eps Ret A

Display orbital revolution around the star eps Ret A
Imaginary Picture of Star eps Ret A
Star Name : eps Ret A
Alternate Name : "HD 27442, HR 1355"
Star Distance (LY/pc): 59.0342 (LY) 18.1000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 6.6000 (Rsun, estimated)
Stellar Mass (Msun): 1.2000 (Msun/observed) 1.2000 (Msun/estimated)
Spectral type : K2IIII-Va
Metalicity : 0.2200
Absolute Magnitude : 3.15
Apparent Magnitude : 4.44
Right Ascension(RA) : 64.12083
Declination(DEC) : -59.30194
  • This is the eps Ret A . The star eps Ret A islocated about 59.0 light-years (18.1 pc) away from our Solar System.
  • The star eps Ret A has apparent magnitude of 4.4, with absolute magnitude of 3.2.
  • It is 1.2 times more massive and 6.6 times bigger compared with our Sun. The surface temperature is 4749 with its spectral types of K2IIII-Va
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet Eps Ret Ab radius 1.049907 mass 1.350000 orbital distance 1.160000
    (Illustration of the eps Ret A's Planetary System)



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

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 3.225 AU ( 482398987.0 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 4.457 AU ( 666801466.0 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 6.792 AU ( 1016057871.3 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 9.995 AU ( 1495173668.3 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star eps Ret A)



    Kopparapu's Recent Venus for Star eps Ret A distance : 3.528 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star eps Ret A distance : 4.466 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star eps Ret A distance : 4.314 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star eps Ret A distance : 4.730 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star eps Ret A distance : 8.180 AU
    Kopparapu's Outer Boundary for Early Mars for Star eps Ret A distance : 8.629 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star eps Ret A)



  • Original Kopparapu Recent Venus for Star eps Ret A distance : 3.484 AU
  • Original Kopparapu Runaway Greenhouse for Star eps Ret A distance : 4.607 AU
  • Original Kopparapu Moist Greenhouse for Star eps Ret A distance : 4.610 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star eps Ret A distance : 8.315 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star eps Ret A distance : 8.648 AU

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



    (Position in Stellar Map of star eps Ret A )



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

    (Synthetic Spectrum of star *)
    *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