beta Umi
Imaginary Picture of Star beta Umi
Star Name : beta Umi
Alternate Name :
Star Distance (LY/pc): 130.9338 (LY) 40.1445 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 42.0600 (Rsun, estimated)
Stellar Mass (Msun): 1.4000 (Msun/observed) 1.4000 (Msun/estimated)
Spectral type : K4III
Metalicity : -0.2700
Absolute Magnitude : -0.94
Apparent Magnitude : 2.08
Right Ascension(RA) : 222.67636
Declination(DEC) : 74.15556
  • This is the beta Umi . The star beta Umi islocated about 130.9 light-years (40.1 pc) away from our Solar System.
  • The star beta Umi has apparent magnitude of 2.1, with absolute magnitude of -0.9.
  • It is 1.4 times more massive and 42.1 times bigger compared with our Sun. The surface temperature is 4126 with its spectral types of K4III
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet beta Umi b radius 0.907830 mass 6.100000 orbital distance 1.400000
    (Illustration of the beta Umi's Planetary System)



    The Star beta Umi 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 15.512 AU ( 2320522737.0 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 21.441 AU ( 3207568847.6 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 32.672 AU ( 4887625090.3 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 48.078 AU ( 7192354433.5 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star beta Umi)



    Kopparapu's Recent Venus for Star beta Umi distance : 17.326 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star beta Umi distance : 21.931 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star beta Umi distance : 21.181 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star beta Umi distance : 23.203 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star beta Umi distance : 41.360 AU
    Kopparapu's Outer Boundary for Early Mars for Star beta Umi distance : 43.632 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star beta Umi)



  • Original Kopparapu Recent Venus for Star beta Umi distance : 17.105 AU
  • Original Kopparapu Runaway Greenhouse for Star beta Umi distance : 22.669 AU
  • Original Kopparapu Moist Greenhouse for Star beta Umi distance : 22.633 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star beta Umi distance : 42.024 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star beta Umi distance : 43.704 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star beta Umi)



    (Position in Stellar Map of star beta Umi )



    (Zoomed position in Stellar Map of star beta Umi (zoom level 3))