Imaginary Picture of HD 1690 b

Display orbital revolution of HD 1690 b around the hoststar HD 1690
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Exoplanet Name : HD 1690 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 6.1000 (Mjup) 1939.4218 (Mearth)
Semi Major Axis / Orbital Distance Calculated 1.3000 (AU) 1.3000 (AU Est.)
Eccentricity : 0.6400
Orbital Period(Yrs) 1.4592
Orbital Period(Observed/Estimated) 533.00 (Days Obs.) 518.55 (Days Est.)
Surface Gravity (G Earth) 18.7296
Star Radiation at Atmospheric Boundary: 75369.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 739.5 (K)
Blackbody T 0.3(K) 694.5 (K)
Blackbody T 0.7(K) 561.9 (K)
Tidally Locked Blackbody T 0.1(K) 879.4 (K)
Tidally Locked Blackbody T 0.3(K) 825.9 (K)
Size Class: Jupiter-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 1690
Alternate Name :
Star Distance(LY) : 2203.8
Stellar Radius(Rsun) : 16.7 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 6.7 (GY)
Temperature : 4393 (K)
Spectral type : K1III
UV portion[%]: 1.2
Visible portion[%]: 29.2
IR portion[%]: 69.6
Metalicity : -0.3
Absolute Magnitude: 0.0
Apparent Magnitude: 9.2
Right Ascension(RA) 5.3055
Declination (DEC) -8.2811
Hubble Space Telescope Guide Star Catalog (GSC) ID 05262-00825
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+1690+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%201690%20b/
HD 1690 b
HD 1690 b

  • HD 1690 b is an exoplanet orbiting the star HD 1690, located about 2203.8 light-years (675.7 pc) away from Solar System. Its discovery was publicly announced on 2010.
  • The host star HD 1690 has apparent magnitude of 9.2, with absolute magnitude of 0.0.
  • It is 1.1 times more massive and 16.7 times bigger compared with our Sun. The surface temperature is 4393 with its spectral types of K1III
  • In this planetary system, the extrasolar planet HD 1690 b orbits around the star HD 1690 every 533.0 days with its orbital distance of 1.30 AU ( 194477231.9 km)
  • (Projected orbit of HD 1690 b around its host star HD 1690)


  • The Star HD 1690 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 6.982 AU ( 1044472452.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 9.651 AU ( 1443733882.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 14.706 AU ( 2199930939.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 21.640 AU ( 3237294750.3 km)
  • Radiation at Planetary Boundary of HD 1690 b : 75369.54 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 1690)



  • Kopparapu Recent Venus for Star HD 1690 distance : 7.739 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 1690 distance : 9.797 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 1690 distance : 9.462 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 1690 distance : 10.394 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 1690 distance : 18.238 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 1690 distance : 19.239 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 1690)



  • Original Kopparapu Recent Venus for Star HD 1690 distance : 7.636 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 1690 distance : 10.118 AU
  • Original Kopparapu Moist Greenhouse for Star HD 1690 distance : 10.103 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 1690 distance : 18.534 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 1690 distance : 19.275 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 1690)



    (Position in Stellar Map of star HD 1690 and its Exoplanet HD 1690 b)



    (Zoomed position in Stellar Map of star HD 1690 and its Exoplanet HD 1690 b (zoom level 3))

    (Synthetic Spectrum of star HD 1690*)
    *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