Imaginary Picture of WASP-45 b

Display orbital revolution of WASP-45 b around the hoststar WASP-45
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Exoplanet Name : WASP-45 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.1600 (Rjup) 13.0024 (Rearth)
Mass (Mjup / Me): 1.0070 (Mjup) 320.1636 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0405 (AU) 0.0405 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0086
Orbital Period(Observed/Estimated) 3.13 (Days Obs.) 3.13 (Days Est.)
Surface Gravity (G Earth) 1.8937
Star Radiation at Atmospheric Boundary: 465107.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1165.6 (K)
Blackbody T 0.3(K) 1094.6 (K)
Blackbody T 0.7(K) 885.6 (K)
Tidally Locked Blackbody T 0.1(K) 1386.1 (K)
Tidally Locked Blackbody T 0.3(K) 1301.7 (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-45
Alternate Name :
Star Distance(LY) : 734.6
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 1.4 (GY)
Temperature : 5140 (K)
Spectral type : K2V
UV portion[%]: 4.3
Visible portion[%]: 39.2
IR portion[%]: 56.5
Metalicity : 0.4
Absolute Magnitude: 5.2
Apparent Magnitude: 12.0
Right Ascension(RA) 5.2375
Declination (DEC) -35.9983
Hubble Space Telescope Guide Star Catalog (GSC) ID 06996-00583
Discovered by
Discovery Paper - Authors "D. R. Anderson,. Collier Cameron,. Gillon,C. Hellier,. Jehin,. Lendl,. F. L. Maxted,. Queloz,. Smalley,. M. S. Smith,. H. M. J. Triaud,. G. West,. Pepe,. Pollacco,. S_gransan,. Todd,. Udry"
Discovery Paper - Title "WASP-44b, WASP-45b and WASP-46b: three short-period, transiting extrasolar planets"
Discovery Paper - Journal Mon Not R Astron Soc (2012) 422 (3): 1988-1998. DOI: https://doi.org/10.1111/j.1365-2966.2012.20635.x
Discovery Paper - URL https://academic.oup.com/mnras/article/422/3/1988/1041345/WASP-44b-WASP-45b-and-WASP-46b-three-short-period
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=WASP-45+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/WASP-45%20b/
WASP-45 b
WASP-45 b

  • WASP-45 b is an exoplanet orbiting the star WASP-45, located about 734.6 light-years (225.2 pc) away from Solar System. Its discovery was publicly announced on 2011.
  • The host star WASP-45 has apparent magnitude of 12.0, with absolute magnitude of 5.2.
  • It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5140 with its spectral types of K2V
  • In this planetary system, the extrasolar planet WASP-45 b orbits around the star WASP-45 every 3.1 days with its orbital distance of 0.04 AU ( 6064697.7 km)
  • (Projected orbit of WASP-45 b around its host star WASP-45)


  • The Star WASP-45 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.541 AU ( 80912600.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.748 AU ( 111842358.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.139 AU ( 170423004.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.676 AU ( 250784916.3 km)
  • Radiation at Planetary Boundary of WASP-45 b : 465107.58 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star WASP-45)



  • Kopparapu Recent Venus for Star WASP-45 distance : 0.581 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star WASP-45 distance : 0.736 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star WASP-45 distance : 0.711 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star WASP-45 distance : 0.780 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-45 distance : 1.326 AU
  • Kopparapu Outer Boundary for Early Mars for Star WASP-45 distance : 1.399 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star WASP-45)



  • Original Kopparapu Recent Venus for Star WASP-45 distance : 0.576 AU
  • Original Kopparapu Runaway Greenhouse for Star WASP-45 distance : 0.758 AU
  • Original Kopparapu Moist Greenhouse for Star WASP-45 distance : 0.762 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star WASP-45 distance : 1.349 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star WASP-45 distance : 1.403 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star WASP-45)



    (Position in Stellar Map of star WASP-45 and its Exoplanet WASP-45 b)



    (Zoomed position in Stellar Map of star WASP-45 and its Exoplanet WASP-45 b (zoom level 3))

    (Synthetic Spectrum of star WASP-45*)
    *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