Imaginary Picture of 14 Her c

Display orbital revolution of 14 Her c around the hoststar 14 Her
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Exoplanet Name : 14 Her c
Alternate Name : HD 145675 c
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 5.8000 (Mjup) 1844.0404 (Mearth)
Semi Major Axis / Orbital Distance Calculated 16.4000 (AU) 16.4000 (AU Est.)
Eccentricity : 0.4500
Orbital Period(Yrs) 18.9071
Orbital Period(Observed/Estimated) 6906.00 (Days Obs.) 25570.24 (Days Est.)
Surface Gravity (G Earth) 17.8085
Star Radiation at Atmospheric Boundary: 1.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 51.8 (K)
Blackbody T 0.3(K) 48.7 (K)
Blackbody T 0.7(K) 39.4 (K)
Tidally Locked Blackbody T 0.1(K) 61.6 (K)
Tidally Locked Blackbody T 0.3(K) 57.9 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection : Radial Velocity
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : 14 Her
Alternate Name :
Star Distance(LY) : 59.0
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 12.3 (Msun Estimated)
Star Age : 5.1 (GY)
Temperature : 5311 (K)
Spectral type : K0 V
UV portion[%]: 5.9
Visible portion[%]: 41.5
IR portion[%]: 52.6
Metalicity : 0.4
Absolute Magnitude: 5.4
Apparent Magnitude: 6.7
Right Ascension(RA) 242.5958
Declination (DEC) 43.8217
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
14 Her c
14 Her c

  • 14 Her c is an exoplanet orbiting the star 14 Her, located about 59.0 light-years (18.1 pc) away from Solar System. Its discovery was publicly announced on 2006.
  • The host star 14 Her has apparent magnitude of 6.7, with absolute magnitude of 5.4.
  • It is 0.9 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 5311 with its spectral types of K0 V
  • In this planetary system, the extrasolar planet 14 Her c orbits around the star 14 Her every 6906.0 days with its orbital distance of 16.40 AU ( 2453405079.5 km)
  • (Projected orbit of 14 Her c around its host star 14 Her)


  • The Star 14 Her 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.433 AU ( 64720814.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.598 AU ( 89461079.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.911 AU ( 136318886.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.341 AU ( 200599213.5 km)
  • Radiation at Planetary Boundary of 14 Her c : 1.82 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 14 Her)



  • Kopparapu Recent Venus for Star 14 Her distance : 0.461 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star 14 Her distance : 0.583 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 14 Her distance : 0.563 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star 14 Her distance : 0.618 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star 14 Her distance : 1.045 AU
  • Kopparapu Outer Boundary for Early Mars for Star 14 Her distance : 1.102 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star 14 Her)



  • Original Kopparapu Recent Venus for Star 14 Her distance : 0.458 AU
  • Original Kopparapu Runaway Greenhouse for Star 14 Her distance : 0.600 AU
  • Original Kopparapu Moist Greenhouse for Star 14 Her distance : 0.605 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 14 Her distance : 1.063 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star 14 Her distance : 1.105 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star 14 Her)



    (Position in Stellar Map of star 14 Her and its Exoplanet 14 Her c)



    (Zoomed position in Stellar Map of star 14 Her and its Exoplanet 14 Her c (zoom level 3))

    (Synthetic Spectrum of star 14 Her*)
    *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