Imaginary Picture of Kepler-1889 b

Display orbital revolution of Kepler-1889 b around the hoststar Kepler-1889
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Exoplanet Name : Kepler-1889 b
Alternate Name : "KOI-2967 b, KOI-2967.01"
Status : Confirmed
Radius (Rjup / Re): 0.2626 (Rjup) 2.9436 (Rearth)
Mass (Mjup / Me): 0.0226 (Mjup) 7.2007 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.2082 (AU) 0.2082 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.1021
Orbital Period(Observed/Estimated) 37.30 (Days Obs.) 32.79 (Days Est.)
Surface Gravity (G Earth) 0.8310
Star Radiation at Atmospheric Boundary: 52022.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 674.0 (K)
Blackbody T 0.3(K) 633.0 (K)
Blackbody T 0.7(K) 512.2 (K)
Tidally Locked Blackbody T 0.1(K) 801.6 (K)
Tidally Locked Blackbody T 0.3(K) 752.8 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-1889
Alternate Name : "KIC 5980783, KOI-2967"
Star Distance(LY) : 4550.3
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6036 (K)
Spectral type : F9/G0V
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : -0.3
Absolute Magnitude: 5.0
Apparent Magnitude: 15.7
Right Ascension(RA) 297.1993
Declination (DEC) 41.2264
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK
Open Exoplanet Database Link
Kepler-1889 b
Kepler-1889 b

  • Kepler-1889 b is an exoplanet orbiting the star Kepler-1889, located about 4550.3 light-years (1395.1 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1889 has apparent magnitude of 15.7, with absolute magnitude of 5.0.
  • It is 1.1 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6036 with its spectral types of F9/G0V
  • In this planetary system, the extrasolar planet Kepler-1889 b orbits around the star Kepler-1889 every 37.3 days with its orbital distance of 0.21 AU ( 31146276.7 km)
  • (Projected orbit of Kepler-1889 b around its host star Kepler-1889)


  • The Star Kepler-1889 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.929 AU ( 138973833.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.284 AU ( 192098156.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.957 AU ( 292715078.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.879 AU ( 430743061.4 km)
  • Radiation at Planetary Boundary of Kepler-1889 b : 52022.74 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1889)



  • Kopparapu Recent Venus for Star Kepler-1889 distance : 0.948 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1889 distance : 1.200 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1889 distance : 1.159 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1889 distance : 1.271 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1889 distance : 2.106 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1889 distance : 2.222 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1889)



  • Original Kopparapu Recent Venus for Star Kepler-1889 distance : 0.954 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1889 distance : 1.232 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1889 distance : 1.263 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1889 distance : 2.144 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1889 distance : 2.230 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1889)



    (Position in Stellar Map of star Kepler-1889 and its Exoplanet Kepler-1889 b)



    (Zoomed position in Stellar Map of star Kepler-1889 and its Exoplanet Kepler-1889 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1889*)
    *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