Imaginary Picture of omi CrB b
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Exoplanet Name : omi CrB b
Alternate Name :
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 1.5000 (Mjup) 476.9070 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.8300 (AU) 0.8300 (AU Est.)
Eccentricity : 0.1910
Orbital Period(Yrs) 0.5128
Orbital Period(Observed/Estimated) 187.30 (Days Obs.) 189.24 (Days Est.)
Star Radiation at Atmospheric Boundary: 97931.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 789.5 (K)
Blackbody T 0.3(K) 741.5 (K)
Blackbody T 0.7(K) 599.9 (K)
Tidally Locked Blackbody T 0.1(K) 938.9 (K)
Tidally Locked Blackbody T 0.3(K) 881.7 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : omi CrB
Alternate Name :
Star Distance(LY) : 270.0
Stellar Radius(Rsun) : 10.4 (Rsun Measured)
Stellar Mass(Msun) : 2.1 (Msun Measured) 2.2 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 4749 (K)
Spectral type : K0III
Metalicity : -0.3
Absolute Magnitude: 0.9
Apparent Magnitude: 5.5
Right Ascension(RA) 233.6750
Declination (DEC) 26.7147
Hubble Space Telescope Guide Star Catalog (GSC) ID 02031-01389
Discovered by
Discovery Paper - Authors "Bun'ei Sato, Masashi Omiya, Hiroki Harakawa, Hideyuki Izumiura, Eiji Kambe, Yoichi Takeda, Michitoshi Yoshida, Yoichi Itoh, Hiroyasu Ando, Eiichiro Kokubo, Shigeru Ida"
Discovery Paper - Title Substellar Companions to Seven Evolved Intermediate-Mass Stars
Discovery Paper - Journal Publ Astron Soc Jpn Nihon Tenmon Gakkai (2012) 64 (6): 135. DOI: https://doi.org/10.1093/pasj/64.6.135. Published: 25 December 2012
Discovery Paper - URL https://academic.oup.com/pasj/article/64/6/135/1422181/Substellar-Companions-to-Seven-Evolved
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=omi+CrB+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/omi%20CrB%20b/
omi CrB b
omi CrB b

  • omi CrB b is an exoplanet orbiting the star omi CrB, located about 270.0 light-years (82.8 pc) away from Solar System. Its discovery was publicly announced on 2012.
  • The host star omi CrB has apparent magnitude of 5.5, with absolute magnitude of 0.9.
  • It is 2.1 times more massive and 10.4 times bigger compared with our Sun. The surface temperature is 4749 with its spectral types of K0III
  • In this planetary system, the extrasolar planet omi CrB b orbits around the star omi CrB every 187.3 days with its orbital distance of 0.83 AU ( 124166232.7 km)
  • (Projected orbit of omi CrB b around its host star omi CrB)


  • The Star omi CrB 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 5.081 AU ( 760143858.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 7.024 AU ( 1050717461.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 10.702 AU ( 1601060888.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 15.749 AU ( 2356031234.9 km)
  • Radiation at Planetary Boundary of omi CrB b : 97931.86 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star omi CrB)



  • Kopparapu Recent Venus for Star omi CrB distance : 5.559 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star omi CrB distance : 7.038 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star omi CrB distance : 6.798 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star omi CrB distance : 7.463 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star omi CrB distance : 12.890 AU
  • Kopparapu Outer Boundary for Early Mars for Star omi CrB distance : 13.597 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star omi CrB)



  • Original Kopparapu Recent Venus for Star omi CrB distance : 5.490 AU
  • Original Kopparapu Runaway Greenhouse for Star omi CrB distance : 7.259 AU
  • Original Kopparapu Moist Greenhouse for Star omi CrB distance : 7.264 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star omi CrB distance : 13.103 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star omi CrB distance : 13.627 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star omi CrB)



    (Position in Stellar Map of star omi CrB and its Exoplanet omi CrB b)



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