Imaginary Picture of DP Leo (AB) b

Display orbital revolution of DP Leo (AB) b around the hoststar DP Leo (AB)
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Exoplanet Name : DP Leo (AB) b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 6.0500 (Mjup) 1923.5249 (Mearth)
Semi Major Axis / Orbital Distance Calculated 8.1900 (AU) 8.1900 (AU Est.)
Eccentricity : 0.3900
Orbital Period(Yrs) 28.0074
Orbital Period(Observed/Estimated) 10230.00 (Days Obs.) 10306.03 (Days Est.)
Surface Gravity (G Earth) 18.5761
Star Radiation at Atmospheric Boundary: 1.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 44.6 (K)
Blackbody T 0.3(K) 41.9 (K)
Blackbody T 0.7(K) 33.9 (K)
Tidally Locked Blackbody T 0.1(K) 53.1 (K)
Tidally Locked Blackbody T 0.3(K) 49.8 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Pulsar
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : DP Leo (AB)
Alternate Name :
Star Distance(LY) : 0.0
Stellar Radius(Rsun) : 0.6 (Rsun Estimated)
Stellar Mass(Msun) : 0.7 (Msun Measured) 0.7 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3500 (K)
Spectral type : AM Her
UV portion[%]: 0.3
Visible portion[%]: 14.5
IR portion[%]: 85.2
Metalicity : 0.0
Absolute Magnitude: 25.0
Apparent Magnitude: 17.5
Right Ascension(RA) 169.3167
Declination (DEC) 17.9614
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "K. Beuermann, J. Buhlmann, J. Diese, S. Dreizler, F. V. Hessman, T.-O. Husser, G. F. Miller, N. Nickol , R. Pons, D. Ruhr, H. Schm_lling, A. D. Schwope , T. Sorge , L. Ulrichs, D. E. Winget , and K. I. Winget"
Discovery Paper - Title The giant planet orbiting the cataclysmic binary DP Leonis
Discovery Paper - Journal "A&A Volume 526, February 2011 Article Number A53 Number of page(s) 5 DOI https://doi.org/10.1051/0004-6361/201015942 "
Discovery Paper - URL http://www.aanda.org/articles/aa/full_html/2011/02/aa15942-10/aa15942-10.html
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=DP+Leo+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/DP%20Leo%20b/
DP Leo (AB) b
DP Leo (AB) b

  • DP Leo (AB) b is an exoplanet orbiting the star DP Leo (AB). Its discovery was publicly announced on 2009.
  • The host star DP Leo (AB) has apparent magnitude of 17.5, with absolute magnitude of 25.0.
  • It is 0.7 times more massive and 0.6 times bigger compared with our Sun. The surface temperature is 3500 with its spectral types of AM Her
  • In this planetary system, the extrasolar planet DP Leo (AB) b orbits around the star DP Leo (AB) every 10230.0 days with its orbital distance of 8.19 AU ( 1225206561.0 km)
  • (Projected orbit of DP Leo (AB) b around its host star DP Leo (AB))


  • The Star DP Leo (AB) 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.160 AU ( 23957083.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.221 AU ( 33114949.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.337 AU ( 50459855.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.496 AU ( 74253887.6 km)
  • Radiation at Planetary Boundary of DP Leo (AB) b : 1.00 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star DP Leo (AB))



  • Kopparapu Recent Venus for Star DP Leo (AB) distance : 0.181 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star DP Leo (AB) distance : 0.229 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star DP Leo (AB) distance : 0.221 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star DP Leo (AB) distance : 0.243 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star DP Leo (AB) distance : 0.446 AU
  • Kopparapu Outer Boundary for Early Mars for Star DP Leo (AB) distance : 0.470 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star DP Leo (AB))



  • Original Kopparapu Recent Venus for Star DP Leo (AB) distance : 0.179 AU
  • Original Kopparapu Runaway Greenhouse for Star DP Leo (AB) distance : 0.237 AU
  • Original Kopparapu Moist Greenhouse for Star DP Leo (AB) distance : 0.237 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star DP Leo (AB) distance : 0.453 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star DP Leo (AB) distance : 0.471 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star DP Leo (AB))



    (Position in Stellar Map of star DP Leo (AB) and its Exoplanet DP Leo (AB) b)



    (Zoomed position in Stellar Map of star DP Leo (AB) and its Exoplanet DP Leo (AB) b (zoom level 3))

    (Synthetic Spectrum of star DP Leo (AB)*)
    *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