Imaginary Picture of HR 7672 b

Display orbital revolution of HR 7672 b around the hoststar HR 7672
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Exoplanet Name : HR 7672 b
Alternate Name : "15 Sge b, GJ 779 b, HD 190406 b"
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 61.5000 (Mjup) 19553.1870 (Mearth)
Semi Major Axis / Orbital Distance Calculated 14.0000 (AU) 14.0000 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0000
Orbital Period(Observed/Estimated) 0.00 (Days Obs.) 25798.88 (Days Est.)
Surface Gravity (G Earth) 188.8316
Star Radiation at Atmospheric Boundary: 8.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 75.9 (K)
Blackbody T 0.3(K) 71.3 (K)
Blackbody T 0.7(K) 57.7 (K)
Tidally Locked Blackbody T 0.1(K) 90.3 (K)
Tidally Locked Blackbody T 0.3(K) 84.8 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Imaging
Mass Detection : Spectrum
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HR 7672
Alternate Name : "15 Sge, GJ 779, HD 190406"
Star Distance(LY) : 57.8
Stellar Radius(Rsun) : 1.0 (Rsun Estimated)
Stellar Mass(Msun) : 0.6 (Msun Measured) 0.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6050 (K)
Spectral type : G0V
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.0
Absolute Magnitude: 4.6
Apparent Magnitude: 5.8
Right Ascension(RA) 301.0250
Declination (DEC) 17.0703
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
HR 7672 b
HR 7672 b

  • HR 7672 b is an exoplanet orbiting the star HR 7672, located about 57.8 light-years (17.7 pc) away from Solar System. Its discovery was publicly announced on 2002.
  • The host star HR 7672 has apparent magnitude of 5.8, with absolute magnitude of 4.6.
  • It is 0.6 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 6050 with its spectral types of G0V
  • (Projected orbit of HR 7672 b around its host star HR 7672)


  • The Star HR 7672 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.792 AU ( 118523320.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.095 AU ( 163830203.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.669 AU ( 249640973.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.456 AU ( 367357629.0 km)
  • Radiation at Planetary Boundary of HR 7672 b : 8.37 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HR 7672)



  • Kopparapu Recent Venus for Star HR 7672 distance : 0.808 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HR 7672 distance : 1.023 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HR 7672 distance : 0.988 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HR 7672 distance : 1.083 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HR 7672 distance : 1.794 AU
  • Kopparapu Outer Boundary for Early Mars for Star HR 7672 distance : 1.893 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HR 7672)



  • Original Kopparapu Recent Venus for Star HR 7672 distance : 0.813 AU
  • Original Kopparapu Runaway Greenhouse for Star HR 7672 distance : 1.050 AU
  • Original Kopparapu Moist Greenhouse for Star HR 7672 distance : 1.076 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HR 7672 distance : 1.826 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HR 7672 distance : 1.899 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HR 7672)



    (Position in Stellar Map of star HR 7672 and its Exoplanet HR 7672 b)



    (Zoomed position in Stellar Map of star HR 7672 and its Exoplanet HR 7672 b (zoom level 3))

    (Synthetic Spectrum of star HR 7672*)
    *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