Imaginary Picture of DW Lyn b

Display orbital revolution of DW Lyn b around the hoststar DW Lyn
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Exoplanet Name : DW Lyn b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 5.5800 (Mjup) 1774.0940 (Mearth)
Semi Major Axis / Orbital Distance Calculated 1.1480 (AU) 1.1480 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 3.9698
Orbital Period(Observed/Estimated) 1450.00 (Days Obs.) 438.44 (Days Est.)
Surface Gravity (G Earth) 17.1330
Star Radiation at Atmospheric Boundary: 0.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 30.1 (K)
Blackbody T 0.3(K) 28.3 (K)
Blackbody T 0.7(K) 22.9 (K)
Tidally Locked Blackbody T 0.1(K) 35.8 (K)
Tidally Locked Blackbody T 0.3(K) 33.6 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Timing
Mass Detection : Timing
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : DW Lyn
Alternate Name :
Star Distance(LY) : 4877.5
Stellar Radius(Rsun) : 0.0 (Rsun Estimated)
Stellar Mass(Msun) : 1.1 (Msun Measured) 0.1 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 20000 (K)
Spectral type : SdB D
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.0
Absolute Magnitude: 4.6
Apparent Magnitude: 15.4
Right Ascension(RA) 106.7908
Declination (DEC) 60.6473
Hubble Space Telescope Guide Star Catalog (GSC) ID 04110-00316
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=DW+Lyn+&submit=SIMBAD+search
Open Exoplanet Database Link
DW Lyn b
DW Lyn b

  • DW Lyn b is an exoplanet orbiting the star DW Lyn, located about 4877.5 light-years (1495.4 pc) away from Solar System. Its discovery was publicly announced on 2013.
  • The host star DW Lyn has apparent magnitude of 15.4, with absolute magnitude of 4.6.
  • It is 1.1 times more massive compared with our Sun. The surface temperature is 20000 with its spectral types of SdB D
  • In this planetary system, the extrasolar planet DW Lyn b orbits around the star DW Lyn every 1450.0 days with its orbital distance of 1.15 AU ( 171738355.6 km)
  • (Projected orbit of DW Lyn b around its host star DW Lyn)


  • The Star DW Lyn 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.010 AU ( 1530129.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.014 AU ( 2115038.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.022 AU ( 3222851.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.032 AU ( 4742566.6 km)
  • Radiation at Planetary Boundary of DW Lyn b : 0.21 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star DW Lyn)



  • Kopparapu Recent Venus for Star DW Lyn distance : nan AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star DW Lyn distance : nan AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star DW Lyn distance : nan AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star DW Lyn distance : nan AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star DW Lyn distance : nan AU
  • Kopparapu Outer Boundary for Early Mars for Star DW Lyn distance : nan AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star DW Lyn)



  • Original Kopparapu Recent Venus for Star DW Lyn distance : nan AU
  • Original Kopparapu Runaway Greenhouse for Star DW Lyn distance : nan AU
  • Original Kopparapu Moist Greenhouse for Star DW Lyn distance : nan AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star DW Lyn distance : nan AU
  • Original Kopparapu Outer Boundary for Early Mars for Star DW Lyn distance : nan AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star DW Lyn)



    (Position in Stellar Map of star DW Lyn and its Exoplanet DW Lyn b)



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

    (Synthetic Spectrum of star DW Lyn*)
    *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