Imaginary Picture of HD 175370 b

Display orbital revolution of HD 175370 b around the hoststar HD 175370
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Exoplanet Name : HD 175370 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 4.6000 (Mjup) 1462.5148 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.9800 (AU) 0.9800 (AU Est.)
Eccentricity : 0.2200
Orbital Period(Yrs) 0.9569
Orbital Period(Observed/Estimated) 349.50 (Days Obs.) 350.86 (Days Est.)
Surface Gravity (G Earth) 14.1240
Star Radiation at Atmospheric Boundary: 241304.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 989.2 (K)
Blackbody T 0.3(K) 929.0 (K)
Blackbody T 0.7(K) 751.6 (K)
Tidally Locked Blackbody T 0.1(K) 1176.4 (K)
Tidally Locked Blackbody T 0.3(K) 1104.7 (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 175370
Alternate Name :
Star Distance(LY) : 887.1
Stellar Radius(Rsun) : 23.5 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 8.7 (GY)
Temperature : 4301 (K)
Spectral type : K2 III
UV portion[%]: 0.9
Visible portion[%]: 27.5
IR portion[%]: 71.6
Metalicity : -0.5
Absolute Magnitude: 0.0
Apparent Magnitude: 7.2
Right Ascension(RA) 283.2488
Declination (DEC) 43.7136
Hubble Space Telescope Guide Star Catalog (GSC) ID 03131-01036
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+175370+&submit=SIMBAD+search
Open Exoplanet Database Link
HD 175370 b
HD 175370 b

  • HD 175370 b is an exoplanet orbiting the star HD 175370, located about 887.1 light-years (272.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star HD 175370 has apparent magnitude of 7.2, with absolute magnitude of 0.0.
  • It is 1.0 times more massive and 23.5 times bigger compared with our Sun. The surface temperature is 4301 with its spectral types of K2 III
  • In this planetary system, the extrasolar planet HD 175370 b orbits around the star HD 175370 every 349.5 days with its orbital distance of 0.98 AU ( 146605913.3 km)
  • (Projected orbit of HD 175370 b around its host star HD 175370)


  • The Star HD 175370 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 9.418 AU ( 1408850335.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 13.018 AU ( 1947399340.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 19.836 AU ( 2967405636.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 29.189 AU ( 4366667388.1 km)
  • Radiation at Planetary Boundary of HD 175370 b : 241304.91 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 175370)



  • Kopparapu Recent Venus for Star HD 175370 distance : 10.469 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 175370 distance : 13.252 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 175370 distance : 12.799 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 175370 distance : 14.062 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 175370 distance : 24.779 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 175370 distance : 26.139 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 175370)



  • Original Kopparapu Recent Venus for Star HD 175370 distance : 10.330 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 175370 distance : 13.690 AU
  • Original Kopparapu Moist Greenhouse for Star HD 175370 distance : 13.668 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 175370 distance : 25.179 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 175370 distance : 26.186 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 175370)



    (Position in Stellar Map of star HD 175370 and its Exoplanet HD 175370 b)



    (Zoomed position in Stellar Map of star HD 175370 and its Exoplanet HD 175370 b (zoom level 3))

    (Synthetic Spectrum of star HD 175370*)
    *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