PSR B1957+20

Display orbital revolution around the star PSR B1957+20
Imaginary Picture of Star PSR B1957+20
Star Name : PSR B1957+20
Alternate Name :
Star Distance (LY/pc): 4990.1868 (LY) 1530.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.0000 (Rsun, estimated)
Stellar Mass (Msun): 1.4000 (Msun/observed) 1.4000 (Msun/estimated)
Spectral type : PSR
Metalicity : 0.0000
Absolute Magnitude : 11.08
Apparent Magnitude : 22.00
Right Ascension(RA) : 299.90321
Declination(DEC) : 20.80417
  • This is the PSR B1957+20 . The star PSR B1957+20 islocated about 4990.2 light-years (1530.0 pc) away from our Solar System.
  • The star PSR B1957+20 has apparent magnitude of 22.0, with absolute magnitude of 11.1.
  • It is 1.4 times more massive compared with our Sun. The surface temperature is 5500 with its spectral types of PSR
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet PSR B1957+20 b radius 0.907830 mass 22.000000 orbital distance 0.000000
    (Illustration of the PSR B1957+20's Planetary System)



    The Star PSR B1957+20 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.000 AU ( 1409.2 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.000 AU ( 1947.8 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.000 AU ( 2968.1 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.000 AU ( 4367.6 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star PSR B1957+20)



    Kopparapu's Recent Venus for Star PSR B1957+20 distance : 0.762 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star PSR B1957+20 distance : 0.965 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star PSR B1957+20 distance : 0.932 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star PSR B1957+20 distance : 1.022 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star PSR B1957+20 distance : 1.718 AU
    Kopparapu's Outer Boundary for Early Mars for Star PSR B1957+20 distance : 1.812 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star PSR B1957+20)



  • Original Kopparapu Recent Venus for Star PSR B1957+20 distance : 0.759 AU
  • Original Kopparapu Runaway Greenhouse for Star PSR B1957+20 distance : 0.992 AU
  • Original Kopparapu Moist Greenhouse for Star PSR B1957+20 distance : 1.004 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star PSR B1957+20 distance : 1.747 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star PSR B1957+20 distance : 1.817 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star PSR B1957+20)



    (Position in Stellar Map of star PSR B1957+20 )



    (Zoomed position in Stellar Map of star PSR B1957+20 (zoom level 3))

    (Synthetic Spectrum of star Kepler-1200*)
    *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