Imaginary Picture of HD 97658 b
/
Exoplanet Name : HD 97658 b
Alternate Name :
Radius (Rjup / Re): 0.2005 (Rjup) 2.2471 (Rearth)
Mass (Mjup / Me): 0.0238 (Mjup) 7.5510 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0800 (AU) 0.0800 (AU Est.)
Eccentricity : 0.0780
Orbital Period(Yrs) 0.0260
Orbital Period(Observed/Estimated) 9.49 (Days Obs.) 8.96 (Days Est.)
Star Radiation at Atmospheric Boundary: 72951.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 733.5 (K)
Blackbody T 0.3(K) 688.8 (K)
Blackbody T 0.7(K) 557.3 (K)
Tidally Locked Blackbody T 0.1(K) 872.3 (K)
Tidally Locked Blackbody T 0.3(K) 819.2 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 97658
Alternate Name :
Star Distance(LY) : 68.8
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5170 (K)
Spectral type : K1V
Metalicity : -0.2
Absolute Magnitude: 4.6
Apparent Magnitude: 6.3
Right Ascension(RA) 168.6382
Declination (DEC) 25.7103
Hubble Space Telescope Guide Star Catalog (GSC) ID 01981-01168
Discovered by
Discovery Paper - Authors CUTRI R.M.; SKRUTSKIE M.F.; VAN DYK S.; BEICHMAN C.A.; CARPENTER J.M.; CHESTER T.; CAMBRESY L.; EVANS T.; FOWLER J.; GIZIS J.; HOWARD E.; HUCHRA J.; JARRETT T.; KOPAN E.L.; KIRKPATRICK J.D.; LIGHT R.M.; MARSH K.A.; McCALLON H.; SCHNEIDER S.; STIENING R.; SYKES M.; WEINBERG M.; WHEATON W.A.; WHEELOCK S.; ZACARIAS N.
Discovery Paper - Title 2MASS All Sky Catalog of point sources.
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+97658+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%2097658%20b/
HD 97658 b
HD 97658 b

  • HD 97658 b is an exoplanet orbiting the star HD 97658, located about 68.8 light-years (21.1 pc) away from Solar System. Its discovery was publicly announced on 2010.
  • The host star HD 97658 has apparent magnitude of 6.3, with absolute magnitude of 4.6.
  • It is 0.8 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 5170 with its spectral types of K1V
  • In this planetary system, the extrasolar planet HD 97658 b orbits around the star HD 97658 every 9.5 days with its orbital distance of 0.08 AU ( 11967829.7 km)
  • (Projected orbit of HD 97658 b around its host star HD 97658)


  • The Star HD 97658 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.423 AU ( 63235660.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.584 AU ( 87408208.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.890 AU ( 133190765.9 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.310 AU ( 195996046.7 km)
  • Radiation at Planetary Boundary of HD 97658 b : 72951.25 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 97658)



  • Kopparapu Recent Venus for Star HD 97658 distance : 0.453 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 97658 distance : 0.574 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 97658 distance : 0.555 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 97658 distance : 0.608 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 97658 distance : 1.034 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 97658 distance : 1.090 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 97658)



  • Original Kopparapu Recent Venus for Star HD 97658 distance : 0.449 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 97658 distance : 0.591 AU
  • Original Kopparapu Moist Greenhouse for Star HD 97658 distance : 0.595 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 97658 distance : 1.051 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 97658 distance : 1.093 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 97658)



    (Position in Stellar Map of star HD 97658 and its Exoplanet HD 97658 b)



    (Zoomed position in Stellar Map of star HD 97658 and its Exoplanet HD 97658 b (zoom level 3))