Imaginary Picture of Kepler-328 c

Display orbital revolution of Kepler-328 c around the hoststar Kepler-328
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Exoplanet Name : Kepler-328 c
Alternate Name : "2MASS J19431423+4000306 c, K01873.01, KIC 4939346 c, KOI-1873 c, KOI-1873.01, WISE J194314.22+400030.6 c"
Status : Confirmed
Radius (Rjup / Re): 0.4820 (Rjup) 5.4027 (Rearth)
Mass (Mjup / Me): 0.1240 (Mjup) 39.4243 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.3474 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.1952
Orbital Period(Observed/Estimated) 71.31 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.3506
Star Radiation at Atmospheric Boundary: 31289.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 593.6 (K)
Blackbody T 0.3(K) 557.5 (K)
Blackbody T 0.7(K) 451.0 (K)
Tidally Locked Blackbody T 0.1(K) 705.9 (K)
Tidally Locked Blackbody T 0.3(K) 662.9 (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-328
Alternate Name : "2MASS J19431423+4000306, KIC 4939346, KOI-1873, WISE J194314.22+400030.6"
Star Distance(LY) : 7679.7
Stellar Radius(Rsun) : 1.4 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6210 (K)
Spectral type : G1
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : -0.2
Absolute Magnitude: 2.6
Apparent Magnitude: 14.5
Right Ascension(RA) 295.8093
Declination (DEC) 40.0085
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title 0
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-328+&submit=SIMBAD+search
Open Exoplanet Database Link 0
Kepler-328 c
Kepler-328 c

  • Kepler-328 c is an exoplanet orbiting the star Kepler-328, located about 7679.7 light-years (2354.6 pc) away from Solar System. Its discovery was publicly announced on 2013.
  • The host star Kepler-328 has apparent magnitude of 14.5, with absolute magnitude of 2.6.
  • It is 1.1 times more massive and 1.4 times bigger compared with our Sun. The surface temperature is 6210 with its spectral types of G1
  • In this planetary system, the extrasolar planet Kepler-328 c orbits around the star Kepler-328 every 71.3 days with its orbital distance of 0.35 AU ( 51972216.1 km)
  • (Projected orbit of Kepler-328 c around its host star Kepler-328)


  • The Star Kepler-328 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.202 AU ( 179846548.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.662 AU ( 248594929.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.532 AU ( 378803658.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.726 AU ( 557426177.1 km)
  • Radiation at Planetary Boundary of Kepler-328 c : 31289.68 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-328)



  • Kopparapu Recent Venus for Star Kepler-328 distance : 1.214 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-328 distance : 1.537 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-328 distance : 1.484 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-328 distance : 1.627 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-328 distance : 2.687 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-328 distance : 2.834 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-328)



  • Original Kopparapu Recent Venus for Star Kepler-328 distance : 1.226 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-328 distance : 1.577 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-328 distance : 1.623 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-328 distance : 2.736 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-328 distance : 2.845 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-328)



    (Position in Stellar Map of star Kepler-328 and its Exoplanet Kepler-328 c)



    (Zoomed position in Stellar Map of star Kepler-328 and its Exoplanet Kepler-328 c (zoom level 3))

    (Synthetic Spectrum of star Kepler-328*)
    *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