Imaginary Picture of Kepler-1270 b
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Exoplanet Name : Kepler-1270 b
Alternate Name :
Radius (Rjup / Re): 0.2960 (Rjup) 3.3179 (Rearth)
Mass (Mjup / Me): 0.0253 (Mjup) 8.0484 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0704 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0165
Orbital Period(Observed/Estimated) 6.03 (Days Obs.) 0.00 (Days Est.)
Star Radiation at Atmospheric Boundary: 1832821.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1642.2 (K)
Blackbody T 0.3(K) 1542.2 (K)
Blackbody T 0.7(K) 1247.8 (K)
Tidally Locked Blackbody T 0.1(K) 1952.9 (K)
Tidally Locked Blackbody T 0.3(K) 1834.0 (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-1270
Alternate Name :
Star Distance(LY) : 3926.9
Stellar Radius(Rsun) : 3.4 (Rsun Measured)
Stellar Mass(Msun) : 1.3 (Msun Measured) 1.3 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5047 (K)
Spectral type : K1
Metalicity : -0.0
Absolute Magnitude: 1.4
Apparent Magnitude: 11.8
Right Ascension(RA) 286.7156
Declination (DEC) 48.6453
Hubble Space Telescope Guide Star Catalog (GSC) ID 0
Discovered by
Discovery Paper - Authors "Timothy D. Morton1, Stephen T. Bryson2, Jeffrey L. Coughlin2,3, Jason F. Rowe4, Ganesh Ravichandran5, Erik A. Petigura6,7, Michael R. Haas2, and Natalie M. Batalha7"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 441 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK 0
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1270%20b/
Kepler-1270 b
Kepler-1270 b

  • Kepler-1270 b is an exoplanet orbiting the star Kepler-1270, located about 3926.9 light-years (1204.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1270 has apparent magnitude of 11.8, with absolute magnitude of 1.4.
  • It is 1.3 times more massive and 3.4 times bigger compared with our Sun. The surface temperature is 5047 with its spectral types of K1
  • In this planetary system, the extrasolar planet Kepler-1270 b orbits around the star Kepler-1270 every 6.0 days with its orbital distance of 0.07 AU ( 10535401.8 km)
  • (Projected orbit of Kepler-1270 b around its host star Kepler-1270)


  • The Star Kepler-1270 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.865 AU ( 279023911.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.578 AU ( 385683963.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.929 AU ( 587697008.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 5.781 AU ( 864821892.6 km)
  • Radiation at Planetary Boundary of Kepler-1270 b : 1832820.98 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1270)



  • Kopparapu Recent Venus for Star Kepler-1270 distance : 2.013 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1270 distance : 2.549 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1270 distance : 2.462 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1270 distance : 2.702 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1270 distance : 4.611 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1270 distance : 4.864 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1270)



  • Original Kopparapu Recent Venus for Star Kepler-1270 distance : 1.993 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1270 distance : 2.626 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1270 distance : 2.637 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1270 distance : 4.689 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1270 distance : 4.876 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1270)



    (Position in Stellar Map of star Kepler-1270 and its Exoplanet Kepler-1270 b)



    (Zoomed position in Stellar Map of star Kepler-1270 and its Exoplanet Kepler-1270 b (zoom level 3))