Imaginary Picture of Kepler-443 b

Display orbital revolution of Kepler-443 b around the hoststar Kepler-443
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Exoplanet Name : Kepler-443 b
Alternate Name : "2MASS J19142653+4958070 b, K04745.01, KIC 11757451 b, KOI-4745 b, KOI-4745.01, WISE J191426.51+495806.8 b"
Status : Confirmed
Radius (Rjup / Re): 0.2100 (Rjup) 2.3539 (Rearth)
Mass (Mjup / Me): 0.0184 (Mjup) 5.8489 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.4950 (AU) 0.4950 (AU Est.)
Eccentricity : 0.1100
Orbital Period(Yrs) 0.4864
Orbital Period(Observed/Estimated) 177.67 (Days Obs.) 147.87 (Days Est.)
Surface Gravity (G Earth) 1.0556
Star Radiation at Atmospheric Boundary: 1314.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 268.7 (K)
Blackbody T 0.3(K) 252.4 (K)
Blackbody T 0.7(K) 204.2 (K)
Tidally Locked Blackbody T 0.1(K) 319.6 (K)
Tidally Locked Blackbody T 0.3(K) 300.1 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-443
Alternate Name : "2MASS J19142653+4958070, KIC 11757451, KOI-4745, WISE J191426.51+495806.8"
Star Distance(LY) : 2619.3
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.7 (Msun Measured) 0.5 (Msun Estimated)
Star Age : 3.2 (GY)
Temperature : 4781 (K)
Spectral type : K3
UV portion[%]: 2.2
Visible portion[%]: 34.5
IR portion[%]: 63.2
Metalicity : -0.0
Absolute Magnitude: 6.7
Apparent Magnitude: 16.2
Right Ascension(RA) 288.6105
Declination (DEC) 49.9686
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Guillermo Torres, David M. Kipping, Francois Fressin, Douglas A. Caldwell, Joseph D. Twicken, Sarah Ballard, Natalie M. Batalha, Stephen T. Bryson, David R. Ciardi, Christopher E. Henze, Steve B. Howell, Howard T. Isaacson, Jon M. Jenkins, Philip S. Muirhead, Elisabeth R. Newton, Erik A. Petigura, Thomas Barclay, William J. Borucki, Justin R. Crepp, Mark E. Everett, Elliott P. Horch, Andrew W. Howard, Rea Kolbl, Geoffrey W. Marcy, Sean McCauliff, Elisa V. Quintana"
Discovery Paper - Title Validation of Twelve Small Kepler Transiting Planets in the Habitable Zone
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-443+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-443%20b/
Kepler-443 b
Kepler-443 b

  • Kepler-443 b is an exoplanet orbiting the star Kepler-443, located about 2619.3 light-years (803.1 pc) away from Solar System. Its discovery was publicly announced on 2015.
  • The host star Kepler-443 has apparent magnitude of 16.2, with absolute magnitude of 6.7.
  • It is 0.7 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4781 with its spectral types of K3
  • In this planetary system, the extrasolar planet Kepler-443 b orbits around the star Kepler-443 every 177.7 days with its orbital distance of 0.49 AU ( 74050946.0 km)
  • (Projected orbit of Kepler-443 b around its host star Kepler-443)


  • The Star Kepler-443 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.351 AU ( 52522070.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.485 AU ( 72599226.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.739 AU ( 110625155.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.088 AU ( 162789761.9 km)
  • Radiation at Planetary Boundary of Kepler-443 b : 1314.50 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-443)



  • Kopparapu Recent Venus for Star Kepler-443 distance : 0.384 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-443 distance : 0.486 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-443 distance : 0.469 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-443 distance : 0.515 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-443 distance : 0.888 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-443 distance : 0.937 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-443)



  • Original Kopparapu Recent Venus for Star Kepler-443 distance : 0.379 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-443 distance : 0.501 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-443 distance : 0.501 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-443 distance : 0.903 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-443 distance : 0.939 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-443)



    (Position in Stellar Map of star Kepler-443 and its Exoplanet Kepler-443 b)



    (Zoomed position in Stellar Map of star Kepler-443 and its Exoplanet Kepler-443 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-443*)
    *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