Imaginary Picture of HD 112640 b

Display orbital revolution of HD 112640 b around the hoststar HD 112640
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Exoplanet Name : HD 112640 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 5.0000 (Mjup) 1589.6900 (Mearth)
Semi Major Axis / Orbital Distance Calculated 1.7000 (AU) 1.7000 (AU Est.)
Eccentricity : 0.2400
Orbital Period(Yrs) 1.6788
Orbital Period(Observed/Estimated) 613.20 (Days Obs.) 603.43 (Days Est.)
Surface Gravity (G Earth) 15.3522
Star Radiation at Atmospheric Boundary: 192362.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 934.7 (K)
Blackbody T 0.3(K) 877.8 (K)
Blackbody T 0.7(K) 710.2 (K)
Tidally Locked Blackbody T 0.1(K) 1111.6 (K)
Tidally Locked Blackbody T 0.3(K) 1043.9 (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 112640
Alternate Name :
Star Distance(LY) : 1064.5
Stellar Radius(Rsun) : 39.0 (Rsun Measured)
Stellar Mass(Msun) : 1.8 (Msun Measured) 1.7 (Msun Estimated)
Star Age : 1.6 (GY)
Temperature : 4155 (K)
Spectral type : K0 III
UV portion[%]: 0.8
Visible portion[%]: 26.0
IR portion[%]: 73.2
Metalicity : -0.1
Absolute Magnitude: -1.1
Apparent Magnitude: 6.5
Right Ascension(RA) 194.2417
Declination (DEC) 67.2428
Hubble Space Telescope Guide Star Catalog (GSC) ID 04168-00694
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+112640+&submit=SIMBAD+search
Open Exoplanet Database Link
HD 112640 b
HD 112640 b

  • HD 112640 b is an exoplanet orbiting the star HD 112640, located about 1064.5 light-years (326.4 pc) away from Solar System. Its discovery was publicly announced on 2020.
  • The host star HD 112640 has apparent magnitude of 6.5, with absolute magnitude of -1.1.
  • It is 1.8 times more massive and 39.0 times bigger compared with our Sun. The surface temperature is 4155 with its spectral types of K0 III
  • In this planetary system, the extrasolar planet HD 112640 b orbits around the star HD 112640 every 613.2 days with its orbital distance of 1.70 AU ( 254316380.2 km)
  • (Projected orbit of HD 112640 b around its host star HD 112640)


  • The Star HD 112640 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 14.586 AU ( 2182050391.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 20.162 AU ( 3016163878.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 30.722 AU ( 4595966275.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 45.209 AU ( 6763165710.1 km)
  • Radiation at Planetary Boundary of HD 112640 b : 192362.45 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 112640)



  • Kopparapu Recent Venus for Star HD 112640 distance : 16.280 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 112640 distance : 20.607 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 112640 distance : 19.903 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 112640 distance : 21.871 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 112640 distance : 38.808 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 112640 distance : 40.939 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 112640)



  • Original Kopparapu Recent Venus for Star HD 112640 distance : 16.070 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 112640 distance : 21.299 AU
  • Original Kopparapu Moist Greenhouse for Star HD 112640 distance : 21.264 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 112640 distance : 39.431 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 112640 distance : 41.008 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 112640)



    (Position in Stellar Map of star HD 112640 and its Exoplanet HD 112640 b)



    (Zoomed position in Stellar Map of star HD 112640 and its Exoplanet HD 112640 b (zoom level 3))

    (Synthetic Spectrum of star HD 112640*)
    *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