Imaginary Picture of Kepler-1172 b

Display orbital revolution of Kepler-1172 b around the hoststar Kepler-1172
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Exoplanet Name : Kepler-1172 b
Alternate Name : "2MASS J19215388+3745597 b, K02280.01, KIC 2439243 b, KOI-2280 b, KOI-2280.01, WISE J192153.87+374559.6 b"
Status : Confirmed
Radius (Rjup / Re): 0.2850 (Rjup) 3.1946 (Rearth)
Mass (Mjup / Me): 0.0244 (Mjup) 7.7699 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.1671 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0712
Orbital Period(Observed/Estimated) 26.02 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.7614
Star Radiation at Atmospheric Boundary: 36419.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 616.6 (K)
Blackbody T 0.3(K) 579.0 (K)
Blackbody T 0.7(K) 468.5 (K)
Tidally Locked Blackbody T 0.1(K) 733.2 (K)
Tidally Locked Blackbody T 0.3(K) 688.6 (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-1172
Alternate Name : "2MASS J19215388+3745597, KIC 2439243, KOI-2280, WISE J192153.87+374559.6"
Star Distance(LY) : 4269.3
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 4.4 (GY)
Temperature : 5626 (K)
Spectral type : G6
UV portion[%]: 7.1
Visible portion[%]: 43.6
IR portion[%]: 49.3
Metalicity : -0.0
Absolute Magnitude: 4.0
Apparent Magnitude: 14.6
Right Ascension(RA) 290.4745
Declination (DEC) 37.7666
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
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1172%20b/
Kepler-1172 b
Kepler-1172 b

  • Kepler-1172 b is an exoplanet orbiting the star Kepler-1172, located about 4269.3 light-years (1309.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1172 has apparent magnitude of 14.6, with absolute magnitude of 4.0.
  • It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5626 with its spectral types of G6
  • In this planetary system, the extrasolar planet Kepler-1172 b orbits around the star Kepler-1172 every 26.0 days with its orbital distance of 0.17 AU ( 25003702.4 km)
  • (Projected orbit of Kepler-1172 b around its host star Kepler-1172)


  • The Star Kepler-1172 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.624 AU ( 93346698.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.863 AU ( 129029531.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.314 AU ( 196612451.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.934 AU ( 289323835.2 km)
  • Radiation at Planetary Boundary of Kepler-1172 b : 36419.06 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1172)



  • Kopparapu Recent Venus for Star Kepler-1172 distance : 0.653 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1172 distance : 0.826 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1172 distance : 0.798 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1172 distance : 0.875 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1172 distance : 1.466 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1172 distance : 1.546 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1172)



  • Original Kopparapu Recent Venus for Star Kepler-1172 distance : 0.652 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1172 distance : 0.850 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1172 distance : 0.862 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1172 distance : 1.491 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1172 distance : 1.551 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1172)



    (Position in Stellar Map of star Kepler-1172 and its Exoplanet Kepler-1172 b)



    (Zoomed position in Stellar Map of star Kepler-1172 and its Exoplanet Kepler-1172 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1172*)
    *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