Imaginary Picture of Kepler-1457 b

Display orbital revolution of Kepler-1457 b around the hoststar Kepler-1457
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Exoplanet Name : Kepler-1457 b
Alternate Name : "2MASS J18550494+4201380 b, K03287.01, KIC 6584273 b, KOI-3287 b, KOI-3287.01, WISE J185504.93+420137.9 b"
Status : Confirmed
Radius (Rjup / Re): 0.1780 (Rjup) 1.9952 (Rearth)
Mass (Mjup / Me): 0.0158 (Mjup) 5.0153 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.2704 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.1399
Orbital Period(Observed/Estimated) 51.11 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.2599
Star Radiation at Atmospheric Boundary: 31192.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 593.1 (K)
Blackbody T 0.3(K) 557.0 (K)
Blackbody T 0.7(K) 450.7 (K)
Tidally Locked Blackbody T 0.1(K) 705.4 (K)
Tidally Locked Blackbody T 0.3(K) 662.4 (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-1457
Alternate Name : "2MASS J18550494+4201380, KIC 6584273, KOI-3287, WISE J185504.93+420137.9"
Star Distance(LY) : 2900.9
Stellar Radius(Rsun) : 1.3 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 3.7 (GY)
Temperature : 5846 (K)
Spectral type : G1
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : -0.1
Absolute Magnitude: 3.2
Apparent Magnitude: 12.9
Right Ascension(RA) 283.7706
Declination (DEC) 42.0272
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-1457+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1457%20b/
Kepler-1457 b
Kepler-1457 b

  • Kepler-1457 b is an exoplanet orbiting the star Kepler-1457, located about 2900.9 light-years (889.4 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1457 has apparent magnitude of 12.9, with absolute magnitude of 3.2.
  • It is 1.0 times more massive and 1.3 times bigger compared with our Sun. The surface temperature is 5846 with its spectral types of G1
  • In this planetary system, the extrasolar planet Kepler-1457 b orbits around the star Kepler-1457 every 51.1 days with its orbital distance of 0.27 AU ( 40455922.6 km)
  • (Projected orbit of Kepler-1457 b around its host star Kepler-1457)


  • The Star Kepler-1457 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.934 AU ( 139776798.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.292 AU ( 193208063.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.968 AU ( 294406332.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.896 AU ( 433231815.1 km)
  • Radiation at Planetary Boundary of Kepler-1457 b : 31192.15 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1457)



  • Kopparapu Recent Venus for Star Kepler-1457 distance : 0.964 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1457 distance : 1.221 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1457 distance : 1.180 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1457 distance : 1.293 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1457 distance : 2.153 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1457 distance : 2.271 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1457)



  • Original Kopparapu Recent Venus for Star Kepler-1457 distance : 0.967 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1457 distance : 1.255 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1457 distance : 1.280 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1457 distance : 2.191 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1457 distance : 2.278 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1457)



    (Position in Stellar Map of star Kepler-1457 and its Exoplanet Kepler-1457 b)



    (Zoomed position in Stellar Map of star Kepler-1457 and its Exoplanet Kepler-1457 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1457*)
    *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