44 Uma

Display orbital revolution around the star 44 Uma
Imaginary Picture of Star 44 Uma
Star Name : 44 Uma
Alternate Name :
Star Distance (LY/pc): 565.7618 (LY) 173.4635 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 45.1200 (Rsun, estimated)
Stellar Mass (Msun): 2.1900 (Msun/observed) 2.1900 (Msun/estimated)
Spectral type : K3 III
Metalicity : -0.2100
Absolute Magnitude : -1.08
Apparent Magnitude : 5.12
Right Ascension(RA) : 163.39355
Declination(DEC) : 65.58500
  • This is the 44 Uma . The star 44 Uma islocated about 565.8 light-years (173.5 pc) away from our Solar System.
  • The star 44 Uma has apparent magnitude of 5.1, with absolute magnitude of -1.1.
  • It is 2.2 times more massive and 45.1 times bigger compared with our Sun. The surface temperature is 4215 with its spectral types of K3 III
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet 44 Uma b radius 1.049864 mass 12.110000 orbital distance 2.160000
    (Illustration of the 44 Uma's Planetary System)



    The Star 44 Uma 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 17.366 AU ( 2597899589.9 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 24.004 AU ( 3590976145.5 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 36.577 AU ( 5471852964.5 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 53.825 AU ( 8052071343.7 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 44 Uma)



    Kopparapu's Recent Venus for Star 44 Uma distance : 19.352 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star 44 Uma distance : 24.496 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star 44 Uma distance : 23.659 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star 44 Uma distance : 25.922 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star 44 Uma distance : 45.995 AU
    Kopparapu's Outer Boundary for Early Mars for Star 44 Uma distance : 48.521 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star 44 Uma)



  • Original Kopparapu Recent Venus for Star 44 Uma distance : 19.098 AU
  • Original Kopparapu Runaway Greenhouse for Star 44 Uma distance : 25.313 AU
  • Original Kopparapu Moist Greenhouse for Star 44 Uma distance : 25.271 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 44 Uma distance : 46.736 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star 44 Uma distance : 48.604 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star 44 Uma)



    (Position in Stellar Map of star 44 Uma )



    (Zoomed position in Stellar Map of star 44 Uma (zoom level 3))

    (Synthetic Spectrum of star MARVELS-6*)
    *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