Imaginary Picture of Kepler-1540 b

Display orbital revolution of Kepler-1540 b around the hoststar Kepler-1540
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Exoplanet Name : Kepler-1540 b
Alternate Name : "2MASS J18532267+4112062 b, K04016.01, KIC 5938970 b, KOI-4016 b, KOI-4016.01, Kepler-1540 A b, WISE J185322.67+411206.2
Status : Confirmed
Radius (Rjup / Re): 0.2220 (Rjup) 2.4884 (Rearth)
Mass (Mjup / Me): 0.0194 (Mjup) 6.1591 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.4435 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.3434
Orbital Period(Observed/Estimated) 125.41 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.9947
Star Radiation at Atmospheric Boundary: 1153.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 260.1 (K)
Blackbody T 0.3(K) 244.3 (K)
Blackbody T 0.7(K) 197.7 (K)
Tidally Locked Blackbody T 0.1(K) 309.3 (K)
Tidally Locked Blackbody T 0.3(K) 290.5 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-1540
Alternate Name : "2MASS J18532267+4112062, KIC 5938970, KOI-4016, Kepler-1540 A, WISE J185322.67+411206.2"
Star Distance(LY) : 798.8
Stellar Radius(Rsun) : 0.6 (Rsun Measured)
Stellar Mass(Msun) : 0.7 (Msun Measured) 0.7 (Msun Estimated)
Star Age : 2.5 (GY)
Temperature : 4625 (K)
Spectral type : K4
UV portion[%]: 1.7
Visible portion[%]: 31.8
IR portion[%]: 66.5
Metalicity : 0.1
Absolute Magnitude: 5.3
Apparent Magnitude: 12.2
Right Ascension(RA) 283.3445
Declination (DEC) 41.2017
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-1540+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1540%20b/
Kepler-1540 b
Kepler-1540 b

  • Kepler-1540 b is an exoplanet orbiting the star Kepler-1540, located about 798.8 light-years (244.9 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1540 has apparent magnitude of 12.2, with absolute magnitude of 5.3.
  • It is 0.7 times more massive and 0.6 times bigger compared with our Sun. The surface temperature is 4625 with its spectral types of K4
  • In this planetary system, the extrasolar planet Kepler-1540 b orbits around the star Kepler-1540 every 125.4 days with its orbital distance of 0.44 AU ( 66349524.0 km)
  • (Projected orbit of Kepler-1540 b around its host star Kepler-1540)


  • The Star Kepler-1540 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.295 AU ( 44089858.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.407 AU ( 60943706.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.621 AU ( 92864721.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.913 AU ( 136654505.5 km)
  • Radiation at Planetary Boundary of Kepler-1540 b : 1153.83 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1540)



  • Kopparapu Recent Venus for Star Kepler-1540 distance : 0.324 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1540 distance : 0.410 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1540 distance : 0.396 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1540 distance : 0.435 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1540 distance : 0.755 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1540 distance : 0.797 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1540)



  • Original Kopparapu Recent Venus for Star Kepler-1540 distance : 0.320 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1540 distance : 0.423 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1540 distance : 0.423 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1540 distance : 0.768 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1540 distance : 0.799 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1540)



    (Position in Stellar Map of star Kepler-1540 and its Exoplanet Kepler-1540 b)



    (Zoomed position in Stellar Map of star Kepler-1540 and its Exoplanet Kepler-1540 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1540*)
    *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