Imaginary Picture of TrES-1 b

Display orbital revolution of TrES-1 b around the hoststar TrES-1
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Exoplanet Name : TrES-1 b
Alternate Name : TrES-1
Status : Confirmed
Radius (Rjup / Re): 1.0990 (Rjup) 12.3187 (Rearth)
Mass (Mjup / Me): 0.7610 (Mjup) 241.9508 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0393 (AU) 0.0393 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0083
Orbital Period(Observed/Estimated) 3.03 (Days Obs.) 3.03 (Days Est.)
Surface Gravity (G Earth) 1.5944
Star Radiation at Atmospheric Boundary: 432496.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1144.6 (K)
Blackbody T 0.3(K) 1074.9 (K)
Blackbody T 0.7(K) 869.7 (K)
Tidally Locked Blackbody T 0.1(K) 1361.1 (K)
Tidally Locked Blackbody T 0.3(K) 1278.2 (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 : TrES-1
Alternate Name :
Star Distance(LY) : 512.1
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 2.5 (GY)
Temperature : 5240 (K)
Spectral type : K0V
UV portion[%]: 5.3
Visible portion[%]: 40.7
IR portion[%]: 54.0
Metalicity : 0.0
Absolute Magnitude: 5.8
Apparent Magnitude: 11.8
Right Ascension(RA) 286.0410
Declination (DEC) 36.6325
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=TrES-1+&submit=SIMBAD+search
Open Exoplanet Database Link
TrES-1 b
TrES-1 b

  • TrES-1 b is an exoplanet orbiting the star TrES-1, located about 512.1 light-years (157.0 pc) away from Solar System. Its discovery was publicly announced on 2004.
  • The host star TrES-1 has apparent magnitude of 11.8, with absolute magnitude of 5.8.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5240 with its spectral types of K0V
  • In this planetary system, the extrasolar planet TrES-1 b orbits around the star TrES-1 every 3.0 days with its orbital distance of 0.04 AU ( 5879196.3 km)
  • (Projected orbit of TrES-1 b around its host star TrES-1)


  • The Star TrES-1 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.506 AU ( 75637926.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.699 AU ( 104551380.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.065 AU ( 159313166.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.567 AU ( 234436303.5 km)
  • Radiation at Planetary Boundary of TrES-1 b : 432496.61 W/m2

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



  • Kopparapu Recent Venus for Star TrES-1 distance : 0.540 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TrES-1 distance : 0.684 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TrES-1 distance : 0.661 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TrES-1 distance : 0.725 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TrES-1 distance : 1.229 AU
  • Kopparapu Outer Boundary for Early Mars for Star TrES-1 distance : 1.296 AU

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



  • Original Kopparapu Recent Venus for Star TrES-1 distance : 0.536 AU
  • Original Kopparapu Runaway Greenhouse for Star TrES-1 distance : 0.704 AU
  • Original Kopparapu Moist Greenhouse for Star TrES-1 distance : 0.709 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TrES-1 distance : 1.250 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TrES-1 distance : 1.300 AU

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



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



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

    (Synthetic Spectrum of star TrES-1*)
    *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