Imaginary Picture of WTS-1 b

Display orbital revolution of WTS-1 b around the hoststar WTS-1
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Exoplanet Name : WTS-1 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.4900 (Rjup) 16.7014 (Rearth)
Mass (Mjup / Me): 4.0100 (Mjup) 1274.9314 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0470 (AU) 0.0470 (AU Est.)
Eccentricity : 0.1000
Orbital Period(Yrs) 0.0092
Orbital Period(Observed/Estimated) 3.35 (Days Obs.) 3.40 (Days Est.)
Surface Gravity (G Earth) 4.5707
Star Radiation at Atmospheric Boundary: 1120275.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1452.0 (K)
Blackbody T 0.3(K) 1363.6 (K)
Blackbody T 0.7(K) 1103.3 (K)
Tidally Locked Blackbody T 0.1(K) 1726.8 (K)
Tidally Locked Blackbody T 0.3(K) 1621.6 (K)
Size Class: Super-Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : WTS-1
Alternate Name :
Star Distance(LY) : 10437.0
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 2.5 (GY)
Temperature : 6250 (K)
Spectral type : F8
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : -0.2
Absolute Magnitude: 3.8
Apparent Magnitude: 16.3
Right Ascension(RA) 293.9851
Declination (DEC) 36.2903
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "M. Cappetta, R. P. Saglia, J. L. Birkby, J. Koppenhoefer, D. J. Pinfield, S. T. Hodgkin, P. Cruz, G. Kov_cs, B. Sip_cz, D. Barrado, B. Nefs, Y. V. Pavlenko, L. Fossati, C. del Burgo, E. L. Mart_n, I. Snellen, J. Barnes, A. M. Bayo, D. A. Campbell, S. Catalan, M. C. G_lvez-Ortiz, N. Goulding, C. Haswell, O. Ivanyuk, H. Jones, M. Kuznetsov, N. Lodieu, F. Marocco, D. Mislis, F. Murgas, R. Napiwotzki, E. Palle, D. Pollacco, L. Sarro Baro, E. Solano, P. Steele, H. Stoev, R. Tata, J. Zendejas"
Discovery Paper - Title The first planet detected in the WTS: an inflated hot-Jupiter in a 3.35 day orbit around a late F-star
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=WTS-1+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/WTS-1%20b/
WTS-1 b
WTS-1 b
  • WTS-1 b is an exoplanet orbiting the star WTS-1, located about 10437.0 light-years (3200.0 pc) away from Solar System. Its discovery was publicly announced on 2012.
  • The host star WTS-1 has apparent magnitude of 16.3, with absolute magnitude of 3.8.
  • It is 1.2 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 6250 with its spectral types of F8
  • In this planetary system, the extrasolar planet WTS-1 b orbits around the star WTS-1 every 3.4 days with its orbital distance of 0.05 AU ( 7031099.9 km)
    • (Projected orbit of WTS-1 b around its host star WTS-1)


  • The Star WTS-1 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.973 AU ( 145584784.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.345 AU ( 201236217.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.050 AU ( 306639462.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.016 AU ( 451233402.1 km)
  • Radiation at Planetary Boundary of WTS-1 b : 1120275.52 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star WTS-1)



  • Kopparapu Recent Venus for Star WTS-1 distance : 0.980 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star WTS-1 distance : 1.241 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star WTS-1 distance : 1.199 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star WTS-1 distance : 1.314 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star WTS-1 distance : 2.169 AU
  • Kopparapu Outer Boundary for Early Mars for Star WTS-1 distance : 2.287 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star WTS-1)



  • Original Kopparapu Recent Venus for Star WTS-1 distance : 0.991 AU
  • Original Kopparapu Runaway Greenhouse for Star WTS-1 distance : 1.273 AU
  • Original Kopparapu Moist Greenhouse for Star WTS-1 distance : 1.312 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star WTS-1 distance : 2.208 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star WTS-1 distance : 2.296 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star WTS-1)



    (Position in Stellar Map of star WTS-1 and its Exoplanet WTS-1 b)



    (Zoomed position in Stellar Map of star WTS-1 and its Exoplanet WTS-1 b (zoom level 3))

    (Synthetic Spectrum of star WTS-1*)
    *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