PSR 1257+12

Display orbital revolution around the star PSR 1257+12
Imaginary Picture of Star PSR 1257+12
Star Name : PSR 1257+12
Alternate Name :
Star Distance (LY/pc): 2315.7076 (LY) 710.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 0.0000 (Rsun, estimated)
Stellar Mass (Msun): 0.0000 (Msun/observed) 1.3953 (Msun/estimated)
Spectral type : PSR
Metalicity : 0.0000
Absolute Magnitude : 12.74
Apparent Magnitude : 22.00
Right Ascension(RA) : 195.01667
Declination(DEC) : 12.68222
  • This is the PSR 1257+12 . The star PSR 1257+12 islocated about 2315.7 light-years (710.0 pc) away from our Solar System.
  • The star PSR 1257+12 has apparent magnitude of 22.0, with absolute magnitude of 12.7.
  • Number of Extrasolar Planets : 3
  • Name of the 1 Planet PSR 1257+12 b radius 0.030161 mass 0.000070 orbital distance 0.190000
  • Name of the 2 Planet PSR 1257+12 c radius 0.129874 mass 0.013000 orbital distance 0.360000
  • Name of the 3 Planet PSR 1257+12 d radius 0.127231 mass 0.012000 orbital distance 0.460000
    (Illustration of the PSR 1257+12's Planetary System)



    The Star PSR 1257+12 '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 1257+12)



    Kopparapu's Recent Venus for Star PSR 1257+12 distance : 0.762 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star PSR 1257+12 distance : 0.965 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star PSR 1257+12 distance : 0.932 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star PSR 1257+12 distance : 1.022 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star PSR 1257+12 distance : 1.718 AU
    Kopparapu's Outer Boundary for Early Mars for Star PSR 1257+12 distance : 1.812 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star PSR 1257+12)



  • Original Kopparapu Recent Venus for Star PSR 1257+12 distance : 0.759 AU
  • Original Kopparapu Runaway Greenhouse for Star PSR 1257+12 distance : 0.992 AU
  • Original Kopparapu Moist Greenhouse for Star PSR 1257+12 distance : 1.004 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star PSR 1257+12 distance : 1.747 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star PSR 1257+12 distance : 1.817 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star PSR 1257+12)



    (Position in Stellar Map of star PSR 1257+12 )



    (Zoomed position in Stellar Map of star PSR 1257+12 (zoom level 3))

    (Synthetic Spectrum of star Kepler-1525*)
    *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