Imaginary Picture of HD 158259 e

Display orbital revolution of HD 158259 e around the hoststar HD 158259
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Exoplanet Name : HD 158259 e
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.1433 (Rjup) 1.6065 (Rearth)
Mass (Mjup / Me): 0.0191 (Mjup) 6.0822 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0800 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0218
Orbital Period(Observed/Estimated) 7.95 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 2.3567
Star Radiation at Atmospheric Boundary: 375957.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1105.2 (K)
Blackbody T 0.3(K) 1037.9 (K)
Blackbody T 0.7(K) 839.7 (K)
Tidally Locked Blackbody T 0.1(K) 1314.3 (K)
Tidally Locked Blackbody T 0.3(K) 1234.2 (K)
Size Class: super-Earth-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection : Spectrum
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 158259
Alternate Name :
Star Distance(LY) : 88.3
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6050 (K)
Spectral type : G0
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : 0.0
Absolute Magnitude: 4.3
Apparent Magnitude: 6.5
Right Ascension(RA) 261.3502
Declination (DEC) 52.7906
Hubble Space Telescope Guide Star Catalog (GSC) ID 03888-01886
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+158259+&submit=SIMBAD+search
Open Exoplanet Database Link
HD 158259 e
HD 158259 e

  • HD 158259 e is an exoplanet orbiting the star HD 158259, located about 88.3 light-years (27.1 pc) away from Solar System. Its discovery was publicly announced on 2019.
  • The host star HD 158259 has apparent magnitude of 6.5, with absolute magnitude of 4.3.
  • It is 1.1 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6050 with its spectral types of G0
  • In this planetary system, the extrasolar planet HD 158259 e orbits around the star HD 158259 every 8.0 days with its orbital distance of 0.08 AU ( 11966147.4 km)
  • (Projected orbit of HD 158259 e around its host star HD 158259)


  • The Star HD 158259 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.959 AU ( 143533816.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.326 AU ( 198401244.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.021 AU ( 302319589.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.974 AU ( 444876520.1 km)
  • Radiation at Planetary Boundary of HD 158259 e : 375957.86 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 158259)



  • Kopparapu Recent Venus for Star HD 158259 distance : 0.978 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 158259 distance : 1.239 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 158259 distance : 1.196 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 158259 distance : 1.311 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 158259 distance : 2.173 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 158259 distance : 2.292 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 158259)



  • Original Kopparapu Recent Venus for Star HD 158259 distance : 0.985 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 158259 distance : 1.272 AU
  • Original Kopparapu Moist Greenhouse for Star HD 158259 distance : 1.303 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 158259 distance : 2.212 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 158259 distance : 2.300 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 158259)



    (Position in Stellar Map of star HD 158259 and its Exoplanet HD 158259 e)



    (Zoomed position in Stellar Map of star HD 158259 and its Exoplanet HD 158259 e (zoom level 3))

    (Synthetic Spectrum of star HD 158259*)
    *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