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 : M9
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 ( 507.3 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.000 AU ( 701.2 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.000 AU ( 1068.5 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.000 AU ( 1572.3 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 : 0.116 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star PSR 1257 12 distance : 0.147 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star PSR 1257 12 distance : 0.142 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star PSR 1257 12 distance : 0.155 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star PSR 1257 12 distance : 0.288 AU
    Kopparapu's Outer Boundary for Early Mars for Star PSR 1257 12 distance : 0.304 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 : 0.115 AU
  • Original Kopparapu Runaway Greenhouse for Star PSR 1257 12 distance : 0.152 AU
  • Original Kopparapu Moist Greenhouse for Star PSR 1257 12 distance : 0.152 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star PSR 1257 12 distance : 0.293 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star PSR 1257 12 distance : 0.304 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-1241*)
    *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