HD 177830 A

Display orbital revolution around the star HD 177830 A
Imaginary Picture of Star HD 177830 A
Star Name : HD 177830 A
Alternate Name : HD 177830
Star Distance (LY/pc): 204.6148 (LY) 62.7353 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 2.9900 (Rsun, estimated)
Stellar Mass (Msun): 1.4700 (Msun/observed) 1.4700 (Msun/estimated)
Spectral type : K0IV
Metalicity : 0.5500
Absolute Magnitude : 3.19
Apparent Magnitude : 7.18
Right Ascension(RA) : 286.33333
Declination(DEC) : 25.92056
  • This is the HD 177830 A . The star HD 177830 A islocated about 204.6 light-years (62.7 pc) away from our Solar System.
  • The star HD 177830 A has apparent magnitude of 7.2, with absolute magnitude of 3.2.
  • It is 1.5 times more massive and 3.0 times bigger compared with our Sun. The surface temperature is 4948 with its spectral types of K0IV
  • Number of Extrasolar Planets : 2
  • Name of the 1 Planet HD 177830 A b radius 0.907830 mass 1.490000 orbital distance 1.221800
  • Name of the 2 Planet HD 177830 A c radius 0.281544 mass 0.150000 orbital distance 0.513700
    (Illustration of the HD 177830 A's Planetary System)



    The Star HD 177830 A 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.586 AU ( 237240419.2 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.192 AU ( 327928257.6 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.340 AU ( 499690094.3 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.915 AU ( 735315863.7 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 177830 A)



    Kopparapu's Recent Venus for Star HD 177830 A distance : 1.720 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 177830 A distance : 2.177 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 177830 A distance : 2.103 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 177830 A distance : 2.306 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 177830 A distance : 3.955 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 177830 A distance : 4.171 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 177830 A)



  • Original Kopparapu Recent Venus for Star HD 177830 A distance : 1.701 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 177830 A distance : 2.244 AU
  • Original Kopparapu Moist Greenhouse for Star HD 177830 A distance : 2.250 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 177830 A distance : 4.021 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 177830 A distance : 4.182 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 177830 A)



    (Position in Stellar Map of star HD 177830 A )



    (Zoomed position in Stellar Map of star HD 177830 A (zoom level 3))

    (Synthetic Spectrum of star HD 92788*)
    *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