Imaginary Picture of HD 108874 c

Display orbital revolution of HD 108874 c around the hoststar HD 108874
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Exoplanet Name : HD 108874 c
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 1.0180 (Mjup) 323.6609 (Mearth)
Semi Major Axis / Orbital Distance Calculated 2.6800 (AU) 2.6800 (AU Est.)
Eccentricity : 0.2500
Orbital Period(Yrs) 4.3963
Orbital Period(Observed/Estimated) 1605.80 (Days Obs.) 1602.48 (Days Est.)
Surface Gravity (G Earth) 3.1257
Star Radiation at Atmospheric Boundary: 217.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 171.3 (K)
Blackbody T 0.3(K) 160.9 (K)
Blackbody T 0.7(K) 130.2 (K)
Tidally Locked Blackbody T 0.1(K) 203.8 (K)
Tidally Locked Blackbody T 0.3(K) 191.4 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 108874
Alternate Name :
Star Distance(LY) : 193.3
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 7.3 (GY)
Temperature : 5407 (K)
Spectral type : G5
UV portion[%]: 6.4
Visible portion[%]: 42.5
IR portion[%]: 51.1
Metalicity : 0.1
Absolute Magnitude: 4.9
Apparent Magnitude: 8.8
Right Ascension(RA) 187.6083
Declination (DEC) 22.8797
Hubble Space Telescope Guide Star Catalog (GSC) ID 01989-02141
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+108874+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%20108874%20c/
HD 108874 c
HD 108874 c

  • HD 108874 c is an exoplanet orbiting the star HD 108874, located about 193.3 light-years (59.3 pc) away from Solar System. Its discovery was publicly announced on 2005.
  • The host star HD 108874 has apparent magnitude of 8.8, with absolute magnitude of 4.9.
  • It is 1.0 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 5407 with its spectral types of G5
  • In this planetary system, the extrasolar planet HD 108874 c orbits around the star HD 108874 every 1605.8 days with its orbital distance of 2.68 AU ( 400922293.5 km)
  • (Projected orbit of HD 108874 c around its host star HD 108874)


  • The Star HD 108874 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.773 AU ( 115592773.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.068 AU ( 159779420.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.627 AU ( 243468477.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.395 AU ( 358274530.2 km)
  • Radiation at Planetary Boundary of HD 108874 c : 217.21 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 108874)



  • Kopparapu Recent Venus for Star HD 108874 distance : 0.818 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 108874 distance : 1.036 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 108874 distance : 1.001 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 108874 distance : 1.098 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 108874 distance : 1.850 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 108874 distance : 1.952 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 108874)



  • Original Kopparapu Recent Venus for Star HD 108874 distance : 0.814 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 108874 distance : 1.066 AU
  • Original Kopparapu Moist Greenhouse for Star HD 108874 distance : 1.077 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 108874 distance : 1.882 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 108874 distance : 1.957 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 108874)



    (Position in Stellar Map of star HD 108874 and its Exoplanet HD 108874 c)



    (Zoomed position in Stellar Map of star HD 108874 and its Exoplanet HD 108874 c (zoom level 3))

    (Synthetic Spectrum of star HD 108874*)
    *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