Imaginary Picture of HD 65216 A c

Display orbital revolution of HD 65216 A c around the hoststar HD 65216 A
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Exoplanet Name : HD 65216 A c
Alternate Name : HD 65216 c
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 2.0300 (Mjup) 645.4141 (Mearth)
Semi Major Axis / Orbital Distance Calculated 5.7500 (AU) 5.7500 (AU Est.)
Eccentricity : 0.1700
Orbital Period(Yrs) 14.7019
Orbital Period(Observed/Estimated) 5370.00 (Days Obs.) 5250.47 (Days Est.)
Surface Gravity (G Earth) 6.2330
Star Radiation at Atmospheric Boundary: 29.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 103.8 (K)
Blackbody T 0.3(K) 97.4 (K)
Blackbody T 0.7(K) 78.8 (K)
Tidally Locked Blackbody T 0.1(K) 123.4 (K)
Tidally Locked Blackbody T 0.3(K) 115.9 (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 65216 A
Alternate Name : HD 65216
Star Distance(LY) : 115.2
Stellar Radius(Rsun) : 0.9 (Rsun Estimated)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5666 (K)
Spectral type : G5 V
UV portion[%]: 7.5
Visible portion[%]: 44.2
IR portion[%]: 48.3
Metalicity : -0.1
Absolute Magnitude: 5.2
Apparent Magnitude: 8.0
Right Ascension(RA) 118.4208
Declination (DEC) -63.6472
Hubble Space Telescope Guide Star Catalog (GSC) ID 08915-02808
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+65216+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%2065216%20c/
HD 65216 A c
HD 65216 A c

  • HD 65216 A c is an exoplanet orbiting the star HD 65216 A, located about 115.2 light-years (35.3 pc) away from Solar System. Its discovery was publicly announced on 2011.
  • The host star HD 65216 A has apparent magnitude of 8.0, with absolute magnitude of 5.2.
  • It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5666 with its spectral types of G5 V
  • In this planetary system, the extrasolar planet HD 65216 A c orbits around the star HD 65216 A every 5370.0 days with its orbital distance of 5.75 AU ( 860187756.5 km)
  • (Projected orbit of HD 65216 A c around its host star HD 65216 A)


  • The Star HD 65216 A 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.608 AU ( 90933891.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.840 AU ( 125694402.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.280 AU ( 191530453.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.884 AU ( 281845452.3 km)
  • Radiation at Planetary Boundary of HD 65216 A c : 29.20 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 65216 A)



  • Kopparapu Recent Venus for Star HD 65216 A distance : 0.634 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 65216 A distance : 0.803 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 65216 A distance : 0.776 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 65216 A distance : 0.851 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 65216 A distance : 1.423 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 65216 A distance : 1.501 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 65216 A)



  • Original Kopparapu Recent Venus for Star HD 65216 A distance : 0.634 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 65216 A distance : 0.826 AU
  • Original Kopparapu Moist Greenhouse for Star HD 65216 A distance : 0.838 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 65216 A distance : 1.448 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 65216 A distance : 1.505 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 65216 A)



    (Position in Stellar Map of star HD 65216 A and its Exoplanet HD 65216 A c)



    (Zoomed position in Stellar Map of star HD 65216 A and its Exoplanet HD 65216 A c (zoom level 3))

    (Synthetic Spectrum of star HD 65216 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