distance : 0.383 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-50)



  • Original Kopparapu Recent Venus for Star K2-50 distance : 0.145 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-50 distance : 0.192 AU
  • Original Kopparapu Moist Greenhouse for Star K2-50 distance : 0.192 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-50 distance : 0.369 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-50 distance : 0.384 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-50)



    (Position in Stellar Map of star K2-50 and its Exoplanet EPIC 201833600 c)



    (Zoomed position in Stellar Map of star K2-50 and its Exoplanet EPIC 201833600 c (zoom level 3))

    (Synthetic Spectrum of star K2-50*)
    *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