HD 153557 A

Display orbital revolution around the star HD 153557 A
Imaginary Picture of Star HD 153557 A
Star Name : HD 153557 A
Alternate Name : "*V1090 Her, BD+47 2415 A, GJ 649.1 A, STFA 32 A, STF 4032 A"
Star Distance (LY/pc): 58.5163 (LY) 17.9412 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.7900 (Rsun, estimated)
Stellar Mass (Msun): 0.7451 (Msun/observed) 0.7451 (Msun/estimated)
Spectral type : K3V
Metalicity : 0.0000
Absolute Magnitude : 6.55
Apparent Magnitude : 7.82
Right Ascension(RA) : 254.47158
Declination(DEC) : 47.36668
  • This is the HD 153557 A . The star HD 153557 A islocated about 58.5 light-years (17.9 pc) away from our Solar System.
  • The star HD 153557 A has apparent magnitude of 7.8, with absolute magnitude of 6.6.
  • It is 0.7 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 4837 with its spectral types of K3V
  • Number of Extrasolar Planets : 3
  • Name of the 1 Planet HD 153557 Ab radius 0.231455 mass 0.064000 orbital distance 0.068000
  • Name of the 2 Planet HD 153557 Ac radius 0.223526 mass 0.055000 orbital distance 0.111000
  • Name of the 3 Planet HD 153557 Ad radius 0.907830 mass 27.454000 orbital distance 21.449000
    (Illustration of the HD 153557 A's Planetary System)



    The Star HD 153557 A 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.400 AU ( 59901456.0 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.553 AU ( 82799466.3 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.843 AU ( 126168063.1 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.241 AU ( 185661831.9 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 153557 A)



    Kopparapu's Recent Venus for Star HD 153557 A distance : 0.436 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 153557 A distance : 0.553 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 153557 A distance : 0.534 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 153557 A distance : 0.585 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 153557 A distance : 1.008 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 153557 A distance : 1.063 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 153557 A)



  • Original Kopparapu Recent Venus for Star HD 153557 A distance : 0.431 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 153557 A distance : 0.570 AU
  • Original Kopparapu Moist Greenhouse for Star HD 153557 A distance : 0.571 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 153557 A distance : 1.025 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 153557 A distance : 1.066 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 153557 A)



    (Position in Stellar Map of star HD 153557 A )



    (Zoomed position in Stellar Map of star HD 153557 A (zoom level 3))

    (Synthetic Spectrum of star HD 74698*)
    *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