Imaginary Picture of HAT-P-1 b
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Exoplanet Name : HAT-P-1 b
Alternate Name :
Radius (Rjup / Re): 1.3190 (Rjup) 14.7847 (Rearth)
Mass (Mjup / Me): 0.5250 (Mjup) 166.9175 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0556 (AU) 0.0556 (AU Est.)
Eccentricity : 0.0670
Orbital Period(Yrs) 0.0122
Orbital Period(Observed/Estimated) 4.47 (Days Obs.) 4.46 (Days Est.)
Star Radiation at Atmospheric Boundary: 698940.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1290.5 (K)
Blackbody T 0.3(K) 1211.9 (K)
Blackbody T 0.7(K) 980.6 (K)
Tidally Locked Blackbody T 0.1(K) 1534.7 (K)
Tidally Locked Blackbody T 0.3(K) 1441.2 (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-1
Alternate Name :
Star Distance(LY) : 453.4
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 3.6 (GY)
Temperature : 5980 (K)
Spectral type : GOV
Metalicity : 0.1
Absolute Magnitude: 4.7
Apparent Magnitude: 10.4
Right Ascension(RA) 344.4452
Declination (DEC) 38.6750
Hubble Space Telescope Guide Star Catalog (GSC) ID 0
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.; SYKES M.; WEINBERG M.; WHEATON W.A.; WHEELOCK S.; ZACARIAS N.
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=HAT-P-1+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HAT-P-1%20b/
HAT-P-1 b
HAT-P-1 b

  • HAT-P-1 b is an exoplanet orbiting the star HAT-P-1, located about 453.4 light-years (139.0 pc) away from Solar System. Its discovery was publicly announced on 2006.
  • The host star HAT-P-1 has apparent magnitude of 10.4, with absolute magnitude of 4.7.
  • It is 1.2 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 5980 with its spectral types of GOV
  • In this planetary system, the extrasolar planet HAT-P-1 b orbits around the star HAT-P-1 every 4.5 days with its orbital distance of 0.06 AU ( 8319137.6 km)
  • (Projected orbit of HAT-P-1 b around its host star HAT-P-1)


  • The Star HAT-P-1 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.910 AU ( 136059408.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.257 AU ( 188069658.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.916 AU ( 286576540.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.819 AU ( 421709932.7 km)
  • Radiation at Planetary Boundary of HAT-P-1 b : 698940.09 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HAT-P-1)



  • Kopparapu Recent Venus for Star HAT-P-1 distance : 0.931 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HAT-P-1 distance : 1.179 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HAT-P-1 distance : 1.139 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HAT-P-1 distance : 1.248 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HAT-P-1 distance : 2.072 AU
  • Kopparapu Outer Boundary for Early Mars for Star HAT-P-1 distance : 2.185 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HAT-P-1)



  • Original Kopparapu Recent Venus for Star HAT-P-1 distance : 0.936 AU
  • Original Kopparapu Runaway Greenhouse for Star HAT-P-1 distance : 1.211 AU
  • Original Kopparapu Moist Greenhouse for Star HAT-P-1 distance : 1.239 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HAT-P-1 distance : 2.109 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HAT-P-1 distance : 2.193 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HAT-P-1)



    (Position in Stellar Map of star HAT-P-1 and its Exoplanet HAT-P-1 b)



    (Zoomed position in Stellar Map of star HAT-P-1 and its Exoplanet HAT-P-1 b (zoom level 3))