Imaginary Picture of LHS-3154 b

Display orbital revolution of LHS-3154 b around the hoststar LHS-3154
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Exoplanet Name : LHS-3154 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 13.1500 (Mjup) 4180.8847 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0226 (AU) 0.0226 (AU Est.)
Eccentricity : 0.0760
Orbital Period(Yrs) 0.0102
Orbital Period(Observed/Estimated) 3.72 (Days Obs.) 3.71 (Days Est.)
Surface Gravity (G Earth) 40.3762
Star Radiation at Atmospheric Boundary: 3152.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 334.4 (K)
Blackbody T 0.3(K) 314.1 (K)
Blackbody T 0.7(K) 254.1 (K)
Tidally Locked Blackbody T 0.1(K) 397.7 (K)
Tidally Locked Blackbody T 0.3(K) 373.5 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection : Radial Velocity
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : LHS-3154
Alternate Name :
Star Distance(LY) : 51.4
Stellar Radius(Rsun) : 0.1 (Rsun Measured)
Stellar Mass(Msun) : 0.1 (Msun Measured) 0.1 (Msun Estimated)
Star Age : 5.0 (GY)
Temperature : 2861 (K)
Spectral type : M6.5
UV portion[%]: 0.1
Visible portion[%]: 4.8
IR portion[%]: 95.1
Metalicity : 0.0
Absolute Magnitude: 16.5
Apparent Magnitude: 17.5
Right Ascension(RA) 241.6375
Declination (DEC) 40.9069
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
LHS-3154 b
LHS-3154 b

  • LHS-3154 b is an exoplanet orbiting the star LHS-3154, located about 51.4 light-years (15.8 pc) away from Solar System. Its discovery was publicly announced on 2023.
  • The host star LHS-3154 has apparent magnitude of 17.5, with absolute magnitude of 16.5.
  • It is 0.1 times more massive and 0.1 times bigger compared with our Sun. The surface temperature is 2861 with its spectral types of M6.5
  • In this planetary system, the extrasolar planet LHS-3154 b orbits around the star LHS-3154 every 3.7 days with its orbital distance of 0.02 AU ( 3380911.9 km)
  • (Projected orbit of LHS-3154 b around its host star LHS-3154)


  • The Star LHS-3154 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.025 AU ( 3713828.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.034 AU ( 5133481.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.052 AU ( 7822290.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.077 AU ( 11510842.6 km)
  • Radiation at Planetary Boundary of LHS-3154 b : 3152.94 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star LHS-3154)



  • Kopparapu Recent Venus for Star LHS-3154 distance : 0.028 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star LHS-3154 distance : 0.036 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star LHS-3154 distance : 0.034 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star LHS-3154 distance : 0.038 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star LHS-3154 distance : 0.072 AU
  • Kopparapu Outer Boundary for Early Mars for Star LHS-3154 distance : 0.076 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star LHS-3154)



  • Original Kopparapu Recent Venus for Star LHS-3154 distance : 0.028 AU
  • Original Kopparapu Runaway Greenhouse for Star LHS-3154 distance : 0.037 AU
  • Original Kopparapu Moist Greenhouse for Star LHS-3154 distance : 0.037 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star LHS-3154 distance : 0.073 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star LHS-3154 distance : 0.076 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star LHS-3154)



    (Position in Stellar Map of star LHS-3154 and its Exoplanet LHS-3154 b)



    (Zoomed position in Stellar Map of star LHS-3154 and its Exoplanet LHS-3154 b (zoom level 3))

    (Synthetic Spectrum of star LHS-3154*)
    *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