BD+20 1790

Display orbital revolution around the star BD+20 1790
Imaginary Picture of Star BD+20 1790
Star Name : BD+20 1790
Alternate Name :
Star Distance (LY/pc): 82.8436 (LY) 25.4000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.7100 (Rsun, estimated)
Stellar Mass (Msun): 0.6300 (Msun/observed) 0.6300 (Msun/estimated)
Spectral type : K5V
Metalicity : 0.3000
Absolute Magnitude : 7.91
Apparent Magnitude : 9.93
Right Ascension(RA) : 110.93333
Declination(DEC) : 20.41417
  • This is the BD+20 1790 . The star BD+20 1790 islocated about 82.8 light-years (25.4 pc) away from our Solar System.
  • The star BD+20 1790 has apparent magnitude of 9.9, with absolute magnitude of 7.9.
  • It is 0.6 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4410 with its spectral types of K5V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet BD+20 1790 b radius 1.049869 mass 6.370000 orbital distance 0.066000
    (Illustration of the BD+20 1790's Planetary System)



    The Star BD+20 1790 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.299 AU ( 44750061.9 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.413 AU ( 61856280.1 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.630 AU ( 94255282.1 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.927 AU ( 138700776.7 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star BD+20 1790)



    Kopparapu's Recent Venus for Star BD+20 1790 distance : 0.331 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star BD+20 1790 distance : 0.420 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star BD+20 1790 distance : 0.405 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star BD+20 1790 distance : 0.444 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star BD+20 1790 distance : 0.780 AU
    Kopparapu's Outer Boundary for Early Mars for Star BD+20 1790 distance : 0.823 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star BD+20 1790)



  • Original Kopparapu Recent Venus for Star BD+20 1790 distance : 0.327 AU
  • Original Kopparapu Runaway Greenhouse for Star BD+20 1790 distance : 0.433 AU
  • Original Kopparapu Moist Greenhouse for Star BD+20 1790 distance : 0.433 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star BD+20 1790 distance : 0.793 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star BD+20 1790 distance : 0.825 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star BD+20 1790)



    (Position in Stellar Map of star BD+20 1790 )



    (Zoomed position in Stellar Map of star BD+20 1790 (zoom level 3))

    (Synthetic Spectrum of star BD+20 274*)
    *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