K2-240

Display orbital revolution around the star K2-240
Imaginary Picture of Star K2-240
Star Name : K2-240
Alternate Name : "K2-240, 2MASS J15112391-1752307, EPIC 249801827, WISE J151123.86-175231.2"
Star Distance (LY/pc): 228.3092 (LY) 70.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.5400 (Rsun, estimated)
Stellar Mass (Msun): 0.5800 (Msun/observed) 0.5800 (Msun/estimated)
Spectral type : M0.5 V
Metalicity : -0.1000
Absolute Magnitude : 9.69
Apparent Magnitude : 13.92
Right Ascension(RA) : 227.84961
Declination(DEC) : -17.87522
  • This is the K2-240 . The star K2-240 islocated about 228.3 light-years (70.0 pc) away from our Solar System.
  • The star K2-240 has apparent magnitude of 13.9, with absolute magnitude of 9.7.
  • It is 0.6 times more massive and 0.5 times bigger compared with our Sun. The surface temperature is 3810 with its spectral types of M0.5 V
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet K2-240 b radius 0.178000 mass 0.015700 orbital distance 0.051300
  • Name of the 2 Planet K2-240 c radius 0.161000 mass 0.014500 orbital distance 0.115900
    (Illustration of the K2-240's Planetary System)



    The Star K2-240 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.170 AU ( 25403983.6 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.235 AU ( 35114944.2 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.358 AU ( 53507404.0 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.526 AU ( 78738489.0 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-240)



    Kopparapu's Recent Venus for Star K2-240 distance : 0.191 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star K2-240 distance : 0.242 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star K2-240 distance : 0.233 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star K2-240 distance : 0.255 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star K2-240 distance : 0.463 AU
    Kopparapu's Outer Boundary for Early Mars for Star K2-240 distance : 0.489 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-240)



  • Original Kopparapu Recent Venus for Star K2-240 distance : 0.189 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-240 distance : 0.250 AU
  • Original Kopparapu Moist Greenhouse for Star K2-240 distance : 0.250 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-240 distance : 0.470 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-240 distance : 0.489 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-240)



    (Position in Stellar Map of star K2-240 )



    (Zoomed position in Stellar Map of star K2-240 (zoom level 3))

    (Synthetic Spectrum of star Kepler-950*)
    *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