Imaginary Picture of 11 Com b

Display orbital revolution of 11 Com b around the hoststar 11 Com
/
Exoplanet Name : 11 Com b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 16.1284 (Mjup) 5127.8312 (Mearth)
Semi Major Axis / Orbital Distance Calculated 1.2900 (AU) 1.2900 (AU Est.)
Eccentricity : 0.2310
Orbital Period(Yrs) 0.8926
Orbital Period(Observed/Estimated) 326.03 (Days Obs.) 325.68 (Days Est.)
Surface Gravity (G Earth) 49.5212
Star Radiation at Atmospheric Boundary: 134517.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 854.7 (K)
Blackbody T 0.3(K) 802.7 (K)
Blackbody T 0.7(K) 649.5 (K)
Tidally Locked Blackbody T 0.1(K) 1016.5 (K)
Tidally Locked Blackbody T 0.3(K) 954.6 (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 : 11 Com
Alternate Name :
Star Distance(LY) : 289.9
Stellar Radius(Rsun) : 19.0 (Rsun Measured)
Stellar Mass(Msun) : 2.7 (Msun Measured) 2.7 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 4742 (K)
Spectral type : G8 III
UV portion[%]: 2.3
Visible portion[%]: 34.8
IR portion[%]: 62.9
Metalicity : -0.3
Absolute Magnitude: -0.0
Apparent Magnitude: 4.7
Right Ascension(RA) 185.1792
Declination (DEC) 17.7928
Hubble Space Telescope Guide Star Catalog (GSC) ID 01445-02560
Discovered by
Discovery Paper - Authors "Liu,.-J.; Sato,un'ei; Zhao,.; Noguchi,unio; Wang,.; Kambe,iji; Ando,iroyasu; Izumiura,ideyuki; Chen,.-Q.; Okada,orio; Toyota,ri; Omiya,asashi; Masuda,eiji; Takeda,oichi; Murata,aisuke; Itoh,oichi; Yoshida,ichitoshi; Kokubo,iichiro; Ida,higeru"
Discovery Paper - Title A Substellar Companion to the Intermediate-Mass Giant 11 Comae
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=11+Com+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/11%20Com%20b/
11 Com b
11 Com b

  • 11 Com b is an exoplanet orbiting the star 11 Com, located about 289.9 light-years (88.9 pc) away from Solar System. Its discovery was publicly announced on 2007.
  • The host star 11 Com has apparent magnitude of 4.7, with absolute magnitude of -0.0.
  • It is 2.7 times more massive and 19.0 times bigger compared with our Sun. The surface temperature is 4742 with its spectral types of G8 III
  • In this planetary system, the extrasolar planet 11 Com b orbits around the star 11 Com every 326.0 days with its orbital distance of 1.29 AU ( 192981253.2 km)
  • (Projected orbit of 11 Com b around its host star 11 Com)


  • The Star 11 Com 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 9.256 AU ( 1384633429.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 12.794 AU ( 1913925247.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 19.495 AU ( 2916398526.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 28.688 AU ( 4291608191.3 km)
  • Radiation at Planetary Boundary of 11 Com b : 134517.50 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 11 Com)



  • Kopparapu Recent Venus for Star 11 Com distance : 10.129 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star 11 Com distance : 12.823 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 11 Com distance : 12.386 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star 11 Com distance : 13.597 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star 11 Com distance : 23.494 AU
  • Kopparapu Outer Boundary for Early Mars for Star 11 Com distance : 24.782 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star 11 Com)



  • Original Kopparapu Recent Venus for Star 11 Com distance : 10.002 AU
  • Original Kopparapu Runaway Greenhouse for Star 11 Com distance : 13.227 AU
  • Original Kopparapu Moist Greenhouse for Star 11 Com distance : 13.235 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 11 Com distance : 23.882 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star 11 Com distance : 24.836 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star 11 Com)



    (Position in Stellar Map of star 11 Com and its Exoplanet 11 Com b)



    (Zoomed position in Stellar Map of star 11 Com and its Exoplanet 11 Com b (zoom level 3))

    (Synthetic Spectrum of star 11 Com*)
    *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