Imaginary Picture of KMT-2018-BLG-0030 b

Display orbital revolution of KMT-2018-BLG-0030 b around the hoststar KMT-2018-BLG-0030
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Exoplanet Name : KMT-2018-BLG-0030 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 1.4500 (Mjup) 461.0101 (Mearth)
Semi Major Axis / Orbital Distance Calculated 4.3900 (AU) 4.3900 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0000
Orbital Period(Observed/Estimated) 0.00 (Days Obs.) 4704.37 (Days Est.)
Surface Gravity (G Earth) 4.4521
Star Radiation at Atmospheric Boundary: 1.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 50.9 (K)
Blackbody T 0.3(K) 47.8 (K)
Blackbody T 0.7(K) 38.7 (K)
Tidally Locked Blackbody T 0.1(K) 60.6 (K)
Tidally Locked Blackbody T 0.3(K) 56.9 (K)
Size Class: Jupiter-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 : KMT-2018-BLG-0030
Alternate Name :
Star Distance(LY) : 2087.4
Stellar Radius(Rsun) : 0.5 (Rsun Estimated)
Stellar Mass(Msun) : 0.5 (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: 13.0
Apparent Magnitude: 22.0
Right Ascension(RA) 264.5167
Declination (DEC) -28.0417
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
KMT-2018-BLG-0030 b
KMT-2018-BLG-0030 b

  • KMT-2018-BLG-0030 b is an exoplanet orbiting the star KMT-2018-BLG-0030, located about 2087.4 light-years (640.0 pc) away from Solar System. Its discovery was publicly announced on 2022.
  • The host star KMT-2018-BLG-0030 has apparent magnitude of 22.0, with absolute magnitude of 13.0.
  • It is 0.5 times more massive and 0.5 times bigger compared with our Sun. The surface temperature is 3300 with its spectral types of M9
  • (Projected orbit of KMT-2018-BLG-0030 b around its host star KMT-2018-BLG-0030)


  • The Star KMT-2018-BLG-0030 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.112 AU ( 16734425.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.155 AU ( 23131349.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.236 AU ( 35247058.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.347 AU ( 51867590.2 km)
  • Radiation at Planetary Boundary of KMT-2018-BLG-0030 b : 1.70 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star KMT-2018-BLG-0030)



  • Kopparapu Recent Venus for Star KMT-2018-BLG-0030 distance : 0.127 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star KMT-2018-BLG-0030 distance : 0.160 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star KMT-2018-BLG-0030 distance : 0.155 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star KMT-2018-BLG-0030 distance : 0.170 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star KMT-2018-BLG-0030 distance : 0.315 AU
  • Kopparapu Outer Boundary for Early Mars for Star KMT-2018-BLG-0030 distance : 0.332 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star KMT-2018-BLG-0030)



  • Original Kopparapu Recent Venus for Star KMT-2018-BLG-0030 distance : 0.126 AU
  • Original Kopparapu Runaway Greenhouse for Star KMT-2018-BLG-0030 distance : 0.166 AU
  • Original Kopparapu Moist Greenhouse for Star KMT-2018-BLG-0030 distance : 0.167 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star KMT-2018-BLG-0030 distance : 0.320 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star KMT-2018-BLG-0030 distance : 0.333 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star KMT-2018-BLG-0030)



    (Position in Stellar Map of star KMT-2018-BLG-0030 and its Exoplanet KMT-2018-BLG-0030 b)



    (Zoomed position in Stellar Map of star KMT-2018-BLG-0030 and its Exoplanet KMT-2018-BLG-0030 b (zoom level 3))

    (Synthetic Spectrum of star KMT-2018-BLG-0030*)
    *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