Imaginary Picture of HAT-P-13 c

Display orbital revolution of HAT-P-13 c around the hoststar HAT-P-13
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Exoplanet Name : HAT-P-13 c
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 14.2800 (Mjup) 4540.1546 (Mearth)
Semi Major Axis / Orbital Distance Calculated 1.1860 (AU) 1.1860 (AU Est.)
Eccentricity : 0.6616
Orbital Period(Yrs) 1.2218
Orbital Period(Observed/Estimated) 446.27 (Days Obs.) 427.11 (Days Est.)
Surface Gravity (G Earth) 43.8458
Star Radiation at Atmospheric Boundary: 2143.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 303.7 (K)
Blackbody T 0.3(K) 285.2 (K)
Blackbody T 0.7(K) 230.8 (K)
Tidally Locked Blackbody T 0.1(K) 361.2 (K)
Tidally Locked Blackbody T 0.3(K) 339.2 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Habitable
Habitability by Kopparapu: Not habitable
Star Name : HAT-P-13
Alternate Name :
Star Distance(LY) : 698.0
Stellar Radius(Rsun) : 1.6 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 5.0 (GY)
Temperature : 5638 (K)
Spectral type : G4
UV portion[%]: 7.4
Visible portion[%]: 44.1
IR portion[%]: 48.5
Metalicity : 0.4
Absolute Magnitude: 4.0
Apparent Magnitude: 10.6
Right Ascension(RA) 129.8826
Declination (DEC) 47.3519
Hubble Space Telescope Guide Star Catalog (GSC) ID 03416-00543
Discovered by
Discovery Paper - Authors HOG E.; FABRICIUS C.; MAKAROV V.V.; URBAN S.; CORBIN T.; WYCOFF G.; BASTIAN U.; SCHWEKENDIEK P.; WICENEC A
Discovery Paper - Title The Tycho-2 catalogue of the 2.5 million brightest stars.
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HAT-P-13+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HAT-P-13%20c/
HAT-P-13 c
HAT-P-13 c
  • HAT-P-13 c is an exoplanet orbiting the star HAT-P-13, located about 698.0 light-years (214.0 pc) away from Solar System. Its discovery was publicly announced on 2009.
  • The host star HAT-P-13 has apparent magnitude of 10.6, with absolute magnitude of 4.0.
  • It is 1.2 times more massive and 1.6 times bigger compared with our Sun. The surface temperature is 5638 with its spectral types of G4
  • In this planetary system, the extrasolar planet HAT-P-13 c orbits around the star HAT-P-13 every 446.3 days with its orbital distance of 1.19 AU ( 177423074.7 km)
    • (Projected orbit of HAT-P-13 c around its host star HAT-P-13)


  • The Star HAT-P-13 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.074 AU ( 160706282.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.485 AU ( 222138079.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.263 AU ( 338489274.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.330 AU ( 498101794.9 km)
  • Radiation at Planetary Boundary of HAT-P-13 c : 2143.80 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HAT-P-13)



  • Kopparapu Recent Venus for Star HAT-P-13 distance : 1.123 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HAT-P-13 distance : 1.422 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HAT-P-13 distance : 1.373 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HAT-P-13 distance : 1.506 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HAT-P-13 distance : 2.520 AU
  • Kopparapu Outer Boundary for Early Mars for Star HAT-P-13 distance : 2.658 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HAT-P-13)



  • Original Kopparapu Recent Venus for Star HAT-P-13 distance : 1.121 AU
  • Original Kopparapu Runaway Greenhouse for Star HAT-P-13 distance : 1.462 AU
  • Original Kopparapu Moist Greenhouse for Star HAT-P-13 distance : 1.484 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HAT-P-13 distance : 2.564 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HAT-P-13 distance : 2.667 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HAT-P-13)



    (Position in Stellar Map of star HAT-P-13 and its Exoplanet HAT-P-13 c)



    (Zoomed position in Stellar Map of star HAT-P-13 and its Exoplanet HAT-P-13 c (zoom level 3))

    (Synthetic Spectrum of star HAT-P-13*)
    *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