Imaginary Picture of Kepler-1378 b

Display orbital revolution of Kepler-1378 b around the hoststar Kepler-1378
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Exoplanet Name : Kepler-1378 b
Alternate Name : "2MASS J19492959+4021590 b, K02883.01, KIC 5209845 b, KOI-2883 b, KOI-2883.01"
Status : Confirmed
Radius (Rjup / Re): 0.1960 (Rjup) 2.1970 (Rearth)
Mass (Mjup / Me): 0.0173 (Mjup) 5.4854 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0908 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0327
Orbital Period(Observed/Estimated) 11.95 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.1365
Star Radiation at Atmospheric Boundary: 19269.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 525.9 (K)
Blackbody T 0.3(K) 493.8 (K)
Blackbody T 0.7(K) 399.6 (K)
Tidally Locked Blackbody T 0.1(K) 625.3 (K)
Tidally Locked Blackbody T 0.3(K) 587.3 (K)
Size Class: sub-Neptune-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-1378
Alternate Name : "2MASS J19492959+4021590, KIC 5209845, KOI-2883"
Star Distance(LY) : 1652.6
Stellar Radius(Rsun) : 0.6 (Rsun Measured)
Stellar Mass(Msun) : 0.7 (Msun Measured) 0.7 (Msun Estimated)
Star Age : 6.5 (GY)
Temperature : 4353 (K)
Spectral type : K5
UV portion[%]: 1.3
Visible portion[%]: 29.5
IR portion[%]: 69.2
Metalicity : 0.0
Absolute Magnitude: 5.6
Apparent Magnitude: 14.1
Right Ascension(RA) 297.3733
Declination (DEC) 40.3664
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
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1378%20b/
Kepler-1378 b
Kepler-1378 b

  • Kepler-1378 b is an exoplanet orbiting the star Kepler-1378, located about 1652.6 light-years (506.7 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1378 has apparent magnitude of 14.1, with absolute magnitude of 5.6.
  • It is 0.7 times more massive and 0.6 times bigger compared with our Sun. The surface temperature is 4353 with its spectral types of K5
  • In this planetary system, the extrasolar planet Kepler-1378 b orbits around the star Kepler-1378 every 12.0 days with its orbital distance of 0.09 AU ( 13590638.2 km)
  • (Projected orbit of Kepler-1378 b around its host star Kepler-1378)


  • The Star Kepler-1378 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.247 AU ( 36907099.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.341 AU ( 51015256.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.520 AU ( 77735961.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.765 AU ( 114391873.2 km)
  • Radiation at Planetary Boundary of Kepler-1378 b : 19269.90 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1378)



  • Kopparapu Recent Venus for Star Kepler-1378 distance : 0.274 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1378 distance : 0.347 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1378 distance : 0.335 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1378 distance : 0.368 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1378 distance : 0.646 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1378 distance : 0.682 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1378)



  • Original Kopparapu Recent Venus for Star Kepler-1378 distance : 0.270 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1378 distance : 0.358 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1378 distance : 0.357 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1378 distance : 0.657 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1378 distance : 0.683 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1378)



    (Position in Stellar Map of star Kepler-1378 and its Exoplanet Kepler-1378 b)



    (Zoomed position in Stellar Map of star Kepler-1378 and its Exoplanet Kepler-1378 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1378*)
    *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