Imaginary Picture of Kepler-1275 b

Display orbital revolution of Kepler-1275 b around the hoststar Kepler-1275
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Exoplanet Name : Kepler-1275 b
Alternate Name : "2MASS J19340011+4455568 b, K02552.01, KIC 8757824 b, KOI-2552 b, KOI-2552.01, WISE J193400.11+445556.8 b"
Status : Confirmed
Radius (Rjup / Re): 0.1320 (Rjup) 1.4796 (Rearth)
Mass (Mjup / Me): 0.0127 (Mjup) 4.0473 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0498 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0100
Orbital Period(Observed/Estimated) 3.66 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.8488
Star Radiation at Atmospheric Boundary: 1079798.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1438.7 (K)
Blackbody T 0.3(K) 1351.1 (K)
Blackbody T 0.7(K) 1093.2 (K)
Tidally Locked Blackbody T 0.1(K) 1710.9 (K)
Tidally Locked Blackbody T 0.3(K) 1606.8 (K)
Size Class: super-Earth-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-1275
Alternate Name : "2MASS J19340011+4455568, KIC 8757824, KOI-2552, WISE J193400.11+445556.8"
Star Distance(LY) : 3763.7
Stellar Radius(Rsun) : 1.3 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 2.5 (GY)
Temperature : 6081 (K)
Spectral type : F8
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : 0.0
Absolute Magnitude: 3.1
Apparent Magnitude: 13.4
Right Ascension(RA) 293.5005
Declination (DEC) 44.9325
Hubble Space Telescope Guide Star Catalog (GSC) ID
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. Batalha12"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 446 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-1275+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1275%20b/
Kepler-1275 b
Kepler-1275 b

  • Kepler-1275 b is an exoplanet orbiting the star Kepler-1275, located about 3763.7 light-years (1154.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1275 has apparent magnitude of 13.4, with absolute magnitude of 3.1.
  • It is 1.2 times more massive and 1.3 times bigger compared with our Sun. The surface temperature is 6081 with its spectral types of F8
  • In this planetary system, the extrasolar planet Kepler-1275 b orbits around the star Kepler-1275 every 3.7 days with its orbital distance of 0.05 AU ( 7445774.9 km)
  • (Projected orbit of Kepler-1275 b around its host star Kepler-1275)


  • The Star Kepler-1275 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.012 AU ( 151360122.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.399 AU ( 209219244.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.131 AU ( 318803827.9 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.136 AU ( 469133798.6 km)
  • Radiation at Planetary Boundary of Kepler-1275 b : 1079798.05 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1275)



  • Kopparapu Recent Venus for Star Kepler-1275 distance : 1.030 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1275 distance : 1.304 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1275 distance : 1.259 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1275 distance : 1.380 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1275 distance : 2.286 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1275 distance : 2.411 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1275)



  • Original Kopparapu Recent Venus for Star Kepler-1275 distance : 1.037 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1275 distance : 1.338 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1275 distance : 1.373 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1275 distance : 2.326 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1275 distance : 2.419 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1275)



    (Position in Stellar Map of star Kepler-1275 and its Exoplanet Kepler-1275 b)



    (Zoomed position in Stellar Map of star Kepler-1275 and its Exoplanet Kepler-1275 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1275*)
    *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