Imaginary Picture of HAT-P-45 b

Display orbital revolution of HAT-P-45 b around the hoststar HAT-P-45
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Exoplanet Name : HAT-P-45 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.4260 (Rjup) 15.9840 (Rearth)
Mass (Mjup / Me): 0.8920 (Mjup) 283.6007 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0452 (AU) 0.0452 (AU Est.)
Eccentricity : 0.0490
Orbital Period(Yrs) 0.0086
Orbital Period(Observed/Estimated) 3.13 (Days Obs.) 3.13 (Days Est.)
Surface Gravity (G Earth) 1.1100
Star Radiation at Atmospheric Boundary: 1676611.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1606.0 (K)
Blackbody T 0.3(K) 1508.2 (K)
Blackbody T 0.7(K) 1220.3 (K)
Tidally Locked Blackbody T 0.1(K) 1909.9 (K)
Tidally Locked Blackbody T 0.3(K) 1793.6 (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 : HAT-P-45
Alternate Name :
Star Distance(LY) : 994.8
Stellar Radius(Rsun) : 1.3 (Rsun Measured)
Stellar Mass(Msun) : 1.3 (Msun Measured) 1.3 (Msun Estimated)
Star Age : 2.0 (GY)
Temperature : 6330 (K)
Spectral type : F8
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.1
Absolute Magnitude: 5.4
Apparent Magnitude: 12.8
Right Ascension(RA) 274.3732
Declination (DEC) -3.3811
Hubble Space Telescope Guide Star Catalog (GSC) ID 05102-00262
Discovered by
Discovery Paper - Authors "J. D. Hartman, G. _. Bakos, G. Torres, G. Kov_cs, J. A. Johnson, A. W. Howard, G. W. Marcy, D. W. Latham, A. Bieryla, L. A. Buchhave, W. Bhatti, B. B_ky, Z. Csubry, K. Penev, M. de Val-Borro, R. W. Noyes, D. A. Fischer, G. A. Esquerdo, M. Everett, T. Szklen_r, G. Zhou, D. Bayliss, A. Shporer, B. J. Fulton, R. Sanchis-Ojeda, E. Falco, J. L_z_r, I. Papp, P. S_ri"
Discovery Paper - Title "HAT-P-44b, HAT-P-45b, and HAT-P-46b: Three Transiting Hot Jupiters in Possible Multi-Planet Systems"
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HAT-P-45+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HAT-P-45%20b/
HAT-P-45 b
HAT-P-45 b
  • HAT-P-45 b is an exoplanet orbiting the star HAT-P-45, located about 994.8 light-years (305.0 pc) away from Solar System. Its discovery was publicly announced on 2013.
  • The host star HAT-P-45 has apparent magnitude of 12.8, with absolute magnitude of 5.4.
  • It is 1.3 times more massive and 1.3 times bigger compared with our Sun. The surface temperature is 6330 with its spectral types of F8
  • In this planetary system, the extrasolar planet HAT-P-45 b orbits around the star HAT-P-45 every 3.1 days with its orbital distance of 0.05 AU ( 6761823.8 km)
    • (Projected orbit of HAT-P-45 b around its host star HAT-P-45)


  • The Star HAT-P-45 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.145 AU ( 171281448.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.583 AU ( 236755723.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.412 AU ( 360763328.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.549 AU ( 530879042.3 km)
  • Radiation at Planetary Boundary of HAT-P-45 b : 1676611.24 W/m2

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



  • Kopparapu Recent Venus for Star HAT-P-45 distance : 1.148 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HAT-P-45 distance : 1.453 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HAT-P-45 distance : 1.404 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HAT-P-45 distance : 1.538 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HAT-P-45 distance : 2.535 AU
  • Kopparapu Outer Boundary for Early Mars for Star HAT-P-45 distance : 2.674 AU

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



  • Original Kopparapu Recent Venus for Star HAT-P-45 distance : 1.163 AU
  • Original Kopparapu Runaway Greenhouse for Star HAT-P-45 distance : 1.491 AU
  • Original Kopparapu Moist Greenhouse for Star HAT-P-45 distance : 1.539 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HAT-P-45 distance : 2.581 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HAT-P-45 distance : 2.684 AU

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



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



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

    (Synthetic Spectrum of star HAT-P-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