42 Dra

Display orbital revolution around the star 42 Dra
Imaginary Picture of Star 42 Dra
Star Name : 42 Dra
Alternate Name :
Star Distance (LY/pc): 314.8224 (LY) 96.5251 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 22.0300 (Rsun, estimated)
Stellar Mass (Msun): 0.9800 (Msun/observed) 0.9800 (Msun/estimated)
Spectral type : K1.5III
Metalicity : -0.4600
Absolute Magnitude : -0.09
Apparent Magnitude : 4.83
Right Ascension(RA) : 276.49641
Declination(DEC) : 65.56361
  • This is the 42 Dra . The star 42 Dra islocated about 314.8 light-years (96.5 pc) away from our Solar System.
  • The star 42 Dra has apparent magnitude of 4.8, with absolute magnitude of -0.1.
  • It is 1.0 times more massive and 22.0 times bigger compared with our Sun. The surface temperature is 4200 with its spectral types of K1.5III
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet 42 Dra b radius 1.049875 mass 3.880000 orbital distance 1.190000
    (Illustration of the 42 Dra's Planetary System)



    The Star 42 Dra 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 8.419 AU ( 1259421753.4 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 11.637 AU ( 1740849989.5 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 17.732 AU ( 2652670134.7 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 26.093 AU ( 3903520309.3 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 42 Dra)



    Kopparapu's Recent Venus for Star 42 Dra distance : 9.385 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star 42 Dra distance : 11.880 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star 42 Dra distance : 11.474 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star 42 Dra distance : 12.571 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star 42 Dra distance : 22.323 AU
    Kopparapu's Outer Boundary for Early Mars for Star 42 Dra distance : 23.549 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star 42 Dra)



  • Original Kopparapu Recent Venus for Star 42 Dra distance : 9.263 AU
  • Original Kopparapu Runaway Greenhouse for Star 42 Dra distance : 12.277 AU
  • Original Kopparapu Moist Greenhouse for Star 42 Dra distance : 12.256 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 42 Dra distance : 22.682 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star 42 Dra distance : 23.589 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star 42 Dra)



    (Position in Stellar Map of star 42 Dra )



    (Zoomed position in Stellar Map of star 42 Dra (zoom level 3))

    (Synthetic Spectrum of star K2-35*)
    *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