Imaginary Picture of HD 95872 b

Display orbital revolution of HD 95872 b around the hoststar HD 95872
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Exoplanet Name : HD 95872 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 4.6000 (Mjup) 1462.5148 (Mearth)
Semi Major Axis / Orbital Distance Calculated 5.2000 (AU) 5.2000 (AU Est.)
Eccentricity : 0.0600
Orbital Period(Yrs) 11.9778
Orbital Period(Observed/Estimated) 4375.00 (Days Obs.) 4443.58 (Days Est.)
Surface Gravity (G Earth) 14.1240
Star Radiation at Atmospheric Boundary: 30.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 105.0 (K)
Blackbody T 0.3(K) 98.6 (K)
Blackbody T 0.7(K) 79.8 (K)
Tidally Locked Blackbody T 0.1(K) 124.9 (K)
Tidally Locked Blackbody T 0.3(K) 117.3 (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 95872
Alternate Name :
Star Distance(LY) : 221.7
Stellar Radius(Rsun) : 0.9 (Rsun Estimated)
Stellar Mass(Msun) : 0.9 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 10.0 (GY)
Temperature : 5312 (K)
Spectral type : K0V
UV portion[%]: 5.9
Visible portion[%]: 41.6
IR portion[%]: 52.6
Metalicity : 0.4
Absolute Magnitude: 5.7
Apparent Magnitude: 9.9
Right Ascension(RA) 165.8670
Declination (DEC) -22.0939
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Michael Endl, Erik J. Brugamyer, William D. Cochran, Phillip J. MacQueen, Paul Robertson, Stefano Meschiari, Ivan Ramirez, Matthew Shetrone, Kevin Gullikson, Marshall C. Johnson, Robert Wittenmyer, Jonathan Horner, David R. Ciardi, Elliott Horch, Attila E. Simon, Steve B. Howell, Mark Everett, Caroline Caldwell, Barbara G. Castanheira"
Discovery Paper - Title Two New Long-Period Giant Planets from the McDonald Observatory Planet Search and Two Stars with Long-Period Radial Velocity Signals Related to Stellar Activity Cycles
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+95872+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%2095872%20b/
HD 95872 b
HD 95872 b

  • HD 95872 b is an exoplanet orbiting the star HD 95872, located about 221.7 light-years (68.0 pc) away from Solar System. Its discovery was publicly announced on 2015.
  • The host star HD 95872 has apparent magnitude of 9.9, with absolute magnitude of 5.7.
  • It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5312 with its spectral types of K0V
  • In this planetary system, the extrasolar planet HD 95872 b orbits around the star HD 95872 every 4375.0 days with its orbital distance of 5.20 AU ( 777908927.6 km)
  • (Projected orbit of HD 95872 b around its host star HD 95872)


  • The Star HD 95872 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.563 AU ( 84246832.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.778 AU ( 116451138.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.186 AU ( 177445764.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.745 AU ( 261119216.0 km)
  • Radiation at Planetary Boundary of HD 95872 b : 30.65 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 95872)



  • Kopparapu Recent Venus for Star HD 95872 distance : 0.600 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 95872 distance : 0.759 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 95872 distance : 0.733 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 95872 distance : 0.804 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 95872 distance : 1.360 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 95872 distance : 1.435 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 95872)



  • Original Kopparapu Recent Venus for Star HD 95872 distance : 0.596 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 95872 distance : 0.781 AU
  • Original Kopparapu Moist Greenhouse for Star HD 95872 distance : 0.788 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 95872 distance : 1.383 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 95872 distance : 1.439 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 95872)



    (Position in Stellar Map of star HD 95872 and its Exoplanet HD 95872 b)



    (Zoomed position in Stellar Map of star HD 95872 and its Exoplanet HD 95872 b (zoom level 3))

    (Synthetic Spectrum of star HD 95872*)
    *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