Imaginary Picture of Kepler-1028 b

Display orbital revolution of Kepler-1028 b around the hoststar Kepler-1028
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Exoplanet Name : Kepler-1028 b
Alternate Name : "2MASS J19182234+4946521 b, K01965.01, KIC 11657891 b, KOI-1965 b, KOI-1965.01, WISE J191822.34+494652.3 b"
Status : Confirmed
Radius (Rjup / Re): 0.1190 (Rjup) 1.3339 (Rearth)
Mass (Mjup / Me): 0.0087 (Mjup) 2.7700 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0349 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0069
Orbital Period(Observed/Estimated) 2.51 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.5569
Star Radiation at Atmospheric Boundary: 728129.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1303.8 (K)
Blackbody T 0.3(K) 1224.4 (K)
Blackbody T 0.7(K) 990.6 (K)
Tidally Locked Blackbody T 0.1(K) 1550.4 (K)
Tidally Locked Blackbody T 0.3(K) 1456.0 (K)
Size Class: super-Earth-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-1028
Alternate Name : "2MASS J19182234+4946521, KIC 11657891, KOI-1965, WISE J191822.34+494652.3"
Star Distance(LY) : 1982.0
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 4.7 (GY)
Temperature : 5675 (K)
Spectral type : G7
UV portion[%]: 7.5
Visible portion[%]: 44.3
IR portion[%]: 48.2
Metalicity : -0.1
Absolute Magnitude: 4.2
Apparent Magnitude: 13.1
Right Ascension(RA) 289.5931
Declination (DEC) 49.7812
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-1028+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1028%20b/
Kepler-1028 b
Kepler-1028 b

  • Kepler-1028 b is an exoplanet orbiting the star Kepler-1028, located about 1982.0 light-years (607.7 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1028 has apparent magnitude of 13.1, with absolute magnitude of 4.2.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5675 with its spectral types of G7
  • In this planetary system, the extrasolar planet Kepler-1028 b orbits around the star Kepler-1028 every 2.5 days with its orbital distance of 0.03 AU ( 5227108.4 km)
  • (Projected orbit of Kepler-1028 b around its host star Kepler-1028)


  • The Star Kepler-1028 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.583 AU ( 87256165.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.806 AU ( 120610822.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.229 AU ( 183784202.9 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.808 AU ( 270446505.7 km)
  • Radiation at Planetary Boundary of Kepler-1028 b : 728129.52 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1028)



  • Kopparapu Recent Venus for Star Kepler-1028 distance : 0.608 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1028 distance : 0.770 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1028 distance : 0.744 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1028 distance : 0.816 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1028 distance : 1.364 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1028 distance : 1.439 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1028)



  • Original Kopparapu Recent Venus for Star Kepler-1028 distance : 0.608 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1028 distance : 0.792 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1028 distance : 0.804 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1028 distance : 1.388 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1028 distance : 1.443 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1028)



    (Position in Stellar Map of star Kepler-1028 and its Exoplanet Kepler-1028 b)



    (Zoomed position in Stellar Map of star Kepler-1028 and its Exoplanet Kepler-1028 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1028*)
    *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