Imaginary Picture of Gliese 49 b

Display orbital revolution of Gliese 49 b around the hoststar Gliese 49
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Exoplanet Name : Gliese 49 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.1405 (Rjup) 1.5753 (Rearth)
Mass (Mjup / Me): 0.0177 (Mjup) 5.6307 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0905 (AU) 0.0905 (AU Est.)
Eccentricity : 0.3630
Orbital Period(Yrs) 0.0379
Orbital Period(Observed/Estimated) 13.85 (Days Obs.) 13.86 (Days Est.)
Surface Gravity (G Earth) 2.2689
Star Radiation at Atmospheric Boundary: 8195.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 424.7 (K)
Blackbody T 0.3(K) 398.8 (K)
Blackbody T 0.7(K) 322.7 (K)
Tidally Locked Blackbody T 0.1(K) 505.0 (K)
Tidally Locked Blackbody T 0.3(K) 474.2 (K)
Size Class: super-Earth-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 : Gliese 49
Alternate Name :
Star Distance(LY) : 32.1
Stellar Radius(Rsun) : 0.5 (Rsun Measured)
Stellar Mass(Msun) : 0.5 (Msun Measured) 0.5 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3805 (K)
Spectral type : M1.5V
UV portion[%]: 0.4
Visible portion[%]: 19.6
IR portion[%]: 80.0
Metalicity : 0.1
Absolute Magnitude: 9.6
Apparent Magnitude: 9.6
Right Ascension(RA) 15.6619
Declination (DEC) 62.3456
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Gliese+49+&submit=SIMBAD+search
Open Exoplanet Database Link
Gliese 49 b
Gliese 49 b

  • Gliese 49 b is an exoplanet orbiting the star Gliese 49, located about 32.1 light-years ( 9.9 pc) away from Solar System. Its discovery was publicly announced on 2019.
  • The host star Gliese 49 has apparent magnitude of 9.6, with absolute magnitude of 9.6.
  • It is 0.5 times more massive and 0.5 times bigger compared with our Sun. The surface temperature is 3805 with its spectral types of M1.5V
  • In this planetary system, the extrasolar planet Gliese 49 b orbits around the star Gliese 49 every 13.9 days with its orbital distance of 0.09 AU ( 13538607.3 km)
  • (Projected orbit of Gliese 49 b around its host star Gliese 49)


  • The Star Gliese 49 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.160 AU ( 23976640.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.222 AU ( 33141983.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.338 AU ( 50501048.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.497 AU ( 74314504.7 km)
  • Radiation at Planetary Boundary of Gliese 49 b : 8195.36 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Gliese 49)



  • Kopparapu Recent Venus for Star Gliese 49 distance : 0.180 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Gliese 49 distance : 0.228 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Gliese 49 distance : 0.220 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Gliese 49 distance : 0.242 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Gliese 49 distance : 0.437 AU
  • Kopparapu Outer Boundary for Early Mars for Star Gliese 49 distance : 0.461 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Gliese 49)



  • Original Kopparapu Recent Venus for Star Gliese 49 distance : 0.178 AU
  • Original Kopparapu Runaway Greenhouse for Star Gliese 49 distance : 0.236 AU
  • Original Kopparapu Moist Greenhouse for Star Gliese 49 distance : 0.236 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Gliese 49 distance : 0.444 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Gliese 49 distance : 0.462 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Gliese 49)



    (Position in Stellar Map of star Gliese 49 and its Exoplanet Gliese 49 b)



    (Zoomed position in Stellar Map of star Gliese 49 and its Exoplanet Gliese 49 b (zoom level 3))

    (Synthetic Spectrum of star Gliese 49*)
    *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