Imaginary Picture of Kepler-1533 b

Display orbital revolution of Kepler-1533 b around the hoststar Kepler-1533
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Exoplanet Name : Kepler-1533 b
Alternate Name : "2MASS J19435413+4442484 b, K03946.01, KIC 8636434 b, KOI-3946 b, KOI-3946.01, WISE J194354.13+444248.2 b"
Status : Confirmed
Radius (Rjup / Re): 0.3090 (Rjup) 3.4636 (Rearth)
Mass (Mjup / Me): 0.0263 (Mjup) 8.3767 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.9778 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.8447
Orbital Period(Observed/Estimated) 308.55 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.6983
Star Radiation at Atmospheric Boundary: 6331.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 398.1 (K)
Blackbody T 0.3(K) 373.9 (K)
Blackbody T 0.7(K) 302.5 (K)
Tidally Locked Blackbody T 0.1(K) 473.5 (K)
Tidally Locked Blackbody T 0.3(K) 444.6 (K)
Size Class: Neptune-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 : Kepler-1533
Alternate Name : "2MASS J19435413+4442484, KIC 8636434, KOI-3946, WISE J194354.13+444248.2"
Star Distance(LY) : 3152.2
Stellar Radius(Rsun) : 1.8 (Rsun Measured)
Stellar Mass(Msun) : 1.3 (Msun Measured) 1.3 (Msun Estimated)
Star Age : 2.2 (GY)
Temperature : 6320 (K)
Spectral type : F7
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.0
Absolute Magnitude: 2.3
Apparent Magnitude: 12.2
Right Ascension(RA) 295.9756
Declination (DEC) 44.7134
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Timothy D. Morton, Stephen T. Bryson, Jeffrey L. Coughlin, Jason F. Rowe, Ganesh Ravichandran, Erik A. Petigura, Michael R. Haas, and Natalie M. Batalha2"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 428 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-1533+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1533%20b/
Kepler-1533 b
Kepler-1533 b

  • Kepler-1533 b is an exoplanet orbiting the star Kepler-1533, located about 3152.2 light-years (966.5 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1533 has apparent magnitude of 12.2, with absolute magnitude of 2.3.
  • It is 1.3 times more massive and 1.8 times bigger compared with our Sun. The surface temperature is 6320 with its spectral types of F7
  • In this planetary system, the extrasolar planet Kepler-1533 b orbits around the star Kepler-1533 every 308.5 days with its orbital distance of 0.98 AU ( 146274966.3 km)
  • (Projected orbit of Kepler-1533 b around its host star Kepler-1533)


  • The Star Kepler-1533 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.522 AU ( 227697419.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.104 AU ( 314737338.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.206 AU ( 479590051.9 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.718 AU ( 705737770.8 km)
  • Radiation at Planetary Boundary of Kepler-1533 b : 6331.63 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1533)



  • Kopparapu Recent Venus for Star Kepler-1533 distance : 1.527 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1533 distance : 1.933 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1533 distance : 1.867 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1533 distance : 2.046 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1533 distance : 3.373 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1533 distance : 3.558 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1533)



  • Original Kopparapu Recent Venus for Star Kepler-1533 distance : 1.546 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1533 distance : 1.983 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1533 distance : 2.046 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1533 distance : 3.434 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1533 distance : 3.571 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1533)



    (Position in Stellar Map of star Kepler-1533 and its Exoplanet Kepler-1533 b)



    (Zoomed position in Stellar Map of star Kepler-1533 and its Exoplanet Kepler-1533 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1533*)
    *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