eps Eridani

Display orbital revolution around the star eps Eridani
Imaginary Picture of Star eps Eridani
Star Name : eps Eridani
Alternate Name : HD 22049
Star Distance (LY/pc): 10.4370 (LY) 3.2000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.8950 (Rsun, estimated)
Stellar Mass (Msun): 0.8300 (Msun/observed) 0.8300 (Msun/estimated)
Spectral type : K2 V
Metalicity : -0.1300
Absolute Magnitude : 6.20
Apparent Magnitude : 3.73
Right Ascension(RA) : 53.23269
Declination(DEC) : -9.45806
  • This is the eps Eridani . The star eps Eridani islocated about 10.4 light-years ( 3.2 pc) away from our Solar System.
  • The star eps Eridani has apparent magnitude of 3.7, with absolute magnitude of 6.2.
  • It is 0.8 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5116 with its spectral types of K2 V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet eps Eridani b radius 0.907830 mass 0.650000 orbital distance 3.530000
    (Illustration of the eps Eridani's Planetary System)



    The Star eps Eridani 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.507 AU ( 75917556.2 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.701 AU ( 104937902.2 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.069 AU ( 159902140.3 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.573 AU ( 235303004.3 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star eps Eridani)



    Kopparapu's Recent Venus for Star eps Eridani distance : 0.546 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star eps Eridani distance : 0.691 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star eps Eridani distance : 0.668 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star eps Eridani distance : 0.732 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star eps Eridani distance : 1.247 AU
    Kopparapu's Outer Boundary for Early Mars for Star eps Eridani distance : 1.315 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star eps Eridani)



  • Original Kopparapu Recent Venus for Star eps Eridani distance : 0.541 AU
  • Original Kopparapu Runaway Greenhouse for Star eps Eridani distance : 0.712 AU
  • Original Kopparapu Moist Greenhouse for Star eps Eridani distance : 0.716 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star eps Eridani distance : 1.268 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star eps Eridani distance : 1.319 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star eps Eridani)



    (Position in Stellar Map of star eps Eridani )



    (Zoomed position in Stellar Map of star eps Eridani (zoom level 3))

    (Synthetic Spectrum of star Kepler-1578*)
    *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