Imaginary Picture of IC 4651 9122 b

Display orbital revolution of IC 4651 9122 b around the hoststar IC 4651 9122
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Exoplanet Name : IC 4651 9122 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 6.3000 (Mjup) 2003.0094 (Mearth)
Semi Major Axis / Orbital Distance Calculated 2.0380 (AU) 2.0380 (AU Est.)
Eccentricity : 0.1800
Orbital Period(Yrs) 2.0095
Orbital Period(Observed/Estimated) 734.00 (Days Obs.) 751.42 (Days Est.)
Surface Gravity (G Earth) 19.3437
Star Radiation at Atmospheric Boundary: 84.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 135.2 (K)
Blackbody T 0.3(K) 127.0 (K)
Blackbody T 0.7(K) 102.7 (K)
Tidally Locked Blackbody T 0.1(K) 160.8 (K)
Tidally Locked Blackbody T 0.3(K) 151.0 (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 : IC 4651 9122
Alternate Name :
Star Distance(LY) : 2802.7
Stellar Radius(Rsun) : 1.6 (Rsun Estimated)
Stellar Mass(Msun) : 2.0 (Msun Measured) 2.1 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3300 (K)
Spectral type : M9
UV portion[%]: 0.2
Visible portion[%]: 11.2
IR portion[%]: 88.6
Metalicity : 0.1
Absolute Magnitude: 12.3
Apparent Magnitude: 22.0
Right Ascension(RA) 261.2042
Declination (DEC) -49.9333
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
IC 4651 9122 b
IC 4651 9122 b

  • IC 4651 9122 b is an exoplanet orbiting the star IC 4651 9122, located about 2802.7 light-years (859.3 pc) away from Solar System. Its discovery was publicly announced on 2018.
  • The host star IC 4651 9122 has apparent magnitude of 22.0, with absolute magnitude of 12.3.
  • It is 2.0 times more massive and 1.6 times bigger compared with our Sun. The surface temperature is 3300 with its spectral types of M9
  • In this planetary system, the extrasolar planet IC 4651 9122 b orbits around the star IC 4651 9122 every 734.0 days with its orbital distance of 2.04 AU ( 304880460.5 km)
  • (Projected orbit of IC 4651 9122 b around its host star IC 4651 9122)


  • The Star IC 4651 9122 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.366 AU ( 54722673.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.506 AU ( 75641034.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.770 AU ( 115260197.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.134 AU ( 169610430.1 km)
  • Radiation at Planetary Boundary of IC 4651 9122 b : 84.18 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star IC 4651 9122)



  • Kopparapu Recent Venus for Star IC 4651 9122 distance : 0.414 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star IC 4651 9122 distance : 0.524 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star IC 4651 9122 distance : 0.506 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star IC 4651 9122 distance : 0.557 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star IC 4651 9122 distance : 1.030 AU
  • Kopparapu Outer Boundary for Early Mars for Star IC 4651 9122 distance : 1.087 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star IC 4651 9122)



  • Original Kopparapu Recent Venus for Star IC 4651 9122 distance : 0.412 AU
  • Original Kopparapu Runaway Greenhouse for Star IC 4651 9122 distance : 0.543 AU
  • Original Kopparapu Moist Greenhouse for Star IC 4651 9122 distance : 0.545 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star IC 4651 9122 distance : 1.046 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star IC 4651 9122 distance : 1.088 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star IC 4651 9122)



    (Position in Stellar Map of star IC 4651 9122 and its Exoplanet IC 4651 9122 b)



    (Zoomed position in Stellar Map of star IC 4651 9122 and its Exoplanet IC 4651 9122 b (zoom level 3))

    (Synthetic Spectrum of star IC 4651 9122*)
    *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