Imaginary Picture of HD 219828 c

Display orbital revolution of HD 219828 c around the hoststar HD 219828
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Exoplanet Name : HD 219828 c
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 15.1000 (Mjup) 4800.8638 (Mearth)
Semi Major Axis / Orbital Distance Calculated 5.9600 (AU) 5.9600 (AU Est.)
Eccentricity : 0.8118
Orbital Period(Yrs) 13.1167
Orbital Period(Observed/Estimated) 4791.00 (Days Obs.) 4772.53 (Days Est.)
Surface Gravity (G Earth) 46.3635
Star Radiation at Atmospheric Boundary: 120.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 147.8 (K)
Blackbody T 0.3(K) 138.8 (K)
Blackbody T 0.7(K) 112.3 (K)
Tidally Locked Blackbody T 0.1(K) 175.7 (K)
Tidally Locked Blackbody T 0.3(K) 165.0 (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 : HD 219828
Alternate Name :
Star Distance(LY) : 264.5
Stellar Radius(Rsun) : 1.7 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 5.8 (GY)
Temperature : 5891 (K)
Spectral type : G0IV
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.2
Absolute Magnitude: 3.5
Apparent Magnitude: 8.0
Right Ascension(RA) 349.6947
Declination (DEC) 18.6458
Hubble Space Telescope Guide Star Catalog (GSC) ID 01716-01182
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+219828+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%20219828%20b/
HD 219828 c
HD 219828 c

  • HD 219828 c is an exoplanet orbiting the star HD 219828, located about 264.5 light-years (81.1 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star HD 219828 has apparent magnitude of 8.0, with absolute magnitude of 3.5.
  • It is 1.2 times more massive and 1.7 times bigger compared with our Sun. The surface temperature is 5891 with its spectral types of G0IV
  • In this planetary system, the extrasolar planet HD 219828 c orbits around the star HD 219828 every 4791.0 days with its orbital distance of 5.96 AU ( 891603309.4 km)
  • (Projected orbit of HD 219828 c around its host star HD 219828)


  • The Star HD 219828 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.278 AU ( 191198763.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.767 AU ( 264286657.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.692 AU ( 402714379.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.961 AU ( 592611850.9 km)
  • Radiation at Planetary Boundary of HD 219828 c : 120.16 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 219828)



  • Kopparapu Recent Venus for Star HD 219828 distance : 1.316 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 219828 distance : 1.666 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 219828 distance : 1.609 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 219828 distance : 1.764 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 219828 distance : 2.934 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 219828 distance : 3.094 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 219828)



  • Original Kopparapu Recent Venus for Star HD 219828 distance : 1.320 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 219828 distance : 1.711 AU
  • Original Kopparapu Moist Greenhouse for Star HD 219828 distance : 1.747 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 219828 distance : 2.985 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 219828 distance : 3.105 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 219828)



    (Position in Stellar Map of star HD 219828 and its Exoplanet HD 219828 c)



    (Zoomed position in Stellar Map of star HD 219828 and its Exoplanet HD 219828 c (zoom level 3))

    (Synthetic Spectrum of star HD 219828*)
    *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