Imaginary Picture of WASP-55 b

Display orbital revolution of WASP-55 b around the hoststar WASP-55
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Exoplanet Name : WASP-55 b
Alternate Name : "1SWASP J133501.94-173012.7 b, 2MASS J13350194-1730124 b, EPIC 212300977.01, TYC 6125-00113-1 b, WASP-55 A b, WISE J1335
Radius (Rjup / Re): 1.3300 (Rjup) 14.9080 (Rearth)
Mass (Mjup / Me): 0.6100 (Mjup) 193.9422 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0533 (AU) 0.0533 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0122
Orbital Period(Observed/Estimated) 4.47 (Days Obs.) 4.27 (Days Est.)
Surface Gravity (G Earth) 0.8726
Star Radiation at Atmospheric Boundary: 621457.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1253.1 (K)
Blackbody T 0.3(K) 1176.8 (K)
Blackbody T 0.7(K) 952.2 (K)
Tidally Locked Blackbody T 0.1(K) 1490.2 (K)
Tidally Locked Blackbody T 0.3(K) 1399.5 (K)
Size Class: Super-Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Radial Velocity
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : WASP-55
Alternate Name : "1SWASP J133501.94-173012.7, 2MASS J13350194-1730124, EPIC 212300977, TYC 6125-00113-1, WASP-55 A, WISE J133501.96-17301
Star Distance(LY) : 929.2
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 3.0 (GY)
Temperature : 5900 (K)
Spectral type : G1
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : -0.2
Absolute Magnitude: 4.5
Apparent Magnitude: 11.8
Right Ascension(RA) 203.7581
Declination (DEC) -17.5035
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title 2MASS All Sky Catalog of point sources.
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=WASP-55+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/WASP-55%20b/
WASP-55 b
WASP-55 b

  • WASP-55 b is an exoplanet orbiting the star WASP-55, located about 929.2 light-years (284.9 pc) away from Solar System. Its discovery was publicly announced on 2012.
  • The host star WASP-55 has apparent magnitude of 11.8, with absolute magnitude of 4.5.
  • It is 1.1 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5900 with its spectral types of G1
  • In this planetary system, the extrasolar planet WASP-55 b orbits around the star WASP-55 every 4.5 days with its orbital distance of 0.05 AU ( 7973566.5 km)
  • (Projected orbit of WASP-55 b around its host star WASP-55)


  • The Star WASP-55 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.822 AU ( 122967015.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.136 AU ( 169972551.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.731 AU ( 259000552.9 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.548 AU ( 381130659.7 km)
  • Radiation at Planetary Boundary of WASP-55 b : 621457.50 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star WASP-55)



  • Kopparapu Recent Venus for Star WASP-55 distance : 0.846 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star WASP-55 distance : 1.071 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star WASP-55 distance : 1.034 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star WASP-55 distance : 1.134 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-55 distance : 1.885 AU
  • Kopparapu Outer Boundary for Early Mars for Star WASP-55 distance : 1.988 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star WASP-55)



  • Original Kopparapu Recent Venus for Star WASP-55 distance : 0.849 AU
  • Original Kopparapu Runaway Greenhouse for Star WASP-55 distance : 1.100 AU
  • Original Kopparapu Moist Greenhouse for Star WASP-55 distance : 1.123 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-55 distance : 1.919 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star WASP-55 distance : 1.995 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star WASP-55)



    (Position in Stellar Map of star WASP-55 and its Exoplanet WASP-55 b)



    (Zoomed position in Stellar Map of star WASP-55 and its Exoplanet WASP-55 b (zoom level 3))

    (Synthetic Spectrum of star WASP-55*)
    *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