Imaginary Picture of Kepler-740 b
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Exoplanet Name : Kepler-740 b
Alternate Name :
Radius (Rjup / Re): 0.4080 (Rjup) 4.5733 (Rearth)
Mass (Mjup / Me): 0.0666 (Mjup) 21.1666 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0444 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0098
Orbital Period(Observed/Estimated) 3.58 (Days Obs.) 0.00 (Days Est.)
Star Radiation at Atmospheric Boundary: 640668.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1262.7 (K)
Blackbody T 0.3(K) 1185.8 (K)
Blackbody T 0.7(K) 959.4 (K)
Tidally Locked Blackbody T 0.1(K) 1501.6 (K)
Tidally Locked Blackbody T 0.3(K) 1410.2 (K)
Size Class: 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-740
Alternate Name :
Star Distance(LY) : 4722.1
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5750 (K)
Spectral type : G7
Metalicity : 0.0
Absolute Magnitude: 3.8
Apparent Magnitude: 14.6
Right Ascension(RA) 286.4823
Declination (DEC) 46.6925
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 632 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-740%20b/
Kepler-740 b
Kepler-740 b

  • Kepler-740 b is an exoplanet orbiting the star Kepler-740, located about 4722.1 light-years (1447.8 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-740 has apparent magnitude of 14.6, with absolute magnitude of 3.8.
  • It is 0.9 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5750 with its spectral types of G7
  • In this planetary system, the extrasolar planet Kepler-740 b orbits around the star Kepler-740 every 3.6 days with its orbital distance of 0.04 AU ( 6644555.1 km)
  • (Projected orbit of Kepler-740 b around its host star Kepler-740)


  • The Star Kepler-740 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.695 AU ( 104043039.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.961 AU ( 143814670.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.465 AU ( 219141731.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.156 AU ( 322476658.2 km)
  • Radiation at Planetary Boundary of Kepler-740 b : 640668.93 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-740)



  • Kopparapu Recent Venus for Star Kepler-740 distance : 0.722 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-740 distance : 0.914 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-740 distance : 0.883 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-740 distance : 0.968 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-740 distance : 1.616 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-740 distance : 1.704 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-740)



  • Original Kopparapu Recent Venus for Star Kepler-740 distance : 0.723 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-740 distance : 0.940 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-740 distance : 0.956 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-740 distance : 1.644 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-740 distance : 1.710 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-740)



    (Position in Stellar Map of star Kepler-740 and its Exoplanet Kepler-740 b)



    (Zoomed position in Stellar Map of star Kepler-740 and its Exoplanet Kepler-740 b (zoom level 3))