Imaginary Picture of HD 4113 Ac

Display orbital revolution of HD 4113 Ac around the hoststar HD 4113 A
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Exoplanet Name : HD 4113 Ac
Alternate Name : HD 4113 C
Status : Confirmed
Radius (Rjup / Re): 1.4500 (Rjup) 16.2530 (Rearth)
Mass (Mjup / Me): 51.9130 (Mjup) 16505.1154 (Mearth)
Semi Major Axis / Orbital Distance Calculated 50.4380 (AU) 50.4380 (AU Est.)
Eccentricity : 0.6480
Orbital Period(Yrs) 348.3149
Orbital Period(Observed/Estimated) 127225.50 (Days Obs.) 130835.93 (Days Est.)
Surface Gravity (G Earth) 62.4811
Star Radiation at Atmospheric Boundary: 0.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 38.9 (K)
Blackbody T 0.3(K) 36.6 (K)
Blackbody T 0.7(K) 29.6 (K)
Tidally Locked Blackbody T 0.1(K) 46.3 (K)
Tidally Locked Blackbody T 0.3(K) 43.5 (K)
Size Class: Super-Jupiter-size
Mass Class:
Detection Type : "Imaging, Radial Velocity, Astrometry"
Mass Detection : Astrometry
Radius Detection : Flux
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 4113 A
Alternate Name : HD 4113
Star Distance(LY) : 136.6
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 4.8 (GY)
Temperature : 5655 (K)
Spectral type : G3V
UV portion[%]: 7.5
Visible portion[%]: 44.2
IR portion[%]: 48.3
Metalicity : 0.2
Absolute Magnitude: 4.8
Apparent Magnitude: 7.9
Right Ascension(RA) 10.8042
Declination (DEC) -37.9825
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK
Open Exoplanet Database Link
HD 4113 Ac
HD 4113 Ac

  • HD 4113 Ac is an exoplanet orbiting the star HD 4113 A, located about 136.6 light-years (41.9 pc) away from Solar System. Its discovery was publicly announced on 2018.
  • The host star HD 4113 A has apparent magnitude of 7.9, with absolute magnitude of 4.8.
  • It is 1.0 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5655 with its spectral types of G3V
  • In this planetary system, the extrasolar planet HD 4113 Ac orbits around the star HD 4113 A every 127225.5 days with its orbital distance of 50.44 AU ( 7545417402.4 km)
  • (Projected orbit of HD 4113 Ac around its host star HD 4113 A)


  • The Star HD 4113 A 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.751 AU ( 112344706.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.038 AU ( 155289743.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.582 AU ( 236627203.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.328 AU ( 348207295.5 km)
  • Radiation at Planetary Boundary of HD 4113 Ac : 0.58 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 4113 A)



  • Kopparapu Recent Venus for Star HD 4113 A distance : 0.784 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 4113 A distance : 0.993 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 4113 A distance : 0.959 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 4113 A distance : 1.052 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 4113 A distance : 1.759 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 4113 A distance : 1.856 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 4113 A)



  • Original Kopparapu Recent Venus for Star HD 4113 A distance : 0.783 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 4113 A distance : 1.021 AU
  • Original Kopparapu Moist Greenhouse for Star HD 4113 A distance : 1.036 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 4113 A distance : 1.790 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 4113 A distance : 1.862 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 4113 A)



    (Position in Stellar Map of star HD 4113 A and its Exoplanet HD 4113 Ac)



    (Zoomed position in Stellar Map of star HD 4113 A and its Exoplanet HD 4113 Ac (zoom level 3))

    (Synthetic Spectrum of star HD 4113 A*)
    *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