Imaginary Picture of HD 93385 A d

Display orbital revolution of HD 93385 A d around the hoststar HD 93385 A
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Exoplanet Name : HD 93385 A d
Alternate Name : HD 93385 c
Status : Confirmed
Radius (Rjup / Re): 0.1971 (Rjup) 2.2089 (Rearth)
Mass (Mjup / Me): 0.0318 (Mjup) 10.1104 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.2570 (AU) 0.2570 (AU Est.)
Eccentricity : 0.2400
Orbital Period(Yrs) 0.1260
Orbital Period(Observed/Estimated) 46.02 (Days Obs.) 47.59 (Days Est.)
Surface Gravity (G Earth) 2.0722
Star Radiation at Atmospheric Boundary: 20694.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 535.3 (K)
Blackbody T 0.3(K) 502.7 (K)
Blackbody T 0.7(K) 406.7 (K)
Tidally Locked Blackbody T 0.1(K) 636.6 (K)
Tidally Locked Blackbody T 0.3(K) 597.8 (K)
Size Class: sub-Neptune-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 : HD 93385 A
Alternate Name : HD 93385
Star Distance(LY) : 139.0
Stellar Radius(Rsun) : 1.0 (Rsun Estimated)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5800 (K)
Spectral type : G2V
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : 0.0
Absolute Magnitude: 4.3
Apparent Magnitude: 7.5
Right Ascension(RA) 161.5630
Declination (DEC) -41.4644
Hubble Space Telescope Guide Star Catalog (GSC) ID 07731-01993
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+93385+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%2093385%20b/
HD 93385 A d
HD 93385 A d

  • HD 93385 A d is an exoplanet orbiting the star HD 93385 A, located about 139.0 light-years (42.6 pc) away from Solar System. Its discovery was publicly announced on 2011.
  • The host star HD 93385 A has apparent magnitude of 7.5, with absolute magnitude of 4.3.
  • It is 1.0 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5800 with its spectral types of G2V
  • In this planetary system, the extrasolar planet HD 93385 A d orbits around the star HD 93385 A every 46.0 days with its orbital distance of 0.26 AU ( 38446652.8 km)
  • (Projected orbit of HD 93385 A d around its host star HD 93385 A)


  • The Star HD 93385 A 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.723 AU ( 108196493.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.000 AU ( 149555829.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.523 AU ( 227889987.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.242 AU ( 335350100.1 km)
  • Radiation at Planetary Boundary of HD 93385 A d : 20694.20 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 93385 A)



  • Kopparapu Recent Venus for Star HD 93385 A distance : 0.749 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 93385 A distance : 0.948 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 93385 A distance : 0.916 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 93385 A distance : 1.004 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 93385 A distance : 1.673 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 93385 A distance : 1.765 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 93385 A)



  • Original Kopparapu Recent Venus for Star HD 93385 A distance : 0.750 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 93385 A distance : 0.974 AU
  • Original Kopparapu Moist Greenhouse for Star HD 93385 A distance : 0.992 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 93385 A distance : 1.703 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 93385 A distance : 1.771 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 93385 A)



    (Position in Stellar Map of star HD 93385 A and its Exoplanet HD 93385 A d)



    (Zoomed position in Stellar Map of star HD 93385 A and its Exoplanet HD 93385 A d (zoom level 3))

    (Synthetic Spectrum of star HD 93385 A*)
    *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