Imaginary Picture of OGLE-2018-BLG-0677L b

Display orbital revolution of OGLE-2018-BLG-0677L b around the hoststar OGLE-2018-BLG-0677L
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Exoplanet Name : OGLE-2018-BLG-0677L b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.1285 (Rjup) 1.4400 (Rearth)
Mass (Mjup / Me): 0.0125 (Mjup) 3.9615 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.6300 (AU) 0.6300 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0000
Orbital Period(Observed/Estimated) 0.00 (Days Obs.) 577.57 (Days Est.)
Surface Gravity (G Earth) 1.9105
Star Radiation at Atmospheric Boundary: 5.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 69.3 (K)
Blackbody T 0.3(K) 65.1 (K)
Blackbody T 0.7(K) 52.6 (K)
Tidally Locked Blackbody T 0.1(K) 82.4 (K)
Tidally Locked Blackbody T 0.3(K) 77.4 (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-0677L
Alternate Name : "OGLE-2018-BLG-0680, KMT-2018-BLG-0816"
Star Distance(LY) : 25114.0
Stellar Radius(Rsun) : 0.1 (Rsun Estimated)
Stellar Mass(Msun) : 0.1 (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: 7.6
Apparent Magnitude: 22.0
Right Ascension(RA) 268.7500
Declination (DEC) -32.0167
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-0677L b
OGLE-2018-BLG-0677L b

  • OGLE-2018-BLG-0677L b is an exoplanet orbiting the star OGLE-2018-BLG-0677L, located about 25114.0 light-years (7700.0 pc) away from Solar System. Its discovery was publicly announced on 2020.
  • The host star OGLE-2018-BLG-0677L has apparent magnitude of 22.0, with absolute magnitude of 7.6.
  • It is 0.1 times more massive and 0.1 times bigger compared with our Sun. The surface temperature is 3300 with its spectral types of M9
  • (Projected orbit of OGLE-2018-BLG-0677L b around its host star OGLE-2018-BLG-0677L)


  • The Star OGLE-2018-BLG-0677L 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.030 AU ( 4443099.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.041 AU ( 6141524.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.063 AU ( 9358323.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.092 AU ( 13771182.8 km)
  • Radiation at Planetary Boundary of OGLE-2018-BLG-0677L b : 5.81 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star OGLE-2018-BLG-0677L)



  • Kopparapu Recent Venus for Star OGLE-2018-BLG-0677L distance : 0.034 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star OGLE-2018-BLG-0677L distance : 0.043 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star OGLE-2018-BLG-0677L distance : 0.041 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star OGLE-2018-BLG-0677L distance : 0.045 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star OGLE-2018-BLG-0677L distance : 0.084 AU
  • Kopparapu Outer Boundary for Early Mars for Star OGLE-2018-BLG-0677L distance : 0.088 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star OGLE-2018-BLG-0677L)



  • Original Kopparapu Recent Venus for Star OGLE-2018-BLG-0677L distance : 0.033 AU
  • Original Kopparapu Runaway Greenhouse for Star OGLE-2018-BLG-0677L distance : 0.044 AU
  • Original Kopparapu Moist Greenhouse for Star OGLE-2018-BLG-0677L distance : 0.044 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star OGLE-2018-BLG-0677L distance : 0.085 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star OGLE-2018-BLG-0677L distance : 0.088 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star OGLE-2018-BLG-0677L)



    (Position in Stellar Map of star OGLE-2018-BLG-0677L and its Exoplanet OGLE-2018-BLG-0677L b)



    (Zoomed position in Stellar Map of star OGLE-2018-BLG-0677L and its Exoplanet OGLE-2018-BLG-0677L b (zoom level 3))

    (Synthetic Spectrum of star OGLE-2018-BLG-0677L*)
    *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