Imaginary Picture of 70 Vir b
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Exoplanet Name : 70 Vir b
Alternate Name :
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 6.6000 (Mjup) 2098.3908 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.4800 (AU) 0.4800 (AU Est.)
Eccentricity : 0.4300
Orbital Period(Yrs) 0.3194
Orbital Period(Observed/Estimated) 116.67 (Days Obs.) 126.64 (Days Est.)
Star Radiation at Atmospheric Boundary: 17947.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 516.6 (K)
Blackbody T 0.3(K) 485.1 (K)
Blackbody T 0.7(K) 392.5 (K)
Tidally Locked Blackbody T 0.1(K) 614.3 (K)
Tidally Locked Blackbody T 0.3(K) 576.9 (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 : 70 Vir
Alternate Name : HR 117176
Star Distance(LY) : 71.8
Stellar Radius(Rsun) : 2.0 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 7.1 (GY)
Temperature : 5432 (K)
Spectral type : G4 V
Metalicity : -0.1
Absolute Magnitude: 3.3
Apparent Magnitude: 5.0
Right Ascension(RA) 202.1075
Declination (DEC) 13.7867
Hubble Space Telescope Guide Star Catalog (GSC) ID 0
Discovered by
Discovery Paper - Authors "Stephen R. Kane, Tabetha S. Boyajian, Gregory W. Henry, Y. Katherina Feng, Natalie R. Hinkel, Debra A. Fischer, Kaspar von Braun, Andrew W. Howard, Jason T. Wright"
Discovery Paper - Title A Comprehensive Characterization of the 70 Virginis Planetary System
Discovery Paper - Journal "The Astrophysical Journal,olume 806,umber 1"
Discovery Paper - URL http://iopscience.iop.org/article/10.1088/0004-637X/806/1/60/meta
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=70+Vir+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/70%20Vir%20b/
70 Vir b
70 Vir b

  • 70 Vir b is an exoplanet orbiting the star 70 Vir, located about 71.8 light-years (22.0 pc) away from Solar System. Its discovery was publicly announced on 1996.
  • The host star 70 Vir has apparent magnitude of 5.0, with absolute magnitude of 3.3.
  • It is 0.9 times more massive and 2.0 times bigger compared with our Sun. The surface temperature is 5432 with its spectral types of G4 V
  • In this planetary system, the extrasolar planet 70 Vir b orbits around the star 70 Vir every 116.7 days with its orbital distance of 0.48 AU ( 71806977.9 km)
  • (Projected orbit of 70 Vir b around its host star 70 Vir)


  • The Star 70 Vir 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.258 AU ( 188192680.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.739 AU ( 260131465.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.650 AU ( 396382786.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.899 AU ( 583294635.1 km)
  • Radiation at Planetary Boundary of 70 Vir b : 17947.81 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 70 Vir)



  • Kopparapu Recent Venus for Star 70 Vir distance : 1.330 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star 70 Vir distance : 1.685 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 70 Vir distance : 1.627 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star 70 Vir distance : 1.785 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star 70 Vir distance : 3.006 AU
  • Kopparapu Outer Boundary for Early Mars for Star 70 Vir distance : 3.170 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star 70 Vir)



  • Original Kopparapu Recent Venus for Star 70 Vir distance : 1.324 AU
  • Original Kopparapu Runaway Greenhouse for Star 70 Vir distance : 1.733 AU
  • Original Kopparapu Moist Greenhouse for Star 70 Vir distance : 1.752 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 70 Vir distance : 3.058 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star 70 Vir distance : 3.180 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star 70 Vir)



    (Position in Stellar Map of star 70 Vir and its Exoplanet 70 Vir b)



    (Zoomed position in Stellar Map of star 70 Vir and its Exoplanet 70 Vir b (zoom level 3))