Imaginary Picture of HD 102843 b

Display orbital revolution of HD 102843 b around the hoststar HD 102843
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Exoplanet Name : HD 102843 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 0.3584 (Mjup) 113.9490 (Mearth)
Semi Major Axis / Orbital Distance Calculated 4.0740 (AU) 4.0740 (AU Est.)
Eccentricity : 0.1100
Orbital Period(Yrs) 8.4622
Orbital Period(Observed/Estimated) 3090.90 (Days Obs.) 3081.48 (Days Est.)
Surface Gravity (G Earth) 1.1004
Star Radiation at Atmospheric Boundary: 54.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 121.4 (K)
Blackbody T 0.3(K) 114.0 (K)
Blackbody T 0.7(K) 92.3 (K)
Tidally Locked Blackbody T 0.1(K) 144.4 (K)
Tidally Locked Blackbody T 0.3(K) 135.6 (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 102843
Alternate Name :
Star Distance(LY) : 205.0
Stellar Radius(Rsun) : 0.9 (Rsun Estimated)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5436 (K)
Spectral type : K0V
UV portion[%]: 6.6
Visible portion[%]: 42.7
IR portion[%]: 50.7
Metalicity : 0.0
Absolute Magnitude: 18.0
Apparent Magnitude: 22.0
Right Ascension(RA) 177.5900
Declination (DEC) -1.2500
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK
Open Exoplanet Database Link
HD 102843 b
HD 102843 b

  • HD 102843 b is an exoplanet orbiting the star HD 102843, located about 205.0 light-years (62.9 pc) away from Solar System. Its discovery was publicly announced on 2019.
  • The host star HD 102843 has apparent magnitude of 22.0, with absolute magnitude of 18.0.
  • It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5436 with its spectral types of K0V
  • In this planetary system, the extrasolar planet HD 102843 b orbits around the star HD 102843 every 3090.9 days with its orbital distance of 4.07 AU ( 609461725.2 km)
  • (Projected orbit of HD 102843 b around its host star HD 102843)


  • The Star HD 102843 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.590 AU ( 88225950.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.815 AU ( 121951319.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.242 AU ( 185826822.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.828 AU ( 273452310.1 km)
  • Radiation at Planetary Boundary of HD 102843 b : 54.76 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 102843)



  • Kopparapu Recent Venus for Star HD 102843 distance : 0.624 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 102843 distance : 0.790 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 102843 distance : 0.763 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 102843 distance : 0.836 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 102843 distance : 1.409 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 102843 distance : 1.486 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 102843)



  • Original Kopparapu Recent Venus for Star HD 102843 distance : 0.621 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 102843 distance : 0.812 AU
  • Original Kopparapu Moist Greenhouse for Star HD 102843 distance : 0.821 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 102843 distance : 1.433 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 102843 distance : 1.490 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 102843)



    (Position in Stellar Map of star HD 102843 and its Exoplanet HD 102843 b)



    (Zoomed position in Stellar Map of star HD 102843 and its Exoplanet HD 102843 b (zoom level 3))

    (Synthetic Spectrum of star HD 102843*)
    *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