Imaginary Picture of WASP-28 b

Display orbital revolution of WASP-28 b around the hoststar WASP-28
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Exoplanet Name : WASP-28 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.2130 (Rjup) 13.5965 (Rearth)
Mass (Mjup / Me): 0.9070 (Mjup) 288.3698 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0447 (AU) 0.0447 (AU Est.)
Eccentricity : 0.0460
Orbital Period(Yrs) 0.0093
Orbital Period(Observed/Estimated) 3.41 (Days Obs.) 3.42 (Days Est.)
Surface Gravity (G Earth) 1.5599
Star Radiation at Atmospheric Boundary: 1051282.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1429.1 (K)
Blackbody T 0.3(K) 1342.1 (K)
Blackbody T 0.7(K) 1085.9 (K)
Tidally Locked Blackbody T 0.1(K) 1699.5 (K)
Tidally Locked Blackbody T 0.3(K) 1596.0 (K)
Size Class: 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 : WASP-28
Alternate Name :
Star Distance(LY) : 1337.2
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 5.0 (GY)
Temperature : 6150 (K)
Spectral type : F8-G0
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : -0.3
Absolute Magnitude: 3.9
Apparent Magnitude: 12.0
Right Ascension(RA) 353.6162
Declination (DEC) -1.5800
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors CUTRI R.M.; SKRUTSKIE M.F.; VAN DYK S.; BEICHMAN C.A.; CARPENTER J.M.; CHESTER T.; CAMBRESY L.; EVANS T.; FOWLER J.; GIZIS J.; HOWARD E.; HUCHRA J.; JARRETT T.; KOPAN E.L.; KIRKPATRICK J.D.; LIGHT R.M.; MARSH K.A.; McCALLON H.; SCHNEIDER S.; STIENING R.;
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-28+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/WASP-28%20b/
WASP-28 b
WASP-28 b

  • WASP-28 b is an exoplanet orbiting the star WASP-28, located about 1337.2 light-years (410.0 pc) away from Solar System. Its discovery was publicly announced on 2010.
  • The host star WASP-28 has apparent magnitude of 12.0, with absolute magnitude of 3.9.
  • It is 1.0 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 6150 with its spectral types of F8-G0
  • In this planetary system, the extrasolar planet WASP-28 b orbits around the star WASP-28 every 3.4 days with its orbital distance of 0.04 AU ( 6685528.8 km)
  • (Projected orbit of WASP-28 b around its host star WASP-28)


  • The Star WASP-28 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.896 AU ( 134099039.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.239 AU ( 185359916.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.888 AU ( 282447492.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.778 AU ( 415633858.4 km)
  • Radiation at Planetary Boundary of WASP-28 b : 1051281.95 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star WASP-28)



  • Kopparapu Recent Venus for Star WASP-28 distance : 0.908 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star WASP-28 distance : 1.150 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star WASP-28 distance : 1.111 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star WASP-28 distance : 1.218 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-28 distance : 2.014 AU
  • Kopparapu Outer Boundary for Early Mars for Star WASP-28 distance : 2.124 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star WASP-28)



  • Original Kopparapu Recent Venus for Star WASP-28 distance : 0.917 AU
  • Original Kopparapu Runaway Greenhouse for Star WASP-28 distance : 1.181 AU
  • Original Kopparapu Moist Greenhouse for Star WASP-28 distance : 1.213 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-28 distance : 2.050 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star WASP-28 distance : 2.131 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star WASP-28)



    (Position in Stellar Map of star WASP-28 and its Exoplanet WASP-28 b)



    (Zoomed position in Stellar Map of star WASP-28 and its Exoplanet WASP-28 b (zoom level 3))

    (Synthetic Spectrum of star WASP-28*)
    *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