Imaginary Picture of BD-11 4672 c

Display orbital revolution of BD-11 4672 c around the hoststar BD-11 4672
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Exoplanet Name : BD-11 4672 c
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.2170 (Rjup) 2.4325 (Rearth)
Mass (Mjup / Me): 0.0484 (Mjup) 15.3755 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.3000 (AU) 0.3000 (AU Est.)
Eccentricity : 0.4000
Orbital Period(Yrs) 0.2031
Orbital Period(Observed/Estimated) 74.20 (Days Obs.) 79.42 (Days Est.)
Surface Gravity (G Earth) 2.5986
Star Radiation at Atmospheric Boundary: 1477.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 276.7 (K)
Blackbody T 0.3(K) 259.9 (K)
Blackbody T 0.7(K) 210.3 (K)
Tidally Locked Blackbody T 0.1(K) 329.1 (K)
Tidally Locked Blackbody T 0.3(K) 309.0 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection : Radial Velocity
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Habitable
Habitability by Kopparapu: Not habitable
Star Name : BD-11 4672
Alternate Name :
Star Distance(LY) : 88.8
Stellar Radius(Rsun) : 0.5 (Rsun Measured)
Stellar Mass(Msun) : 0.6 (Msun Measured) 0.7 (Msun Estimated)
Star Age : 4.4 (GY)
Temperature : 4475 (K)
Spectral type : K7V
UV portion[%]: 1.5
Visible portion[%]: 30.7
IR portion[%]: 67.8
Metalicity : -0.5
Absolute Magnitude: 7.8
Apparent Magnitude: 10.0
Right Ascension(RA) 278.3701
Declination (DEC) -11.6361
Hubble Space Telescope Guide Star Catalog (GSC) ID 05699-02129
Discovered by
Discovery Paper - Authors "Moutou,.; Lourto,.; Mayor,.; Bouchy,.; Benz,.; Lovis,.; Naef,.; Pepe,.; Queloz,.; Santos,..; S_gransan,.; Sousa,..; Udry,."
Discovery Paper - Title The HARPS search for southern extra-solar planets. XXXVII. Five new long-period giant planets and a system update
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=BD-11+4672+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/BD-114672%20b/
BD-11 4672 c
BD-11 4672 c

  • BD-11 4672 c is an exoplanet orbiting the star BD-11 4672, located about 88.8 light-years (27.2 pc) away from Solar System. Its discovery was publicly announced on 2020.
  • The host star BD-11 4672 has apparent magnitude of 10.0, with absolute magnitude of 7.8.
  • It is 0.6 times more massive and 0.5 times bigger compared with our Sun. The surface temperature is 4475 with its spectral types of K7V
  • In this planetary system, the extrasolar planet BD-11 4672 c orbits around the star BD-11 4672 every 74.2 days with its orbital distance of 0.30 AU ( 44879361.2 km)
  • (Projected orbit of BD-11 4672 c around its host star BD-11 4672)


  • The Star BD-11 4672 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.226 AU ( 33747960.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.312 AU ( 46648501.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.475 AU ( 71081992.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.699 AU ( 104600265.8 km)
  • Radiation at Planetary Boundary of BD-11 4672 c : 1477.55 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star BD-11 4672)



  • Kopparapu Recent Venus for Star BD-11 4672 distance : 0.249 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star BD-11 4672 distance : 0.316 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star BD-11 4672 distance : 0.305 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star BD-11 4672 distance : 0.335 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star BD-11 4672 distance : 0.585 AU
  • Kopparapu Outer Boundary for Early Mars for Star BD-11 4672 distance : 0.618 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star BD-11 4672)



  • Original Kopparapu Recent Venus for Star BD-11 4672 distance : 0.246 AU
  • Original Kopparapu Runaway Greenhouse for Star BD-11 4672 distance : 0.326 AU
  • Original Kopparapu Moist Greenhouse for Star BD-11 4672 distance : 0.326 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star BD-11 4672 distance : 0.595 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star BD-11 4672 distance : 0.619 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star BD-11 4672)



    (Position in Stellar Map of star BD-11 4672 and its Exoplanet BD-11 4672 c)



    (Zoomed position in Stellar Map of star BD-11 4672 and its Exoplanet BD-11 4672 c (zoom level 3))

    (Synthetic Spectrum of star BD-11 4672*)
    *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