tau1 Gru

Display orbital revolution around the star tau1 Gru
Imaginary Picture of Star tau1 Gru
Star Name : tau1 Gru
Alternate Name : HD 216435
Star Distance (LY/pc): 108.6099 (LY) 33.3000 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 2.0000 (Rsun, estimated)
Stellar Mass (Msun): 1.3000 (Msun/observed) 1.3000 (Msun/estimated)
Spectral type : G0 V
Metalicity : 0.2440
Absolute Magnitude : 3.42
Apparent Magnitude : 6.03
Right Ascension(RA) : 343.40417
Declination(DEC) : -48.59806
  • This is the tau1 Gru . The star tau1 Gru islocated about 108.6 light-years (33.3 pc) away from our Solar System.
  • The star tau1 Gru has apparent magnitude of 6.0, with absolute magnitude of 3.4.
  • It is 1.3 times more massive and 2.0 times bigger compared with our Sun. The surface temperature is 5767 with its spectral types of G0 V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet tau1 Gru b radius 0.907830 mass 1.260000 orbital distance 2.560000
    (Illustration of the tau1 Gru's Planetary System)



    The Star tau1 Gru 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.441 AU ( 215569845.7 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.992 AU ( 297973862.0 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.035 AU ( 454046224.1 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.466 AU ( 668148909.3 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star tau1 Gru)



    Kopparapu's Recent Venus for Star tau1 Gru distance : 1.495 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star tau1 Gru distance : 1.893 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star tau1 Gru distance : 1.828 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star tau1 Gru distance : 2.004 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star tau1 Gru distance : 3.343 AU
    Kopparapu's Outer Boundary for Early Mars for Star tau1 Gru distance : 3.526 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star tau1 Gru)



  • Original Kopparapu Recent Venus for Star tau1 Gru distance : 1.496 AU
  • Original Kopparapu Runaway Greenhouse for Star tau1 Gru distance : 1.945 AU
  • Original Kopparapu Moist Greenhouse for Star tau1 Gru distance : 1.980 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star tau1 Gru distance : 3.402 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star tau1 Gru distance : 3.538 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star tau1 Gru)



    (Position in Stellar Map of star tau1 Gru )



    (Zoomed position in Stellar Map of star tau1 Gru (zoom level 3))

    (Synthetic Spectrum of star K2-393*)
    *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