Imaginary Picture of Kepler-727 b

Display orbital revolution of Kepler-727 b around the hoststar Kepler-727
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Exoplanet Name : Kepler-727 b
Alternate Name : "2MASS J19392325+4502038 b, K00922.01, KIC 8826878 b, KOI-922 b, KOI-922.01, WISE J193923.25+450203.8 b"
Status : Confirmed
Radius (Rjup / Re): 0.2260 (Rjup) 2.5332 (Rearth)
Mass (Mjup / Me): 0.0197 (Mjup) 6.2623 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0562 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0141
Orbital Period(Observed/Estimated) 5.15 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.9758
Star Radiation at Atmospheric Boundary: 228242.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 975.5 (K)
Blackbody T 0.3(K) 916.1 (K)
Blackbody T 0.7(K) 741.2 (K)
Tidally Locked Blackbody T 0.1(K) 1160.1 (K)
Tidally Locked Blackbody T 0.3(K) 1089.5 (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-727
Alternate Name : "2MASS J19392325+4502038, KIC 8826878, KOI-922, WISE J193923.25+450203.8"
Star Distance(LY) : 2713.7
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 4.8 (GY)
Temperature : 5433 (K)
Spectral type : G7
UV portion[%]: 6.6
Visible portion[%]: 42.8
IR portion[%]: 50.6
Metalicity : -0.0
Absolute Magnitude: 4.4
Apparent Magnitude: 14.0
Right Ascension(RA) 294.8469
Declination (DEC) 45.0344
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. Batalha"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 619 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-727&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-727%20b/
Kepler-727 b
Kepler-727 b

  • Kepler-727 b is an exoplanet orbiting the star Kepler-727, located about 2713.7 light-years (832.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-727 has apparent magnitude of 14.0, with absolute magnitude of 4.4.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5433 with its spectral types of G7
  • In this planetary system, the extrasolar planet Kepler-727 b orbits around the star Kepler-727 every 5.2 days with its orbital distance of 0.06 AU ( 8403342.9 km)
  • (Projected orbit of Kepler-727 b around its host star Kepler-727)


  • The Star Kepler-727 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.525 AU ( 78538152.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.726 AU ( 108560250.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.106 AU ( 165421798.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.627 AU ( 243425422.5 km)
  • Radiation at Planetary Boundary of Kepler-727 b : 228242.54 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-727)



  • Kopparapu Recent Venus for Star Kepler-727 distance : 0.555 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-727 distance : 0.703 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-727 distance : 0.679 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-727 distance : 0.745 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-727 distance : 1.254 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-727 distance : 1.323 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-727)



  • Original Kopparapu Recent Venus for Star Kepler-727 distance : 0.552 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-727 distance : 0.723 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-727 distance : 0.731 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-727 distance : 1.276 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-727 distance : 1.327 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-727)



    (Position in Stellar Map of star Kepler-727 and its Exoplanet Kepler-727 b)



    (Zoomed position in Stellar Map of star Kepler-727 and its Exoplanet Kepler-727 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-727*)
    *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