Imaginary Picture of WD 0837+185 B

Display orbital revolution of WD 0837+185 B around the hoststar WD 0837+185
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Exoplanet Name : WD 0837+185 B
Alternate Name : "LB 5959 B, SDSS J084013.28+184326.3 B, SDSS J084013.29+184326.4 B"
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 30.0000 (Mjup) 9538.1400 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0060 (AU) 0.0060 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0005
Orbital Period(Observed/Estimated) 0.17 (Days Obs.) 0.19 (Days Est.)
Surface Gravity (G Earth) 92.1130
Star Radiation at Atmospheric Boundary: 89076.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 771.1 (K)
Blackbody T 0.3(K) 724.1 (K)
Blackbody T 0.7(K) 585.9 (K)
Tidally Locked Blackbody T 0.1(K) 916.9 (K)
Tidally Locked Blackbody T 0.3(K) 861.1 (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 : WD 0837+185
Alternate Name : "SDSS J084013.29+184326.4, SDSS J084013.28+184326.3, LB 5959"
Star Distance(LY) : 636.0
Stellar Radius(Rsun) : 0.0 (Rsun Estimated)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 15000 (K)
Spectral type : WD DA
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.0
Absolute Magnitude: 11.7
Apparent Magnitude: 18.1
Right Ascension(RA) 130.0554
Declination (DEC) 18.7240
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
WD 0837+185 B
WD 0837+185 B

  • WD 0837+185 B is an exoplanet orbiting the star WD 0837+185, located about 636.0 light-years (195.0 pc) away from Solar System. Its discovery was publicly announced on 2012.
  • The host star WD 0837+185 has apparent magnitude of 18.1, with absolute magnitude of 11.7.
  • It is 0.8 times more massive compared with our Sun. The surface temperature is 15000 with its spectral types of WD DA
  • In this planetary system, the extrasolar planet WD 0837+185 B orbits around the star WD 0837+185 every 0.2 days with its orbital distance of 0.01 AU ( 897587.2 km)
  • (Projected orbit of WD 0837+185 B around its host star WD 0837+185)


  • The Star WD 0837+185 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.035 AU ( 5240687.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.048 AU ( 7243999.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.074 AU ( 11038252.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.109 AU ( 16243272.4 km)
  • Radiation at Planetary Boundary of WD 0837+185 B : 89076.40 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star WD 0837+185)



  • Kopparapu Recent Venus for Star WD 0837+185 distance : nan AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star WD 0837+185 distance : nan AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star WD 0837+185 distance : nan AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star WD 0837+185 distance : nan AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star WD 0837+185 distance : nan AU
  • Kopparapu Outer Boundary for Early Mars for Star WD 0837+185 distance : nan AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star WD 0837+185)



  • Original Kopparapu Recent Venus for Star WD 0837+185 distance : nan AU
  • Original Kopparapu Runaway Greenhouse for Star WD 0837+185 distance : nan AU
  • Original Kopparapu Moist Greenhouse for Star WD 0837+185 distance : nan AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star WD 0837+185 distance : nan AU
  • Original Kopparapu Outer Boundary for Early Mars for Star WD 0837+185 distance : nan AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star WD 0837+185)



    (Position in Stellar Map of star WD 0837+185 and its Exoplanet WD 0837+185 B)



    (Zoomed position in Stellar Map of star WD 0837+185 and its Exoplanet WD 0837+185 B (zoom level 3))

    (Synthetic Spectrum of star WD 0837+185*)
    *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