Imaginary Picture of HD 156279 c

Display orbital revolution of HD 156279 c around the hoststar HD 156279
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Exoplanet Name : HD 156279 c
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 9.7500 (Mjup) 3099.8955 (Mearth)
Semi Major Axis / Orbital Distance Calculated 5.4860 (AU) 5.4860 (AU Est.)
Eccentricity : 0.2610
Orbital Period(Yrs) 13.1914
Orbital Period(Observed/Estimated) 4818.30 (Days Obs.) 4866.68 (Days Est.)
Surface Gravity (G Earth) 29.9367
Star Radiation at Atmospheric Boundary: 32.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 106.5 (K)
Blackbody T 0.3(K) 100.1 (K)
Blackbody T 0.7(K) 81.0 (K)
Tidally Locked Blackbody T 0.1(K) 126.7 (K)
Tidally Locked Blackbody T 0.3(K) 119.0 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : "Radial Velocity, Astrometry"
Mass Detection : Astrometry
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 156279
Alternate Name :
Star Distance(LY) : 119.1
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 4.0 (GY)
Temperature : 5420 (K)
Spectral type : G7V
UV portion[%]: 6.5
Visible portion[%]: 42.6
IR portion[%]: 50.9
Metalicity : 0.1
Absolute Magnitude: 5.3
Apparent Magnitude: 8.1
Right Ascension(RA) 258.0967
Declination (DEC) 63.3522
Hubble Space Telescope Guide Star Catalog (GSC) ID 04202-00656
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+156279+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%20156279%20b/
HD 156279 c
HD 156279 c

  • HD 156279 c is an exoplanet orbiting the star HD 156279, located about 119.1 light-years (36.5 pc) away from Solar System. Its discovery was publicly announced on 2010.
  • The host star HD 156279 has apparent magnitude of 8.1, with absolute magnitude of 5.3.
  • It is 0.9 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5420 with its spectral types of G7V
  • In this planetary system, the extrasolar planet HD 156279 c orbits around the star HD 156279 every 4818.3 days with its orbital distance of 5.49 AU ( 820693918.7 km)
  • (Projected orbit of HD 156279 c around its host star HD 156279)


  • The Star HD 156279 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.612 AU ( 91491357.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.845 AU ( 126464966.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.288 AU ( 192704621.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.896 AU ( 283573292.7 km)
  • Radiation at Planetary Boundary of HD 156279 c : 32.47 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 156279)



  • Kopparapu Recent Venus for Star HD 156279 distance : 0.647 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 156279 distance : 0.820 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 156279 distance : 0.792 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 156279 distance : 0.868 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 156279 distance : 1.463 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 156279 distance : 1.543 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 156279)



  • Original Kopparapu Recent Venus for Star HD 156279 distance : 0.644 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 156279 distance : 0.843 AU
  • Original Kopparapu Moist Greenhouse for Star HD 156279 distance : 0.852 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 156279 distance : 1.488 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 156279 distance : 1.547 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 156279)



    (Position in Stellar Map of star HD 156279 and its Exoplanet HD 156279 c)



    (Zoomed position in Stellar Map of star HD 156279 and its Exoplanet HD 156279 c (zoom level 3))

    (Synthetic Spectrum of star HD 156279*)
    *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