Imaginary Picture of OGLE-2018-BLG-1185 b

Display orbital revolution of OGLE-2018-BLG-1185 b around the hoststar OGLE-2018-BLG-1185
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Exoplanet Name : OGLE-2018-BLG-1185 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.1555 (Rjup) 1.7425 (Rearth)
Mass (Mjup / Me): 0.0264 (Mjup) 8.3936 (Mearth)
Semi Major Axis / Orbital Distance Calculated 1.5370 (AU) 1.5370 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0000
Orbital Period(Observed/Estimated) 0.00 (Days Obs.) 1144.20 (Days Est.)
Surface Gravity (G Earth) 2.7643
Star Radiation at Atmospheric Boundary: 8.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 76.6 (K)
Blackbody T 0.3(K) 71.9 (K)
Blackbody T 0.7(K) 58.2 (K)
Tidally Locked Blackbody T 0.1(K) 91.1 (K)
Tidally Locked Blackbody T 0.3(K) 85.5 (K)
Size Class: super-Earth-size
Mass Class:
Detection Type : Microlensing
Mass Detection : Microlensing
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : OGLE-2018-BLG-1185
Alternate Name :
Star Distance(LY) : 24135.5
Stellar Radius(Rsun) : 0.4 (Rsun Estimated)
Stellar Mass(Msun) : 0.4 (Msun Measured) 0.0 (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 : 0.0
Absolute Magnitude: 7.7
Apparent Magnitude: 22.0
Right Ascension(RA) 269.7917
Declination (DEC) -27.8350
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
OGLE-2018-BLG-1185 b
OGLE-2018-BLG-1185 b

  • OGLE-2018-BLG-1185 b is an exoplanet orbiting the star OGLE-2018-BLG-1185, located about 24135.5 light-years (7400.0 pc) away from Solar System. Its discovery was publicly announced on 2021.
  • The host star OGLE-2018-BLG-1185 has apparent magnitude of 22.0, with absolute magnitude of 7.7.
  • It is 0.4 times more massive and 0.4 times bigger compared with our Sun. The surface temperature is 3300 with its spectral types of M9
  • (Projected orbit of OGLE-2018-BLG-1185 b around its host star OGLE-2018-BLG-1185)


  • The Star OGLE-2018-BLG-1185 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.088 AU ( 13238888.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.122 AU ( 18299603.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.186 AU ( 27884546.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.274 AU ( 41033331.5 km)
  • Radiation at Planetary Boundary of OGLE-2018-BLG-1185 b : 8.66 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star OGLE-2018-BLG-1185)



  • Kopparapu Recent Venus for Star OGLE-2018-BLG-1185 distance : 0.100 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star OGLE-2018-BLG-1185 distance : 0.127 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star OGLE-2018-BLG-1185 distance : 0.122 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star OGLE-2018-BLG-1185 distance : 0.135 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star OGLE-2018-BLG-1185 distance : 0.249 AU
  • Kopparapu Outer Boundary for Early Mars for Star OGLE-2018-BLG-1185 distance : 0.263 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star OGLE-2018-BLG-1185)



  • Original Kopparapu Recent Venus for Star OGLE-2018-BLG-1185 distance : 0.100 AU
  • Original Kopparapu Runaway Greenhouse for Star OGLE-2018-BLG-1185 distance : 0.131 AU
  • Original Kopparapu Moist Greenhouse for Star OGLE-2018-BLG-1185 distance : 0.132 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star OGLE-2018-BLG-1185 distance : 0.253 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star OGLE-2018-BLG-1185 distance : 0.263 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star OGLE-2018-BLG-1185)



    (Position in Stellar Map of star OGLE-2018-BLG-1185 and its Exoplanet OGLE-2018-BLG-1185 b)



    (Zoomed position in Stellar Map of star OGLE-2018-BLG-1185 and its Exoplanet OGLE-2018-BLG-1185 b (zoom level 3))

    (Synthetic Spectrum of star OGLE-2018-BLG-1185*)
    *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