HD 19994 A

Display orbital revolution around the star HD 19994 A
Imaginary Picture of Star HD 19994 A
Star Name : HD 19994 A
Alternate Name : "94 Cet, HD 19994, 94 Cet A"
Star Distance (LY/pc): 72.9937 (LY) 22.3800 (pc)
Stellar Radius (Rsun): 0.0000 (Rsun, measured) 1.9300 (Rsun, estimated)
Stellar Mass (Msun): 1.3400 (Msun/observed) 1.3400 (Msun/estimated)
Spectral type : F8 V
Metalicity : 0.2500
Absolute Magnitude : 3.32
Apparent Magnitude : 5.07
Right Ascension(RA) : 48.19349
Declination(DEC) : -1.19583
  • This is the HD 19994 A . The star HD 19994 A islocated about 73.0 light-years (22.4 pc) away from our Solar System.
  • The star HD 19994 A has apparent magnitude of 5.1, with absolute magnitude of 3.3.
  • It is 1.3 times more massive and 1.9 times bigger compared with our Sun. The surface temperature is 5984 with its spectral types of F8 V
  • Number of Extrasolar Planets : 1
  • Name of the 1 Planet HD 19994 A b radius 0.907830 mass 1.370000 orbital distance 1.305000
    (Illustration of the HD 19994 A's Planetary System)



    The Star HD 19994 A 's habitable zone is located at the following distance

    Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.497 AU ( 223974508.0 km)
    Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.069 AU ( 309591301.5 km)
    Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.153 AU ( 471748631.1 km)
    Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.640 AU ( 694198776.7 km)
    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 19994 A)



    Kopparapu's Recent Venus for Star HD 19994 A distance : 1.533 AU
    Kopparapu's Runaway Greenhouse for Earth-sized planet for Star HD 19994 A distance : 1.941 AU
    Kopparapu's Runaway Greenhouse for Super-Earth-sized planet for Star HD 19994 A distance : 1.874 AU
    Kopparapu's Runaway Greenhouse for Mars-sized planet for Star HD 19994 A distance : 2.054 AU
    Kopparapu's Outer Boundary for Maximum Greenhouse for Star HD 19994 A distance : 3.409 AU
    Kopparapu's Outer Boundary for Early Mars for Star HD 19994 A distance : 3.596 AU
    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 19994 A)



  • Original Kopparapu Recent Venus for Star HD 19994 A distance : 1.541 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 19994 A distance : 1.993 AU
  • Original Kopparapu Moist Greenhouse for Star HD 19994 A distance : 2.039 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 19994 A distance : 3.470 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 19994 A distance : 3.609 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 19994 A)



    (Position in Stellar Map of star HD 19994 A )



    (Zoomed position in Stellar Map of star HD 19994 A (zoom level 3))

    (Synthetic Spectrum of star HATS-39*)
    *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