Imaginary Picture of Kepler-489 b

Display orbital revolution of Kepler-489 b around the hoststar Kepler-489
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Exoplanet Name : Kepler-489 b
Alternate Name : "2MASS J19231995+3811036 b, K00197.01, KIC 2987027 b, KOI-197 b, KOI-197.01, WISE J192319.97+381103.2 b"
Status : Confirmed
Radius (Rjup / Re): 0.6890 (Rjup) 7.7230 (Rearth)
Mass (Mjup / Me): 0.3206 (Mjup) 101.9363 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.1224 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0473
Orbital Period(Observed/Estimated) 17.28 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.7091
Star Radiation at Atmospheric Boundary: 27441.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 574.4 (K)
Blackbody T 0.3(K) 539.5 (K)
Blackbody T 0.7(K) 436.5 (K)
Tidally Locked Blackbody T 0.1(K) 683.1 (K)
Tidally Locked Blackbody T 0.3(K) 641.5 (K)
Size Class: sub-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 : Kepler-489
Alternate Name : "2MASS J19231995+3811036, KIC 2987027, KOI-197, WISE J192319.97+381103.2"
Star Distance(LY) : 1205.2
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 3.3 (GY)
Temperature : 4938 (K)
Spectral type : K2
UV portion[%]: 3.3
Visible portion[%]: 37.2
IR portion[%]: 59.4
Metalicity : 0.0
Absolute Magnitude: 4.7
Apparent Magnitude: 12.5
Right Ascension(RA) 290.8332
Declination (DEC) 38.1843
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. Batalha"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 443 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-489%20b/
Kepler-489 b
Kepler-489 b

  • Kepler-489 b is an exoplanet orbiting the star Kepler-489, located about 1205.2 light-years (369.5 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-489 has apparent magnitude of 12.5, with absolute magnitude of 4.7.
  • It is 0.8 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 4938 with its spectral types of K2
  • In this planetary system, the extrasolar planet Kepler-489 b orbits around the star Kepler-489 every 17.3 days with its orbital distance of 0.12 AU ( 18313455.9 km)
  • (Projected orbit of Kepler-489 b around its host star Kepler-489)


  • The Star Kepler-489 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.397 AU ( 59347198.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.548 AU ( 82033337.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.836 AU ( 125000652.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.230 AU ( 183943935.3 km)
  • Radiation at Planetary Boundary of Kepler-489 b : 27440.96 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-489)



  • Kopparapu Recent Venus for Star Kepler-489 distance : 0.430 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-489 distance : 0.545 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-489 distance : 0.526 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-489 distance : 0.578 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-489 distance : 0.990 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-489 distance : 1.044 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-489)



  • Original Kopparapu Recent Venus for Star Kepler-489 distance : 0.426 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-489 distance : 0.562 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-489 distance : 0.563 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-489 distance : 1.007 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-489 distance : 1.047 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-489)



    (Position in Stellar Map of star Kepler-489 and its Exoplanet Kepler-489 b)



    (Zoomed position in Stellar Map of star Kepler-489 and its Exoplanet Kepler-489 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-489*)
    *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