K2-99

Display orbital revolution around the star K2-99
Imaginary Picture of Star K2-99
Star Name : K2-99
Alternate Name : "TYC 4974-871, 2MASS J13550570-0526330, EPIC 212803289, TYC 4974-871-1, WISE J135505.70-052632.9"
Star Distance (LY/pc): 1703.4802 (LY) 522.2900 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 2.6300 (Rsun, estimated)
Stellar Mass (Msun): 1.6300 (Msun/observed) 1.6300 (Msun/estimated)
Spectral type : G0 IV
Metalicity : 0.2100
Absolute Magnitude : 2.56
Apparent Magnitude : 11.15
Right Ascension(RA) : 208.77376
Declination(DEC) : -5.44247
  • This is the K2-99 . The star K2-99 islocated about 1703.5 light-years (522.3 pc) away from our Solar System.
  • The star K2-99 has apparent magnitude of 11.1, with absolute magnitude of 2.6.
  • It is 1.6 times more massive and 2.6 times bigger compared with our Sun. The surface temperature is 6217 with its spectral types of G0 IV
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet K2-99 b radius 1.046000 mass 0.970000 orbital distance 0.159700
    (Illustration of the K2-99's Planetary System)



    The Star K2-99 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 2.202 AU ( 329439443.5 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 3.044 AU ( 455371403.8 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 4.638 AU ( 693885245.9 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 6.826 AU ( 1021082536.5 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-99)



    Kopparapu's Recent Venus for Star K2-99 distance : 2.222 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star K2-99 distance : 2.814 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star K2-99 distance : 2.718 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star K2-99 distance : 2.978 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star K2-99 distance : 4.920 AU
    Kopparapu's Outer Boundary for Early Mars for Star K2-99 distance : 5.189 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-99)



  • Original Kopparapu Recent Venus for Star K2-99 distance : 2.246 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-99 distance : 2.888 AU
  • Original Kopparapu Moist Greenhouse for Star K2-99 distance : 2.972 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-99 distance : 5.008 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-99 distance : 5.208 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-99)



    (Position in Stellar Map of star K2-99 )



    (Zoomed position in Stellar Map of star K2-99 (zoom level 3))

    (Synthetic Spectrum of star Kepler-827*)
    *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