Imaginary Picture of HD 1605 b

Display orbital revolution of HD 1605 b around the hoststar HD 1605
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Exoplanet Name : HD 1605 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 0.9600 (Mjup) 305.2205 (Mearth)
Semi Major Axis / Orbital Distance Calculated 1.4800 (AU) 1.4800 (AU Est.)
Eccentricity : 0.0780
Orbital Period(Yrs) 1.5822
Orbital Period(Observed/Estimated) 577.90 (Days Obs.) 574.58 (Days Est.)
Surface Gravity (G Earth) 2.9476
Star Radiation at Atmospheric Boundary: 4139.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 358.0 (K)
Blackbody T 0.3(K) 336.2 (K)
Blackbody T 0.7(K) 272.0 (K)
Tidally Locked Blackbody T 0.1(K) 425.7 (K)
Tidally Locked Blackbody T 0.3(K) 399.8 (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 1605
Alternate Name :
Star Distance(LY) : 292.5
Stellar Radius(Rsun) : 3.8 (Rsun Measured)
Stellar Mass(Msun) : 1.3 (Msun Measured) 1.3 (Msun Estimated)
Star Age : 4.6 (GY)
Temperature : 4757 (K)
Spectral type : K1 IV
UV portion[%]: 2.3
Visible portion[%]: 35.0
IR portion[%]: 62.7
Metalicity : 0.2
Absolute Magnitude: 2.8
Apparent Magnitude: 7.5
Right Ascension(RA) 5.1313
Declination (DEC) 30.9747
Hubble Space Telescope Guide Star Catalog (GSC) ID 02261-00371
Discovered by
Discovery Paper - Authors "Hiroki Harakawa, Bun¥¹¡£¥»­Æi Sato, Masashi Omiya, Debra A. Fischer, Yasunori Hori, Shigeru Ida, Eiji Kambe, Michitoshi Yoshida, Hideyuki Izumiura, Hisashi Koyano, Shogo Nagayama, Yasuhiro Shimizu, Norio Okada, Kiichi Okita, Akihiro Sakamoto, and Tomoyasu Yamamuro "
Discovery Paper - Title "FIVE NEW EXOPLANETS ORBITING THREE METAL-RICH, MASSIVE STARS: TWO-PLANET SYSTEMS INCLUDING LONG-PERIOD PLANETS, AND AN ECCENTRIC PLANET"
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+1605+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%201605%20b/
HD 1605 b
HD 1605 b

  • HD 1605 b is an exoplanet orbiting the star HD 1605, located about 292.5 light-years (89.7 pc) away from Solar System. Its discovery was publicly announced on 2015.
  • The host star HD 1605 has apparent magnitude of 7.5, with absolute magnitude of 2.8.
  • It is 1.3 times more massive and 3.8 times bigger compared with our Sun. The surface temperature is 4757 with its spectral types of K1 IV
  • In this planetary system, the extrasolar planet HD 1605 b orbits around the star HD 1605 every 577.9 days with its orbital distance of 1.48 AU ( 221404848.6 km)
  • (Projected orbit of HD 1605 b around its host star HD 1605)


  • The Star HD 1605 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.863 AU ( 278681418.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.575 AU ( 385210548.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.924 AU ( 586975628.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 5.774 AU ( 863760350.8 km)
  • Radiation at Planetary Boundary of HD 1605 b : 4139.82 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 1605)



  • Kopparapu Recent Venus for Star HD 1605 distance : 2.037 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 1605 distance : 2.579 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 1605 distance : 2.491 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 1605 distance : 2.735 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 1605 distance : 4.722 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 1605 distance : 4.981 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 1605)



  • Original Kopparapu Recent Venus for Star HD 1605 distance : 2.012 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 1605 distance : 2.660 AU
  • Original Kopparapu Moist Greenhouse for Star HD 1605 distance : 2.662 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 1605 distance : 4.801 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 1605 distance : 4.992 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 1605)



    (Position in Stellar Map of star HD 1605 and its Exoplanet HD 1605 b)



    (Zoomed position in Stellar Map of star HD 1605 and its Exoplanet HD 1605 b (zoom level 3))

    (Synthetic Spectrum of star HD 1605*)
    *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