Imaginary Picture of Kepler-1178 b

Display orbital revolution of Kepler-1178 b around the hoststar Kepler-1178
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Exoplanet Name : Kepler-1178 b
Alternate Name : "2MASS J19134945+4548076 b, K02298.02, KIC 9334893 b, KOI-2298 b, KOI-2298.02, WISE J191349.46+454807.7 b"
Status : Confirmed
Radius (Rjup / Re): 0.0950 (Rjup) 1.0649 (Rearth)
Mass (Mjup / Me): 0.0039 (Mjup) 1.2258 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.1824 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0871
Orbital Period(Observed/Estimated) 31.81 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.0811
Star Radiation at Atmospheric Boundary: 24275.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 557.1 (K)
Blackbody T 0.3(K) 523.2 (K)
Blackbody T 0.7(K) 423.3 (K)
Tidally Locked Blackbody T 0.1(K) 662.5 (K)
Tidally Locked Blackbody T 0.3(K) 622.2 (K)
Size Class: 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-1178
Alternate Name : "2MASS J19134945+4548076, KIC 9334893, KOI-2298, WISE J191349.46+454807.7"
Star Distance(LY) : 1572.6
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 4.7 (GY)
Temperature : 4734 (K)
Spectral type : K2
UV portion[%]: 3.2
Visible portion[%]: 37.0
IR portion[%]: 59.8
Metalicity : -0.1
Absolute Magnitude: 3.9
Apparent Magnitude: 12.3
Right Ascension(RA) 288.4561
Declination (DEC) 45.8021
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-1178+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1178%20b/
Kepler-1178 b
Kepler-1178 b

  • Kepler-1178 b is an exoplanet orbiting the star Kepler-1178, located about 1572.6 light-years (482.1 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1178 has apparent magnitude of 12.3, with absolute magnitude of 3.9.
  • It is 0.8 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 4734 with its spectral types of K2
  • In this planetary system, the extrasolar planet Kepler-1178 b orbits around the star Kepler-1178 every 31.8 days with its orbital distance of 0.18 AU ( 27283770.6 km)
  • (Projected orbit of Kepler-1178 b around its host star Kepler-1178)


  • The Star Kepler-1178 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.556 AU ( 83161077.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.768 AU ( 114950341.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.171 AU ( 175158881.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.723 AU ( 257753967.6 km)
  • Radiation at Planetary Boundary of Kepler-1178 b : 24275.65 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1178)



  • Kopparapu Recent Venus for Star Kepler-1178 distance : 0.609 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1178 distance : 0.770 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1178 distance : 0.744 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1178 distance : 0.817 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1178 distance : 1.412 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1178 distance : 1.489 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1178)



  • Original Kopparapu Recent Venus for Star Kepler-1178 distance : 0.601 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1178 distance : 0.795 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1178 distance : 0.795 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1178 distance : 1.435 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1178 distance : 1.493 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1178)



    (Position in Stellar Map of star Kepler-1178 and its Exoplanet Kepler-1178 b)



    (Zoomed position in Stellar Map of star Kepler-1178 and its Exoplanet Kepler-1178 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1178*)
    *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