eta Cet
Imaginary Picture of Star eta Cet
Star Name : eta Cet
Alternate Name :
Star Distance (LY/pc): 123.9195 (LY) 37.9939 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 14.3000 (Rsun, estimated)
Stellar Mass (Msun): 1.7000 (Msun/observed) 1.7000 (Msun/estimated)
Spectral type : K1III
Metalicity : 0.1200
Absolute Magnitude : 0.55
Apparent Magnitude : 3.45
Right Ascension(RA) : 17.14583
Declination(DEC) : -10.18222
  • This is the eta Cet . The star eta Cet islocated about 123.9 light-years (38.0 pc) away from our Solar System.
  • The star eta Cet has apparent magnitude of 3.5, with absolute magnitude of 0.6.
  • It is 1.7 times more massive and 14.3 times bigger compared with our Sun. The surface temperature is 4528 with its spectral types of K1III
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet eta Cet b radius 0.907830 mass 2.550000 orbital distance 1.270000
  • Name of the 2 Planet eta Cet c radius 0.907830 mass 3.320000 orbital distance 1.930000
    (Illustration of the eta Cet's Planetary System)



    The Star eta Cet 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 6.352 AU ( 950182409.8 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 8.780 AU ( 1313400402.6 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 13.378 AU ( 2001331558.7 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 19.686 AU ( 2945047061.4 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star eta Cet)



    Kopparapu's Recent Venus for Star eta Cet distance : 7.008 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star eta Cet distance : 8.872 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star eta Cet distance : 8.569 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star eta Cet distance : 9.394 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star eta Cet distance : 16.412 AU
    Kopparapu's Outer Boundary for Early Mars for Star eta Cet distance : 17.313 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star eta Cet)



  • Original Kopparapu Recent Venus for Star eta Cet distance : 6.915 AU
  • Original Kopparapu Runaway Greenhouse for Star eta Cet distance : 9.158 AU
  • Original Kopparapu Moist Greenhouse for Star eta Cet distance : 9.150 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star eta Cet distance : 16.680 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star eta Cet distance : 17.347 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star eta Cet)



    (Position in Stellar Map of star eta Cet )



    (Zoomed position in Stellar Map of star eta Cet (zoom level 3))