HD 1397

Display orbital revolution around the star HD 1397
Imaginary Picture of Star HD 1397
Star Name : HD 1397
Alternate Name :
Star Distance (LY/pc): 260.1215 (LY) 79.7537 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 2.3280 (Rsun, estimated)
Stellar Mass (Msun): 1.3220 (Msun/observed) 1.3220 (Msun/estimated)
Spectral type : G5III
Metalicity : 0.2700
Absolute Magnitude : 3.39
Apparent Magnitude : 7.90
Right Ascension(RA) : 4.44647
Declination(DEC) : -66.35889
  • This is the HD 1397 . The star HD 1397 islocated about 260.1 light-years (79.8 pc) away from our Solar System.
  • The star HD 1397 has apparent magnitude of 7.9, with absolute magnitude of 3.4.
  • It is 1.3 times more massive and 2.3 times bigger compared with our Sun. The surface temperature is 5528 with its spectral types of G5III
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HD 1397 b radius 1.026000 mass 0.415000 orbital distance 0.109700
    (Illustration of the HD 1397's Planetary System)



    The Star HD 1397 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.541 AU ( 230556386.7 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.130 AU ( 318689178.0 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.246 AU ( 485611781.5 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.777 AU ( 714599009.7 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 1397)



    Kopparapu's Recent Venus for Star HD 1397 distance : 1.621 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 1397 distance : 2.053 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 1397 distance : 1.983 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 1397 distance : 2.174 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 1397 distance : 3.651 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 1397 distance : 3.851 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 1397)



  • Original Kopparapu Recent Venus for Star HD 1397 distance : 1.616 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 1397 distance : 2.111 AU
  • Original Kopparapu Moist Greenhouse for Star HD 1397 distance : 2.138 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 1397 distance : 3.715 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 1397 distance : 3.863 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 1397)



    (Position in Stellar Map of star HD 1397 )



    (Zoomed position in Stellar Map of star HD 1397 (zoom level 3))

    (Synthetic Spectrum of star HAT-P-42*)
    *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