HQ Tau A

Display orbital revolution around the star HQ Tau A
Imaginary Picture of Star HQ Tau A
Star Name : HQ Tau A
Alternate Name :
Star Distance (LY/pc): 524.2958 (LY) 160.7500 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.5600 (Rsun, estimated)
Stellar Mass (Msun): 0.4000 (Msun/observed) 0.4000 (Msun/estimated)
Spectral type : M0
Metalicity : 0.0100
Absolute Magnitude : 5.99
Apparent Magnitude : 12.02
Right Ascension(RA) : 68.94723
Declination(DEC) : 22.83936
  • This is the HQ Tau A . The star HQ Tau A islocated about 524.3 light-years (160.8 pc) away from our Solar System.
  • The star HQ Tau A has apparent magnitude of 12.0, with absolute magnitude of 6.0.
  • It is 0.4 times more massive and 1.6 times bigger compared with our Sun. The surface temperature is 3467 with its spectral types of M0
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HQ Tau Ab radius 0.907830 mass 50.100000 orbital distance 0.610000
    (Illustration of the HQ Tau A's Planetary System)



    The Star HQ Tau A 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.406 AU ( 60770162.0 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.562 AU ( 84000245.0 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.856 AU ( 127997784.2 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.259 AU ( 188354346.7 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HQ Tau A)



    Kopparapu's Recent Venus for Star HQ Tau A distance : 0.459 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HQ Tau A distance : 0.581 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HQ Tau A distance : 0.561 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HQ Tau A distance : 0.613 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HQ Tau A distance : 1.132 AU
    Kopparapu's Outer Boundary for Early Mars for Star HQ Tau A distance : 1.195 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HQ Tau A)



  • Original Kopparapu Recent Venus for Star HQ Tau A distance : 0.455 AU
  • Original Kopparapu Runaway Greenhouse for Star HQ Tau A distance : 0.602 AU
  • Original Kopparapu Moist Greenhouse for Star HQ Tau A distance : 0.603 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HQ Tau A distance : 1.150 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HQ Tau A distance : 1.196 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HQ Tau A)



    (Position in Stellar Map of star HQ Tau A )



    (Zoomed position in Stellar Map of star HQ Tau A (zoom level 3))

    (Synthetic Spectrum of star HD 149026*)
    *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