HD 103774 A

Display orbital revolution around the star HD 103774 A
Imaginary Picture of Star HD 103774 A
Star Name : HD 103774 A
Alternate Name : HD 103774
Star Distance (LY/pc): 184.1649 (LY) 56.4653 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.2155 (Rsun, estimated)
Stellar Mass (Msun): 1.3350 (Msun/observed) 1.3350 (Msun/estimated)
Spectral type : F5V
Metalicity : 0.2800
Absolute Magnitude : 3.36
Apparent Magnitude : 7.12
Right Ascension(RA) : 179.23162
Declination(DEC) : -12.10780
  • This is the HD 103774 A . The star HD 103774 A islocated about 184.2 light-years (56.5 pc) away from our Solar System.
  • The star HD 103774 A has apparent magnitude of 7.1, with absolute magnitude of 3.4.
  • It is 1.3 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6489 with its spectral types of F5V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HD 103774 A b radius 1.017056 mass 0.367000 orbital distance 0.070000
    (Illustration of the HD 103774 A's Planetary System)



    The Star HD 103774 A 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.109 AU ( 165874588.7 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.533 AU ( 229282029.7 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.335 AU ( 349375073.3 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.437 AU ( 514120725.5 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 103774 A)



    Kopparapu's Recent Venus for Star HD 103774 A distance : 1.180 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 103774 A distance : 1.495 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 103774 A distance : 1.443 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 103774 A distance : 1.581 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 103774 A distance : 2.600 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 103774 A distance : 2.743 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 103774 A)



  • Original Kopparapu Recent Venus for Star HD 103774 A distance : 1.200 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 103774 A distance : 1.532 AU
  • Original Kopparapu Moist Greenhouse for Star HD 103774 A distance : 1.588 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 103774 A distance : 2.647 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 103774 A distance : 2.753 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 103774 A)



    (Position in Stellar Map of star HD 103774 A )



    (Zoomed position in Stellar Map of star HD 103774 A (zoom level 3))

    (Synthetic Spectrum of star HD 33142*)
    *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