Imaginary Picture of DE0823-49 b

Display orbital revolution of DE0823-49 b around the hoststar DE0823-49
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Exoplanet Name : DE0823-49 b
Alternate Name :
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 31.5000 (Mjup) 10015.0470 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.3600 (AU) 0.3600 (AU Est.)
Eccentricity : 0.3600
Orbital Period(Yrs) 0.6783
Orbital Period(Observed/Estimated) 247.75 (Days Obs.) 371.91 (Days Est.)
Surface Gravity (G Earth) 96.7186
Star Radiation at Atmospheric Boundary: 0.4 (W/m2)
Measured Temperature (K) 1670.0 (K)
Blackbody T 0.1(K) 35.7 (K)
Blackbody T 0.3(K) 33.5 (K)
Blackbody T 0.7(K) 27.1 (K)
Tidally Locked Blackbody T 0.1(K) 42.5 (K)
Tidally Locked Blackbody T 0.3(K) 39.9 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Imaging
Mass Detection : Astrometry
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : DE0823-49
Alternate Name :
Star Distance(LY) : 67.5
Stellar Radius(Rsun) : 0.0 (Rsun Estimated)
Stellar Mass(Msun) : 0.0 (Msun Measured) 0.1 (Msun Estimated)
Star Age : 0.1 (GY)
Temperature : 2150 (K)
Spectral type : M9
UV portion[%]: 0.1
Visible portion[%]: 4.9
IR portion[%]: 95.0
Metalicity : 0.0
Absolute Magnitude: 20.4
Apparent Magnitude: 22.0
Right Ascension(RA) 125.7625
Declination (DEC) -48.7997
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title 0
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK
Open Exoplanet Database Link 0
DE0823-49 b
DE0823-49 b

  • DE0823-49 b is an exoplanet orbiting the star DE0823-49, located about 67.5 light-years (20.7 pc) away from Solar System. Its discovery was publicly announced on 2013.
  • The host star DE0823-49 has apparent magnitude of 22.0, with absolute magnitude of 20.4.
  • It is 0.0 times more massive and 0.0 times bigger compared with our Sun. The surface temperature is 2150 with its spectral types of M9
  • In this planetary system, the extrasolar planet DE0823-49 b orbits around the star DE0823-49 every 247.8 days with its orbital distance of 0.36 AU ( 53855233.5 km)
  • (Projected orbit of DE0823-49 b around its host star DE0823-49)


  • The Star DE0823-49 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.005 AU ( 674136.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.006 AU ( 931832.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.009 AU ( 1419906.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.014 AU ( 2089453.9 km)
  • Radiation at Planetary Boundary of DE0823-49 b : 0.41 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star DE0823-49)



  • Kopparapu Recent Venus for Star DE0823-49 distance : 0.005 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star DE0823-49 distance : 0.007 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star DE0823-49 distance : 0.006 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star DE0823-49 distance : 0.007 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star DE0823-49 distance : 0.014 AU
  • Kopparapu Outer Boundary for Early Mars for Star DE0823-49 distance : 0.014 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star DE0823-49)



  • Original Kopparapu Recent Venus for Star DE0823-49 distance : 0.005 AU
  • Original Kopparapu Runaway Greenhouse for Star DE0823-49 distance : 0.007 AU
  • Original Kopparapu Moist Greenhouse for Star DE0823-49 distance : 0.007 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star DE0823-49 distance : 0.014 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star DE0823-49 distance : 0.014 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star DE0823-49)



    (Position in Stellar Map of star DE0823-49 and its Exoplanet DE0823-49 b)



    (Zoomed position in Stellar Map of star DE0823-49 and its Exoplanet DE0823-49 b (zoom level 3))

    (Synthetic Spectrum of star DE0823-49*)
    *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