HAT-P-42

Display orbital revolution around the star HAT-P-42
Imaginary Picture of Star HAT-P-42
Star Name : HAT-P-42
Alternate Name :
Star Distance (LY/pc): 1457.9173 (LY) 447.0000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.5280 (Rsun, estimated)
Stellar Mass (Msun): 1.1790 (Msun/observed) 1.1790 (Msun/estimated)
Spectral type : G3
Metalicity : 0.2700
Absolute Magnitude : 3.92
Apparent Magnitude : 12.17
Right Ascension(RA) : 135.34437
Declination(DEC) : 6.09720
  • This is the HAT-P-42 . The star HAT-P-42 islocated about 1457.9 light-years (447.0 pc) away from our Solar System.
  • The star HAT-P-42 has apparent magnitude of 12.2, with absolute magnitude of 3.9.
  • It is 1.2 times more massive and 1.5 times bigger compared with our Sun. The surface temperature is 5743 with its spectral types of G3
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HAT-P-42 b radius 1.277000 mass 0.975000 orbital distance 0.057500
    (Illustration of the HAT-P-42's Planetary System)



    The Star HAT-P-42 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.092 AU ( 163327419.1 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.509 AU ( 225761175.7 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.300 AU ( 344010070.9 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.384 AU ( 506225889.4 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HAT-P-42)



    Kopparapu's Recent Venus for Star HAT-P-42 distance : 1.134 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HAT-P-42 distance : 1.436 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HAT-P-42 distance : 1.387 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HAT-P-42 distance : 1.521 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HAT-P-42 distance : 2.538 AU
    Kopparapu's Outer Boundary for Early Mars for Star HAT-P-42 distance : 2.677 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HAT-P-42)



  • Original Kopparapu Recent Venus for Star HAT-P-42 distance : 1.135 AU
  • Original Kopparapu Runaway Greenhouse for Star HAT-P-42 distance : 1.476 AU
  • Original Kopparapu Moist Greenhouse for Star HAT-P-42 distance : 1.501 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HAT-P-42 distance : 2.583 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HAT-P-42 distance : 2.686 AU

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



    (Position in Stellar Map of star HAT-P-42 )



    (Zoomed position in Stellar Map of star HAT-P-42 (zoom level 3))

    (Synthetic Spectrum of star GJ 3138*)
    *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